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Introduction to Biofuels September 15 & 22, 2014 Dong Jin Suh UST / KIST [email protected]

2014 fallsemester introduction-to_biofuels-ust(dj_suh)

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Page 1: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Introduction to Biofuels September 15 & 22, 2014

Dong Jin Suh UST / KIST

[email protected]

Page 2: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

What is Biomass?

All biological material derived from living or

recently living organisms

The term biomass (Greek bio meaning life + maza meaning mass) refers to non-fossilized and biodegradable organic material originating from plants, animals, and microorganisms

Page 3: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

What is Biomass?

Organic material that has stored sunlight in the form of chemical energy (via photosynthesis)

Simplified photosynthesis pathways

CO2 + H2O + Solar energy CH2O + O2

6CH2O → C6H12O6

nC6H12O6 → (C6H12O6)n

T>285K, Chlorophyll

Formaldehyde Glucose

Glucose Glucosan

Page 4: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

What is Bioenergy?

Renewable energy produced from biomass

Agricultural crops and residues

Sewage

Municipal Solid Waste (MSW)

Industrial residues

Animal residues

Dedicated crops and residues

Forestry crops and residues

Sea weeds and algae

Biomass Sources

Sources of (waste) biomass for conversion to energy

Waste

B

iom

ass

Page 5: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Biomass Strengths

Biomass is:

• Abundant

• Renewable

• Carbon neutral

• The only sustainable source of hydrocarbons.

Biomass can:

• Fill the gap between energy demand and petroleum availability in near term.

• Be a renewable source of hydrogen in the long term.

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Carbon Cycle – Fossil fuel vs. Biofuel

Illustration source: Sue Hill, Michigan Technological University

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Carbon-Neutral Bioenergy

Biomass-based Industry

Biomass

End-of-life biomaterials

Biofuel

Biomaterials

Heat

Electricity

CO2

CO2

CO2

CO2

CO2

Page 8: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Biomass Conversion Processes and Products

Pyrolysis

Gasification

Combustion

Fermentation

Digestion

Mechanical

Bio-oil

Fuel gas

Heat

Ethanol

Bio-gas

Oil

Chemcial

Heat

Electricity

Transportation fuels etc

Thermochemical Conversion

Biochemical Conversion

Mechanical Conversion

Primary Product

Market

Page 9: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Biomass to Energy Conversion Pathways

Illustration by NREL

Page 10: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Biomass Biomass to Liquid Fuels

Pyrolysis/ Liquefaction

Catalytic Upgrading

Gasification

Fischer-Tropsch Synthesis

Anaerobic Digestion

Catalytic Hydrogenation

Hydrolysis

Fermentation

Bio-oil

Biofuels

Syngas

VFAs (Volatile

Fatty Acids)

Mixed Alcohols

Bioethanol

Sugars

Waste Biomass

Pretreatments: collection, selection, milling, grinding, etc

Biofuels

Page 11: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Major Biofuels

Liquid

Bioethanol, Biodiesel, Biobutanol, Biomethanol, Pyrolysis Oil (Bio-oil), Biomass-to-Liquids (BTL), etc

Gas

Biogas, Biopropane, Synthetic Natural Gas (SNG), Syngas, etc

Solid

Wood, Charcoal, Torrefied biomass, Biomass pellets and briquettes, etc

Page 12: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Bioethanol/Biodiesel

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Bio-oil (Pyrolysis oil)

The liquid condensate of the vapors of pyrolysis

(heating of biomass in the absence of oxygen)

Page 14: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

BTL (Biomass-to-Liquids) fuels

Liquid fuels produced from biomass through

gasification into syngas (CO/H2), followed by a

Fischer-Tropsch synthesis

Gasification reacting biomass at high temperature (>700oC), without combustion, with a controlled amount of oxygen and/or steam

Page 15: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Biogas

A methane-rich flammable gas that results from

the decomposition of organic (waste) material

Landfill Biogas

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CHP (Combined Heat and Power)

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Share of bioenergy in the world primary energy mix. Source: based on IEA, 2006; and IPCC, 2007

Share of biomass sources in the primary energy mix. Source: based on data from IPCC, 2007

Share of Bioenergy

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Share of Bioenergy in Renewable Energy

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Intra_European trade is not displayed for clarity.

Global Trade of Bioenergy

Page 20: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Bioenergy Potential

Technical Biomass Potential (2050)

World Energy

Demand (2050)

World energy demand (2008)

Sustainable Biomass potential (2050)

World biomass demand (2008)

World biomass demand (2050)

(v) Agricultural productivity improvement

(iv) Energy crops without exclusion

(iii) Energy crops with exclusion

(ii) Surplus forest production

(i) Agricultural and forest residues 50

200

250

500

600

1000

1500

EJ

/ Year

Current world energy demand (500 EJ/year)

Current world biomass demand (50 EJ/year)

Total world primary energy demand in 2050 in World Energy Association

(600-1000 EJ/year)

Modeled biomass demand in 2050 as found in literature studies

(50-250 EJ/year)

Technical potential for biomass production as found in literature studies

(50-1500 EJ/year)

Sustainable biomass potential in 2050 (200-500 EJ/year). Sustainable biomass

potential consist of: (i) residues from agriculture and forestry (~ 100 EJ); (ii)

surplus forest production – net annual increment minus current harvest (~80 EJ);

(iii) energy crops, excluding areas with moderately degraded soils and/or

moderate water scarcity (~120 EJ); (iv) additional energy crops grown in areas

with moderately degraded soils and/or moderate water scarcity (~70 EJ/) and (v)

additional potential when agricultural productivity increases faster than historic

trends thereby producing more food from the same land area (~140 EJ).

Source: Annual Report 2009 – IEA Bioenergy

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Pros Cons

Bioethanol Renewable Lower levels of pollution High ouctane number Few engine modifications Use existing infrastructure Nontoxic and biodegradable (No problems if spilled)

High production cost Lower energy output (mileage) Slow burning at a lower temp. Easily absorb water (summer) Deterioration against metals Corrosive to metals, rubber and plastic parts

Biodiesel Renewable Lower levels of pollution Few engine modifications Use existing infrastructure Nontoxic and biodegradable (No problems if spilled)

High production cost Quality variation depending on its feedstock Gels on cold weather Low stability Corrosiveness, deterioration

Mixture CO NOx SO2 PM VOC

BD20 -13.1 +2.4 -20 -8.9 -17.9

BD100 -42.7 +13.2 -100 -55.3 -63.2

Biodiesel emission benefits vs. Petroleum diesel (%)

Pros and Cons of Biofuels

Page 22: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Advantages of Biofuels

Biodiesel is Becoming More Energy Efficient

Health Benefits

Fuel Refineries are Cleaner

Fuel Economy

Reduce Foreign Oil Dependence

Economic Development

High-Quality Engine Performance

Sustainability

Reduce Greenhouse Gases

Page 23: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Disadvantages of Biofuels

Technical Challenges

Genetic Engineering of Biofuel Crops

Monoculture

Variation in Biofuel Quality

Fuel Use

Fertilizer Use

Deforestation

Food Security

Water Use

Regional Suitability

Page 24: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Next Generation Biofuels

Page 25: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Type Designation Raw materials Production

technologies

Bioethanol

1st generation

Conventional bioethanol

Sugar beet (sugar)

Cereals (starch)

Hydrolysis (saccharification) +

Fermentation

2nd generation

Cellulose-based bioethanol

Woods and herbage (Lignocellulose)

Pretreatment +

Hydrolysis (saccharification) +

Fermentation

Biodiesel

1st generation

Fatty acid methyl ester (FAME)

Vegetable oil crops (e.g. rapeseed)

Waste food oil

Pressure extraction + ester exchange

2nd generation

BTL (Biomass to Liquid)

Woods and herbage (Lignocellulose)

Gasification + FT synthesis

BHD (Bio-Hydrofined Diesel)

Vegetable oil crops & animal fats

Hydrogenolysis

1st and 2nd Generation Bioethanol/Biodiesel

Page 26: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

1st and 2nd Generation Bioethanol

1st generation 2nd generation

Substrate: Sugar(sucrose) from sugarcane and starch from corn or wheat

Substrate: Lignocellulosic materials (straw, corn stover, wood, waste)

No chemical/physical pretreatment of biomass before enzymatic hydrolysis

Chemical/physical pretreatment necessary to facilitate enzymatic hydrolysis

Optimized, commercial enzymes available

Expensive, non-commercial enzymes

2nd generation bioethanol reduces CO2 emission with 90-100% (WELL-to-WHEELS Report, EU commission 2007)

Page 27: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Starch and Lignocellulosic Biomass

Corn Grain

Corn Stover

Page 28: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Structure of Lignocellulosic Biomass

Page 29: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Cellulose, Hemicellulose, and Lignin

Page 30: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Agricultural Residues Energy Crops Cellulosic Wastes

Cellulosic Biomass: The New “Crude Oil”

Page 31: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Various Cellulosic Biomass

Agricultural Residues

corn stover, wheat straw, rice straw

Herbaceous Biomass

switchgrass

miscanthus

Woody Biomass

softwood

hardwood: Poplar, etc

Switchgrass (3-6 tons/acre) → 400-900 gal EtOH Miscanthus (20 tons/acre) → 3,250 gal EtOH Corn (7.6 tons/acre) → 756 gal EtOH Wood timber (4 tons/acre) → 520 gal EtOH

Switchgrass

Miscanthus

Poplar

Page 32: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Biomass Logistics

Collection and harvest

Transportation Storage Densification

Cut crop

Ted or invert crop

Container suitable for bulk material

Trailer suitable for bale stacking

Bale storage options:

Place in shelter wrap

tarp outdoor leave exposed

Bulk storage options:

Ensile dry and pelletize

silo

Pelletize

Packed with

Drying

Adjust baler compression

Moisture content

too high?

Bale or chop crop?

Yes No

Bale Chop

Page 33: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Carbon Emissions and Energy Balance

Corn ethanol

Cellulosic ethanol

Country Biofuel Energy balance

USA Corn ethanol 1.3

Brazil Sugarcane ethanol 8

Germany Biodiesel 2.5

USA Cellulosic ethanol 2-36

Page 34: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Bioethanol Production Steps

Sugar

Starch

Lignocellulose Pre

treatm

ent

Saccharific

atio

n

Ferm

enta

tion

Dis

tillatio

n/D

ehydra

tion

Bio

eth

anol

Page 35: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Obstacles (Logistics)

Collection Type/sequence of collection operation &

equipment efficiency Environmental restrictions (control erosion, soil

productivity, carbon level) Transportation Distance from plant & biomass amount Bulky in nature Increased density by chipping,

grinding or shredding

Storage Hauled to plant Stored at production site

Page 36: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Pretreatment for Lignocellulosic Bioethanol

Destroy lignin shell protecting cellulose and hemicellulose

Decrease crystallinity of cellulose

Increase porosity

Allows for enzymes or chemicals to have access to substrate (sugar) by removing the recalcitrance of lignocellulose

Cost intensive

Prehydrolysis of some of cellulose

Physical, Chemical, Physicochemical, Biological Methods

Page 37: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Biomass Recalcitrance

Lignocellulosic biomass is often described as “recalcitrant”.

Plant biomass has evolved superb mechanisms for resisting assault on its structural sugars from the microbial and animal kingdoms.

These mechanisms are comprised of both chemical and structural elements: • The waxy barrier and dense cells forming the rind of grasses and bark of

trees. • The vascular structures (tubes) that carefully limit liquid penetration

throughout plant stems. • The composite nature of the plant cell wall that restricts transfer from

cell to cell. • The hemicellulose coating on the cellulose-containing microfibrils if the

cell wall. • The crystalline nature of cellulose itself, and • The inherent difficulty enzymes have acting on insoluble surfaces like

cellulose.

Page 38: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Various Pretreatment Methods

Pretreatment

Physical Method

Milling, Chipping, Grinding

Gamma Irradiation

Chemical Method

Acid (Concentrated or Diluted)

Alkaline

Organosolvent

Physico-chemical Method

Steam (with Acid)

LHW (liquid hot water)

AFEX (ammonia fiber explosion)

ARP (ammonia recycle percolation)

Biomass

Pretreatment Additives

Energy Mechanical

Heat

Page 39: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Issues in Pretreatment

Expensive stage in 2nd generation bioethanol

Inhibitors such as:

- Phenolic from lignin degradation

- Furfural from C5 degradation

- HMF(hydroxymethylfurfural) from C6 degradation

Corrosion problems

Acid recovery is expensive

Material loss

Better understanding of plant cell wall structure & function

Page 40: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Hydrolysis (Saccharification)

Polysaccharides break down into monomers follows by fermentation and distillation

Cellulose can be hydrolyzed using:

- Acid hydrolysis (Traditional method)

- Enzymatic hydrolysis (The current state-of-art method)

Acid hydrolysis advantages:

- Faster acting reaction

- Less residence time in reactor

Enzymatic hydrolysis advantages:

- Run at lower temperature

- Higher conversion

- Environmentally friendly

Page 41: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Fermentation

Convert sugars (C5 and/or C6) to ethanol using microbes

Typically Baker’s yeast is used (Saccharomyces cerevisiae).

S. cerevisiae for ethanol from glucose (C6) but not from xylose (C5)

Some bacteria ferment C5 & C6 (E.coli & Z.mobilis) – genetically modified

Conditions: 30°C, pH ~5

Page 42: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Issues in Hydrolysis and Fermentation

Problems for industrial application

- High production cost

- Low yield

Few microorganisms for degrading cellulose

Inhibitors for fermentation

R&D strategies:

- Robust organism to fermenting C5 and C6

- Robust organism toward inhibitors/temperature

Integrate hydrolysis and fermentation into a single microbe

Low conversion rates for C5 sugars

Technology to remove inhibitors is expensive

Page 43: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Hydrolysis and Fermentation Strategies

Processing Strategy (Each box represents a bioreactor – not to scale)

Biologically-Mediated Event

SHF SSF SSCF CBP

O2 O2 O2

Cellulase Production

Cellulose Hydrolysis

Hexose Fermentation

Pentose Fermentation

SHF: Separated Hydrolysis & Fermentation; SSF: Simultaneous Saccharification & Fermentation; SSCF: Simultaneous Saccharification & Co-Fermentation; CBP: Consolidated Bioprocessing

Page 44: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Ethanol Purification Processes

Distillation

- Azeotrope distillation

- Extractive distillation

- Pressure swing distillation

Dehydration

- Pressure swing adsorption

- Pervaporation

(Evaporation through Membrane)

Fermentor

Mash & Stripper Column

Rectification Column

Ethanol 2.5-10%

Ethanol ~50%

Ethanol 90-92%

Dehydration

Ethanol >99.5%

Page 45: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Purification by Dehydration

Adsorption

- Selective adsorption of the water form the distilled mixture

- Synthetic zeolite with a pore diameter of 0.3-0.35 nm ( water 0.28 nm, ethanol 0.4 nm)

- Can be regenerated essentially an unlimited number of times by drying

- Pressure swing adsorption (continuous process)

Pervaporation (Evaporation through Membrane)

- Separation of two components by a selective membrane under a pressure gradient in which the component passing the membrane is removed as a gaseous stream (permeate), while the other component remains in the liquid phase and is removed as a more concentrated stream (retentate)

- Development of membrane with a high selectivity and flux

Page 46: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Issues in Purification

Distillation-based Technologies

- High energy cost

- Use of the third component

- High capital cost

- Traditional technologies

Pressure Swing Adsorption

- Recent technology

Pervaporation

- promising in a small scale

- Require development of a new membrane

Page 47: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Bioethanol Production from Starch Biomass

Grinding Cooking Saccharification Fermentation Separation

Page 48: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Lignocellulosic Bioethanol Production Process

Biomass

Pre-

treatment

Cellulose

hydrolysis

Hemicellulose

hydrolysis

Enzyme

Production

Glucose

Fermentation

Pentose

Fermentation

Lignin

Utilization

Power

generation

Purification

Ethanol

Co-products

Page 49: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Lignocellulosic Bioethanol Production Route

Page 50: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Biomass Conversion “Platforms”

Page 51: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Bioenergy Production from Various Biomass

Page 52: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

History of Biofuels (1)

The oldest form of fuel used in human history: solid biofuels like wood, dung and charcoal

Whale oil for lighting uses (mid 1700s - early 1800s → Ethanol

The first transportation fuels: The first internal combustion engine in the US in 1826 by

Samuel Morey designed to run on a blend of ethanol and turpentine (derived pine trees)

The Ford Model T by Henry Ford in 1908 to run on ethanol

Rudolph Diesel’s engine in 1900 to run on peanut oil

Page 53: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

History of Biofuels (2)

Commercial scale production of petroleum (mid 1800s) The Atchison Agrol Co. went

bankrupt in 1939. (2000 biofuel stations

across the Midwest.)

World Word I & II

High demand of ethanol during World War I due to fossil oil

shortages (for synthetic rubber and motor fuel blend)

Several fossil oil crisis since 1970s

1973 oil crisis: caused by the OPEC oil export embargo

1979 oil crisis: caused by the Iranian Revolution

1990 oil price shock: caused by the Gulf War

Agrol 10% ethanol station at a James service station in Lincoln, Nebraska in 1938

Page 54: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Motivation for Biofuels

Large scale production of biofuels (policy-driven)

– Begin since 1970s in US and Brazil: oil crisis

– Significant increase since 2000: declining fossil supplies, high oil prices and climate change

Biofuel production vs. fossil oil price Biofuel production trend

Page 55: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Biofuel Production by Country

Bioethanol Biodiesel (1000 bbl/d) (1000 bbl/d)

Source: U.S. Energy Information Administration (EIA)

0

50

100

150

200

250

300

350

400

450

20

00

20

01

20

02

20

03

20

04

20

05

20

06

20

07

20

08

20

09

20

10

20

11

USA

Argentina

Brazil

Europe

France

Germany

Asia/Oceania

World

0

200

400

600

800

1000

1200

1400

1600

1800

20

00

20

01

20

02

20

03

20

04

20

05

20

06

20

07

20

08

20

09

20

10

20

11

Canada

USA

Brazil

Europe

Asia/Oceania

China

World

year year

Page 56: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Biofuel Consumption by Country

0

200

400

600

800

1000

1200

1400

1600

20

00

20

01

20

02

20

03

20

04

20

05

20

06

20

07

20

08

20

09

20

10

20

11

Canada

USA

Brazil

Europe

Asia/Ocenania

China

World

0

50

100

150

200

250

300

350

400

450

20

00

20

01

20

02

20

03

20

04

20

05

20

06

20

07

20

08

20

09

20

10

20

11

USA

Brazil

Europe

France

Germany

Italy

Spain

Asia/Oceania

World

Bioethanol Biodiesel (1000 bbl/d) (1000 bbl/d)

year year

Source: U.S. Energy Information Administration (EIA)

Page 57: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Biofuel Production by Country (2011)

Country Bioethanol Biodiesel Total

USA 909 63 972

Brazil 392 46 438

Germany 13.3 52 65.3

France 17.4 34 51.4

Argentina 3 47.3 50.3

China 39 7.8 46.8

Canada 30 2.7 32.7

Indonesia 0.1 20 20.1

Spain 8 12 20

Thailand 8.9 10.2 19.1

Belgium 6.5 8.7 15.2

Country Bioethanol Biodiesel Total

Colombia 6 9 15

Netherlands 4 9.6 13.6

Italy 1 11.2 12.2

Poland 2.9 7.5 10.4

Australia 7.5 1.6 9.1

UK 5 4 9

Austria 2.5 6.2 8.7

Sweden 3.4 5 8.4

India 6 2 8

Korea - 6.3 6.3

World total 1,493 404 1,897

Unit: 1000 bbl/d Source: U.S. Energy Information Administration (EIA)

1

2

6

5

3

4

8

7

1

4

2

5

3

6

7

9

9

8

10

10

Page 58: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

World Bioethanol Production

Page 59: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Background and Motivation

Country Background Policy and Target

USA

- Oil dependence & Energy security

- Substitution of MTBE (polluting groundwater) - Utilizing abundant corn

- Energy Policy Act of 2005 RFS mandate: 4 bil gal (2006), 7.5 bil gal (2012) - “20 in 10” plan by President Bush (2007) Reduce US gasoline use by 20% within 10 years - “30 in 30”: displace 30% of US gasoline consumption by 2030

Brazil

- Burden on foreign exchange (1973 oil crisis) - Utilizing abundant sugarcane

- ProAlcohol Program launched in 1975

- Bioethanol mandate 20-25% - Biodiesel mandate 3% (planning to increase)

- Flexible Fuel Vehicle

E U

- Oil dependence & Energy security

- GHC (Greenhouse gas ) emissions reduction

- Agricultural development

- Target: 5.75% (2010), 10% (2020)

- France: BD30 (commercial trucks and buses)

- Germany: BD100 in agricultural engines

Page 60: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

World Biofuel Targets and Mandates (1)

USA RFS1, Energy Policy Act of 2005

4 billion gal in 2006, 7.5 billion gal by 2012

RFS2, Energy Independence and Security Act of 2007

9 billion gal in 2008, 36 billion gal in 2022 (at least 16 billion gal cellulosic biofuels, limit corn ethanol to 15 billion gal)

EU 10% by 2020 for transportation (2008)

6% cap on first generation (food-based) biofuels (September, 2013, by European Parliament)

Brazil Bioethanol 20% (reduced from 25% due to rising global prices

for sugar)

Page 61: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

World Biofuel Targets and Mandates (2)

China E10 in 9 provinces (Heilongjian, Jinin, Liaoning, Anhui, Henan,

etc), 15% overall target for 2020 but seeking to move to a 10%

Canada RFS featuring E5 ethanol and B2 biodiesel (as of July 2011)

Bioethanol 8.5% in 4 provinces

Australia E4 ethanol and B2 biodiesel in New South Wales

Bioethanol target 5% by 2017 and 10% by 2020

India E5 ethanol mandate, scheduled to move E10, a doubtful goal of

20% for all biofuels by 2017

Page 62: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Bioethanol and Biodiesel Stations in USA

Source: http://www.afdc.energy.gov

Page 63: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Feedstock Use in Bioethanol Production (2008)

USA EU

Source: Energy 36 (2011) 2070-2076

Page 64: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Feedstock Use in Biodiesel Production (2008)

USA EU

Source: Energy 36 (2011) 2070-2076

Page 65: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Economics of Biofuels

Policy-driven (not market-driven)

– High prices compared with fossil fuels

– Tax credit or mandates

< Bioethanol vs. Gasoline> < Biodiesel vs. Petroleum diesel>

Source: Bloomberg, WF Economics Source: EIA

Bioethanol

Gasoline

Biodiesel

Petroleum diesel

Page 66: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Biofuel Feedstocks

Page 67: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

10 Edible Biofuels

Cottonseed Oil

Fiber, animal feed Oil productivity, -1°C

Safflower

Healthy oil, low gel pt. Limited popularity

Linseed Oil

Firniture;, healthy oil Stalks’fiber

Water

hydrogen

Sorghum

Popular crop, Various uses

Soybeans Peanut Oil Too valuable

as a food source

Corn Palm Oil High cost

Renewable?

Used Cooking Oil Separation/Purification Batch to batch variation

Page 68: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

10 Biofuel Crops

Sugarcane Brazil, most economical

Burring during harvesting

Corn Corn stover utilization

Cottonseed Wheat EU’s 1st energy crop

Sunflowers Fuel & Power

High oil content

Palm Oil Malaysia & Indonesia Plantation: ecosystem?

Jatropha 1st biodiesel feedstock in India

High oil content

Soybeans 1st biodiesel feedstock in US

Low oil content

Rapeseed/Canola 1st biodiesel feedstock in EU Healthy oil, good in winter

Switchgrass High productivity

Energy crop

Page 69: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Thermochemial Conversion of Biomass

Gasification

Pyrolysis

Other Conversion

Clean-up

Conversion /Collection

Separation

Synthesis

Purification

Purification

Partial Air

No

Air

Excess Air

Lig

no

cell

uo

sic

Bio

mass

Hydrogen Methane Oils Others

Hydrogen Alcohol FT Gasolin FT Diesel Olefins Oxochemicals Ammonia

Hydrogen Olefins Oils Special Chem

Thermal Conversion

Page 70: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Biomass to Syngas to Fuels and Chemicals

Primary Energy

Source B

iom

ass

Page 71: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

BTL (Biomass to Liquid) Process

BTL (Biomass-to-Liquids)

Biosyngas

Biomass

Bio-oil

Page 72: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Commercialization of Lignocellulosic Bioethanol (>1 MGY)

Company Location Year Technology Product EtOH Capacity

Abengoa Bioenegy Hugoton, KS, USA 2014 Biochemical Ethanol, electricity 25 MGY

Beta Renewables Cresentino, Italy 2013 Biochemical Ethanol 20 MGY

BlueFire Fulton, KS, USA 2014 Biochemical Ethanol , gypsum, lignin and protein cream 19 MGY

Enerkem Westbury, QC, Canada 2012 Thermochemical Ethanol, syngas, methanol 1.3 MGY

Enerkem Edmonton, AB, Canada 2014 Thermochemical Ethanol, syngas, methanol, acetates 10 MGY

Fiberight

Lawrenceville, VA, USA 2012 Biochemical Ethanol, sugars, chemicals 1 MGY

Blairstown, IA, USA 2013 Biochemical Ethanol, chemicals 6 MGY

Fulcrum BioEnergy McCarran, NV, USA 2015 Thermochemical Ethanol 10 MGY

Inbicon

Kalundborg, Denmark 2009 Biochemical Ethanol, electricity 1.5 MGY

Maabjerg, Denmark 2016 Biochemical Ethanol, biogas, electricity fertilizer, solid biofuel 20 MGY

Spiritwood, ND, USA 2015 Biochemical Ethanol, electricity, molasses 10+ MGY

INEOS Bio Vero Beach, FL, USA 2013 Hybrid Ethanol, electricity 8 MGY

Iogen

Ottawa, ON, Canada 2005 Biochemical Ethanol 1 MGY

Piracicaba, Sãu Paulo, Brazil 2014 Biochemical Ethanol 10 MGY

KiOR Columbus, MS, USA 2013 Thermochemical Cellulosic gasoline & diesel 13 MGY

Lanza Tech Soperton, GA, USA 2014 Hybrid Ethanol, chemicals, aviation fuel 4 MGY

Mascoma Kinross, MI 2014/5 Biochemical Ethanol 20 MGY

POET-DSM Emmetsburg, IA, USA 2014 Biochemical Ethanol, biogas 20 MGY

ZeaChem Boardman, OR, USA 2015 Hybrid Ethanol, chemicals 25+ MGY

Page 73: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Cellulosic Bioethanol Commercialization (Italy)

The largest scale plant in the world (operation since Oct, 2013)

Co. and Location: Beta Renewables (M&G group), Crescentino, northwest. Italy

Capacity: 20 MMgy cellulosic ethanol facility

Feedstock: Various biomass (starting with Wheat straw와 Arundo donax*)

Fund: Capital cost: 140 million Euros ($14/gal EtOH), expected $3/gal

*a perennial giant cane

Source: Kris Bevill (April 12, 2011). "World’s largest cellulosic ethanol plant breaks ground in Italy". Ethanol Producer Magazine. http://www.greencarcongress.com/2013/10/20131009-beta.html

Page 74: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Cellulosic Bioethanol Commercialization (Denmark)

The largest scale plant in the world by 2012 (2009)

Company & Location : Inbicon owned by Dong Energy, Kalundborg, Zealand

Capacity: 5.4 million liters (1.4 MMgy)

Feedstock: Wheat Straw (33,000 metric tons per year)

Fund: Construction cost: 400 million Danish kroner (DKK) ($80 million)

Feature: Minimize the byproducts

Source: Lisa Gibson. Bioethanol plant in Denmark inaugurated Biomass Magazine, November 19, 2009.

13,000 metric tons of lignin pellets per year, used as fuel at combined-heat-and-power plants, and 11,100 metric tons of C5 molasses, which is currently used for biomethane production via anaerobic digestion, and has been tested as a high carbohydrate animal feed supplement and potential bio-based feedstock for production of numerous commodity chemicals including diols, glycols, organic acids, biopolymer precursors and intermediates.

Page 75: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Cellulosic Bioethanol Commercialization (USA)

The commercial scale cellulosic bioethanol plant in USA (Aug 2013)

Company and Location: INEOS Bio, Vero Beach in Florida USA

Capacity: 8 MMgy cellulosic ethanol, 6 MW (gross) electricity generation facility

Feedstock: Vegetative and Yard waste; MSW (2014)

Fund: 130 M$ INEOS Bio-New Planet Energy joint venture + 50 M$ DOE grant

Feature: gasification-fermentation technology

Source: http://rt.com/usa/ineos-biofuel-waste-ethanol-500/

Page 76: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Selected USDA and DOE Grants (2002-2009)

Year Program Total Funding

($) Awarded Projects

Partial List of Recipients

2002 Biomass R&D Joint 79,350,000 8 awards Broin & Associates (now POET), Cargill, DuPont, Abengoa, National Corn Growers Association, Iowa Corn Promotion Board

2003 Biomass R&D Joint 23,803,802 19 awards Dartmouth (Mascoma), University of Florida (now partnering with Buckeye Technologies), Pure Vision Technology, Metabolix, Cargill, ADM

2004 Biomass R&D Joint 26,357,056 13 awards Rohm & Haas Co., Weyerhaeuser Company

2005 Biomass R&D Joint 12,626,931 11 awards Samuel Robert Noble Foundation

2006 Biomass R&D Joint 17,492,507 17 awards Increasing focus on feedstock development: Ceres Inc., SUNY, Edenspace Systems

2007 Biomass R&D Joint 18,449,090 21 awards GE Global Research, Ceres Inc., Agrivida Inc.

2007 DOE Commercial Scale Biorefinery

385,000,000 6 awards Abengoa Bioenergy, BlueFire Ethanol, Broin Companies (now POET), Iogen, Range Fuels

2008 DOE Small Scale Biorefinery

200,000,000 7 awards Verenium, Lignol Innovations, ICM, UT/Genera

2009 DOE Advanced Biorefinery

564,000,000 19 awards ADM, Amyris Biotechnology Inc., Elevance Renewable Sciences, BioEnergy Internation LLV (Myriant)

Source: E.E. Hood, P. Nelson, R. Powell, “Plant Biomass Conversion”, Wiley-Blackwell (2011).

Page 77: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

DOE Commercial Scale Biorefinery (2007)

Company Platform Process Scale (2010)

Range Fuels

($ 76 million)

• Thermochemical Gasification

Catalyst upgrading

• 1200 ton/day

• 40 million gal/year EtOH

• 9 millon gal/year MeOH

Abengoa Bioenergy ($ 76 million)

• Thermochemical

• Sugar

Enzyme hydrolysis

Gasification/catalyst upgrading

• 700 ton/day

• 11.4 million gal/year

Alico ($ 33 million)

• Thermochemical Gasification

Fermentation

• 770 ton/day

• 13.9 million gal/year

BlueFire Ethanol

($ 40 million)

• Sugar Concentrated acid hydrolysis

Fermentation

• 700 ton/day

• 19 million gal/year

Broin Companies ($ 80 million)

• Sugar Enzyme hydrolysis

Fermentation

• 842 ton/day

• 30 million gal/year

Iogen

($ 80 million)

• Sugar Enzyme hydrolysis

Fermentation

• 700 ton/day

• 18 million gal/year

• Investment of $385 million from DOE (2007-2010) • Selection guide: Lignocellulosic ethanol production costs • Full-scale ethanol plant construction and operation

Page 78: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Cellulosic Ethanol Facilities Awarded by DOE

Agricultural residues

Yard, wood, and citrus peel

Green and wood wastes from landfill

Corn fiber and corn stover

Wheat straw, barley straw, corn stover, switchgrass, and rice straw

Wood residues and energy crops

Page 79: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Range Fuels’ Thermochemical Process

Range Fuels to build first wood cellulosic ethanol plant in Georgia Source: Wood waste from Georgia’s millions of acres of indigenous Georgia Pine

Capacity: 20 million gallons a year (2008), potential 1 billion gallons a year

Page 80: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Cellulosic Biofuels Commercialization - Range Fuels

New Zealand-based biofuels start-up Lanza­Tech purchased a facility in Soperton, Ga.—previously owned by Range Fuels—at auction on Jan. 3 for $5.1 million. Range built the biomass gasification plant with the intention of making ethanol from wood chips, but the firm was unable to make the biofuel. Range’s lender took control of the facility for nonpayment and held the auction to recoup some of a $38 million loan, which had been guaranteed by the Department of Agriculture. Range was also awarded a $43 million grant from the Department of Energy. Range planned to use catalysts to convert the wood-derived gas into ethanol. In contrast, LanzaTech’s process uses proprietary microbes to transform the gas to ethanol. In addition to ethanol, LanzaTech’s microbes produce 2,3-butanediol as a coproduct, Burton reports. Both products can be formulated into jet fuel with help from LanzaTech’s partner firms. The Soperton site, already renamed freedom Pines Biorefinery, will be LanzaTech’s first production facility. The firm is currently working to launch a demonstration facility in Shanghai that will use waste gases from a steel mill operated by China’s Shougang Group to produce biofuels.

Source: Chemical & Engineering News, Jan. 16, 2012

Page 81: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

BlueFire’s Conc. Acid Hydrolysis (Arkenol Process)

Steam

Steam

Lignin

Filter

Filter

1st stage

Hydrolysis

2nd stage

Hydrolysis

Concentrated

Acid

Reconcentration

Acid/Sugar

Biomass

Sulfuric Acid

Purified

Lime

Centrifuge

Mixing

Tank

Gypsum

Mixed Sugars to

Fermentation or

Direct conversion

- Hydrogenation

- Thermal conversion

Chromatographic

Separation

Acid Recovery

Solids

Water

Condensate

Return

Sulfuric Acid

Solution

Steam

Strong

Sugar Solution

Solids

Solids

Pump

Liquor

to silica

processing

(as required)

10 6

7

5

4

3

2

1

8

9

Key Technologies: Acid/Sugar separation, Acid reconcentration, Acid recovery

Page 82: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

IOGEN’s Enzymatic Hydrolysis

a class of enzymes

produced chiefly by fungi,

bacteria, and protozoans

that catalyze the cellulolysis

(or hydrolysis) of cellulose

Page 83: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Comparison of Bioethanol Production Costs

POET: $4.13 → $ 2.35 at its South Dakota pilot plant (2009)

Novozymes: ~ $2 per gallon by reduction of enzyme cost 0.5 cents per gallon (2010)

2008 National Biofuels Action Plan: ~ $2 per gallon for 2009

U.S. Energy Department (2006): ~ $1.00 per gallon by 2012 (Karsner, 2006)

Page 84: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Bioethanol Cost Target (USA)

Page 85: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Bioethanol Cost Analysis

Ligno -cellulosic

Process develop.

Page 86: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Lignocellulosic Bioethanol Cost Analysis

Key processing cost elements (%)

Biomass Feedstock Feed handling Pretreatment/conditioning Enzymatic hydrolysis Enzyme production (Cellulase) Distillation and solid recovery Wastewater treatment Bioler/Turbogenerator (net 4%) Utilities Storage

33 5

18 12 9

10 4 4 4 1

Pretreatment and biological elements – key to cost

Source: NREL (2006)

Page 87: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Cellulosic Bioethanol Cost Target (USA)

Supply Chain Areas Units 2002 Corn Stover to

Ethanol Design Report 2005 MYPP with Feedstock

Logistics Estimates 2007 MYPP 2012 Target

2009 MYPP – 2012 Projection

Year $s Year 2000 2002 2007 2007

Feedstock Production

Grower Payment $/dry Ton $10.00 $10.00 $13.00 $15.90

Feedstock Logistics

Harvest and Collection $/dry Ton $12.50 $10.60 $12.15

Storage and Queuing $/dry Ton $1.75 $3.70 $5.95

Preprocessing $/dry Ton $2.75 $6.20 $10.74

Transportation & Handling $/dry Ton $8.00 $12.30 $6.16

Logistics Subtotal $/dry Ton $20.00 $25.00 $32.80 $35.00

Feedstock Total $/dry Ton $30.00 $35.00 $45.90 $50.90

Ethanol Yield gal EtOH/dry Ton 89.7 89.8 89.8 89.9

Feedstock Production

Grower Payment $/gal EtOH $0.11 $0.11 $0.15 $0.18

Feedstock Logistics

Harvest and Collection $/gal EtOH $0.14 $0.12 $0.14

Storage and Queuing $/gal EtOH $0.02 $0.04 $0.07

Preprocessing $/gal EtOH $0.03 $0.07 $0.12

Transportation & Handling $/gal EtOH $0.09 $0.14 $0.07

Logistics Subtotal $/gal EtOH $0.22 $0.28 $0.37 $0.39

Feedstock Total $/gal EtOH $0.33 $0.39 $0.51 $0.57

Biomass Conversion

Feedstock Handling $/gal EtOH $0.06 $0.00 $0.00 $0.00

Prehydrolysis/treatment $/gal EtOH $0.20 $0.21 $0.25 $0.26

Enzymes $/gal EtOH $0.10 $0.10 $0.10 $0.12

Saccharification & Fermentation

$/gal EtOH $0.09 $0.09 $0.10 $0.12

Distillation & Solids Recovery $/gal EtOH $0.13 $0.13 $0.15 $0.16

Balance of Plant $/gal EtOH $0.16 $0.17 $0.22 $0.26

Conversion Total $/gal EtOH $0.74 $0.69 $0.82 $0.92

Ethanol Production Total $/gal EtOH $1.07 $1.08 $1.33 $1.49

$1.07/gal → $1.49/gal

* MYPP: Multiyear Program Plan

Page 88: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Renewable Fuel Standard 2 (RFS2) Mandate (USA)

a. “Other” advanced biofuels is a residual category left over after the ethanol-equivalent gallons of cellulosic and biodiesel biofuels are subtracted from the “Total” advanced biofuels mandate.

b. The initial EISA cellulosic biofuels mandate for 2010 was for 100 million gallons. On February 3, 2010, EPA revised this mandate downward to 6.5 million ethanol-equivalent gallons.

c. The biomass-based diesel mandate for 2010 combines the original EISA mandate of 0.65 billion gallons (bgals) with the 2009 mandate of 0.5 bgals.

d. d. The initial RFS for cellulosic biofuels for 2011 was 250 million gallons. In November 2010 EPA revised this mandate downward to 6.0 million ethanol-equivalent gallons.

e. The initial RFS for cellulosic biofuels for 2012 was 500 million gallons. In December 2011 EPA revised this mandate downward to 10.45 million ethanol-equivalent gallons. In January 2013, the U.S. Court of Appeals for D.C. vacated EPA’s initial cellulosic mandate for 2012 and remanded EPA to replace it with a revised mandate. On February 28, 2013, EPA dropped the 2012 RFS for cellulosic biofuels to zero.

f. The initial 2013 cellulosic RFS was 1 bgals. In January 2013, EPA revised this mandate to 14 million ethanolequivalent gals. The 2013 biodiesel mandate was revised upwards from 1 bgals to 1.28 bgals actual volume.

g. To be determined by EPA through a future rulemaking, but no less than 1.0 billion gallons.

h. To be determined by EPA through a future rulemaking.

Page 89: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

RFS2 & Biofuel Prodction

Page 90: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Proposed RFS Standards

In February 2010, EPA lowered the 2010 RFS for cellulosic biofuels to 6.5 million gallons (mgals), on an ethanol-equivalent basis, down from its original 100 mgals scheduled by EISA.

In November 2010, EPA lowered the 2011 RFS for cellulosic biofuels to 6 mgals (ethanol equivalent), down from its original 250 mgals

In December 2011, EPA lowered the 2012 RFS for cellulosic biofuels to 8.65 mgals (ethanol equivalent), down from its original 500 mgals.

In January 2013, EPA proposed to lower the 2013 RFS for cellulosic biofuels to 14 mgals (ethanol equivalent), down from its original 1 billion gallons.

Page 91: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

US National Transportation Fuel Use Plan

Page 92: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Chemicals from Biomass

Building Blocks

1,4-succinic, fumaric, malic acids

2,5-Furan dicarboxylic acid

3-hydroxy propionic acid

Aspartic acid

Glucaric acid

Glutamic acid

Itaconic acid

Levulinic acid

3-Hydroxybutyrolactone

Sorbitol

Xylitol/Arabinitol

12 Building block chemicals

that can be produced from sugars

via biological or chemical conversions

Page 93: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Sugar-based Chemicals

12 Building Blocks

1,4-succinic, fumaric, malic acids

2,5-Furan dicarboxylic acid

3-hydroxy propionic acid

Aspartic acid

Levulinic acid

Glutamic acid

Itaconic acid

Glucaric acid

3-Hydroxybutyrolactone

Sorbitol

Xylitol/Arabinitol

Biological or Chemical Conversions from Sugar

Aqueous-Phase Reforming

C4

C5

C6

H2 & Alkanes

1,4-Butanediol, THF, Gamma-butyrolactone (GBL)

Diphenolic acid, Methyl THF

Page 94: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

High energy content (1.4 times higher than

ethanol; similar to gasoline) Low vapor pressure (6 times

lower than ethanol) Alternative to gasoline Possible pipeline supply

Biobutanol

Biobutanol Instead of Bioethanol

H

C

C

H

H

H H

H

O

C

H

H

H H

O

C

C

C

C H

H

H

H

H

H

H

H

H

O

H

Gasoline

Air-to-Fuel Ratio

Energy Content (Btu/gal)

Vapor Pressure (psi)

Motor Octante

Ethanol Methanol Butanol

63K 78K 110K 115K

4.6 0.33 2.0 4.5

91 92 94 96

6.6 9 11.1 12-15

Hydrophilic Corrosive

Bioethanol

Page 95: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Conventional Biodiesel Production Process

Page 96: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Conventional Biodiesel Production Route

Glycerin Purification

Reneutral- ization

Phase Separation

Neutral- ization

Trans- esterification

Catalyst Mixing

Purification Methanol Recovery

Quality Control

Methanol Recovery

Crude Biodiesel

Pharma- ceutical Glycerin

Crude Glycerin

Methyl Ester

(Biodiesel)

Recycled Methanol

Catalyst

Methanol

Neutralizing Acid

Vegetable oil, Animal Fats

Page 97: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Chemicals from Glycerol (Biodiesel Byproduct)

Source : NREL, “Top Value Added Chemicals from Biomass,” 2004

Page 98: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Neste Oil biodiesel plant in Porvoo, Finland

Second Generation Biodiesel

Page 99: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Biofuels fro Macro- and Microalgae

Page 100: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Bioenergy Production for Algae

Page 101: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Biodiesel Production from Microalgae

Feedstock Yield (US gal/acre)

Soya 40-50

Rapeseed 110-145

Mustard 140

Palm 650

Algae 10,000

Source: Biodiesel 2020: A Global Market Survey, 2nd Ed.

Page 102: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Microalgae Production Methods

Open Pond Closed PBR(Photobioreactor)

Low cost Proved production method Contamination possibility GMO effect on environment Sensitive to weather Evaporation problem

Controllability Potential to improve productivity High cost for construction and energy Required low cost production method

Page 103: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Scenario for Biofuel Production for Microalgae

Page 104: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Energy Production for Macroalgae (1)

In 2008, The Mitsubishi Research Institute (MRI) recommended Japan mass-culture

seaweed to collect natural resources such as bio-ethanol and uranium.

Japan’s ‘Apollo and Poseidon Initiative 2025’

Page 105: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Energy Production for Macroalgae (2)

Methane Fermentation using Macroalgae (Tokyo Gas)

Page 106: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Energy Production for Macroalgae (3)

Sea Wind Farms (Alfred Wegener Institute, Denmark)

Page 107: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Biofuel Technology

Fuel Source Benefits

Grain/Sugar

Ethanol

Corn, Sorghum,

Sugarcane

• Produces a high-octane fuel for gasoline blends

• Made from an available renewable resource

Biodiesel Vegetable oils, fats,

grasses

• Reduces emission

• Increases diesel fuel lubricity

Green Diesel and

Gasoline

Oils and fats, blended

with crude oil

• Offer a superior feedstock for biorefinery

• Are low-sulfur fuels

Cellulosic Ethanol Grasses, Wood chips,

Agricultural residues

• Produces a high-octane fuel for gasoline blends

• Is the only viable scenario to replace 30% of US petroleum use

Butanol Corn, Sorghum, Wheat,

Sugarcane • Offers a low-volatility, high energy-density, water-tolerant fuel

Pyrolysis Liquids Any lignocellulosic

Biomass

• Offer refinery feedstocks, fuel oils and a future source of

aromatics or phenols

Syngas Liquids Various biomass, Fossil

fuel sources

• Can integrate biomass sources with fossil fuel

• Produce high-quality diesel or gasoline

Diesel/Jet Fuel

from Algae

Microalgae in

aquaculture systems

• Offer a high yield per acre and an aquaculture source

• Could be employed for CO2 capture and reuse

Hydrocarbons from

Biomass Biomass carbohydrates

• Could generate synthetic gasoline, diesel fuel and other

petroleum products

Most

Matu

re

Least

Matu

re

Page 108: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Current Status and Future of Liquid Biofuels

low high

high low

Key

Commercial Technology:

Emerging Technology:

Developing Technology:

Products in red –not yet commercialized

known,

simpler

more

challenging

Feedstock

Supply

Volume

Feed

Costs

NATURAL OILS

SUGARS

STARCHES

WHOLE GRAIN

isomerization

transesterification

H2

Enzyme Conversion

Milling, Cooking,

Hydrolysis, Saccharification

C6 sugars

C6 sugars

Fermentation

Acid Dehydration

BIOMASS

Gasification

Acid or Enzyme Hydrolysis

Separation

fiber

residues

Cellulose

Hemicellulose

Lignin

Levulinic acid

SNAM catalysis

Acid or Enzyme Hydrolysis

Fuel

MTHF

Ethanol, NGLs

Syngas fermentation

Fischer-Tropsch catalysis

Fischer-Tropsch catalysis/other catalysis

MoS2 catalysis, etc.

syngas

P. Series

Fuel

Technology

ETG via catalysis

Methanol

Ethanol

BTL Diesel

BTL Gasoline

Mixed Higher Alcohols

Hydrogenation

Saccharification

C6 sugars

C6 C5 sugars

Saccharifacation

Ethanol

“Biogasoline”

“Oxidiesel”

Propane

NExBTL Biodiesel

Glycerin

Methanol or ethanol

Biodiesel (FAME or FAEE)

CURRENT PRODUCTION

Page 109: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Outlook

(from NEXANT)

Page 110: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Issues in Biofuels

Biofuels: The Good, the Bad and the Ugly

Are biofuels more sustainable than fossil fuels?

Are biofuels a solution or a (huge) problem?

Biofuels could kill more people than the Iraq War.

How green are biofuels?

A Cool Approach to Biofuels

Biofuel: The dangerous consequences of good intentions

Page 111: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

EU parliament votes to limit crop-based biofuels

The European Union Parliament has voted to impose a 6 percent limit on the use of biofuels derived from food crops to address competition with food production and to spur the development of renewable fuels made from non-food sources. The vote seeks to avert the EU biofuel requirement of 10 percent for transportation fuels through 2020 based on a directive that dates to 2008. The EU Parliament accounted for indirect land use change (ILUC) factors. A risk exists that biofuel production could spur massive conversion of forest and peatland into land for biofuel crops, which could lead to greater greenhouse-gas emissions.

(Source: Ethanol Producer Magazine, September 11, 2013)

The 6 percent cap is higher than the 5.5 percent cap proposed by the Environment Committee, but lower than the 8 percent lobbied for by the biofuels industry. The Parliament also proposed a 2.5 percent target for second generation biofuels or fuels derived from non-food sources like farm and industry waste. A 7.5 percent limit on ethanol in gasoline blends was also approved.

Page 112: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

Poet, Royal DSM Create Joint Venture to Make Cellulosic Ethanol Poet LLC, the largest U.S. corn- based ethanol producer by installed capacity, established a joint venture with Royal DSM NV (DSM) to produce cellulosic ethanol and license the technology to other plants in the U.S. and globally. The companies will each own 50 percent of the joint venture, named Poet-DSM Advanced Biofuels LLC, Poet said today in a statement. The venture will let Poet build one of the first cellulosic ethanol plants in the U.S. and decline a $105 million U.S. loan guarantee. Initial capital expenditure by the venture will be $250 million, which will be invested in Poet’s Project Liberty facility in Emmetsburg, Iowa.

The Emmetsburg plant is expected to begin production in the second half of 2013 and will convert corn cobs and other crop residue into 25 million gallons of ethanol a year. The venture intends to deploy the technology at Poet’s 26 other U.S. corn ethanol plants and license the technology to other producers globally. As much as 1 billion gallons of cellulosic ethanol could be produced annually at Poet’s 27 plants if the technology is deployed at all of them, according to the statement.

(Source: Bloomberg, January 24, 2012)

Cellulosic Biofuels Commercialization – POET

Page 113: 2014 fallsemester introduction-to_biofuels-ust(dj_suh)

POET-DSM’s first commercial cellulosic bioethanol

POET-DSM Advanced Biofuel’s first commercial cellulosic bio-ethanol plant remains on schedule for startup in the first part of 2014 as workers continue equipment installation and other activity through the winter. The plant, dubbed “Project LIBERTY,” will produce 20 million gallons of cellulosic biofuel per year—later ramping up to 25 million gallons—from corn cobs, leaves, husk and some stalk. Farmers primarily in a 40-mile radius to the plant harvested approximately 100,000 tons of biomass this fall to be used to start the plant and operate it through next fall. Farmers are already signing contracts for the 2014 harvest. Additionally, POET-DSM is in talks with other ethanol producers about expanding this technology to more plants around the US in the future. Royal DSM and POET, LLC, one of the world’s largest ethanol producers, formed a joint venture in January 2012 to demonstrate and license commercial cellulosic bioethanol production based on their proprietary and complementary technologies.

(Source: Green Car Congress, December 24, 2013)

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Mercedes trials agricultural waste-based fuel

Mercedes is to run a pilot project to trial the use of second-generation biofuel. Working in partnership with Clariant and Haltermann, the carmaker will trial the use of a fuel called sunliquid20, a super grade fuel consisting of 20 per cent cellulosic ethanol, produced from agricultural waste such as straw. Over the next twelve months, vehicles from a Mercedes-Benz test fleet consisting of a number of model types, will be run on the new fuel, refilling at an internal petrol station installed especially at for the project at the firm’s Stuttgart-Untertürkheim site. With an octane rating (RON) of more than 100, the fuel guarantees a high level of efficiency.

The cellulosic ethanol comes from Clariant's sunliquid demonstration plant in Straubing, where approximately 4,500 tonnes of agricultural residues such as grain straw or corn stover are converted into cellulosic ethanol each year. At the Haltermann plant in Hamburg the bioethanol is mixed with selected components to form the fuel; the specifications of which reflect potential European E20 fuel quality. (Source: The Green Car, January 29, 2014)

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China approves aviation biofuel

Government officials in China have approved a biobased aviation fuel for commercial use, with the Civil Aviation Administration of China (CAAC) awarding Sinopec the first certificate of airworthiness for biobased jet fuel.

According to CAAC officials, the biojet fuel complies with the CTSO-2C701 standard that applies to civil aviation jet fuel containing synthesized hydrocarbons. CTSO-2C701 requires alternative fuel and its synthetic paraffinic kerosene (SPK) component to conform to ASTM D7566-11a, a specification for aviation fuel containing synthesized hydrocarbons, and the supplement in CTSO-2C701.

(Source: Avionics-Intelligence, February 21, 2014)

In April 2013, Sinopec achieved the first test flight powered by its aviation biofuel: an Airbus A320 owned and operated by China Eastern Airlines completed an 85-minute flight on biojet fuel made from palm oil and recycled cooking oil feedstocks.

Civil Aviation Administration of China approves aviation biofuel for use by commercial jets

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US Military drop-in biofuels development

The U.S. biofuels industry was able to maintain support from the more-than-willing U.S. military. The Department of Energy (DOE) granted $18 million to four biorefineries to develop pilot-scale drop-in biofuels projects to meet military specifications for jet fuel and ship diesel. The military has shown eager support for the biofuels industry through past purchases of drop-in biofuels for demonstration and testing purposes. In December 2011, the Navy purchased 450,000 gallons of cooking oil- and algae-based drop-in fuels for the jets and vessels to be displayed in the Great Green Fleet during the summer 2012 Rim of RIMPAC in Hawaii. The biofuels were mixed in a 50/50 blend with traditional fossil fuels, which amounted to about $15 per gallon.

The biorefineries were Frontline Bioenergy LLCM (up to $4.2 million; Ames, Iowa), Cobalt Technologies (up to $2.5 million; Mountain View, California), Mercurius Biorefining, Inc. (up to $4.6 million; Ferndale, Washington), BioProcess Algae (up to $6.4 million; Shenandoah, Iowa)

(Source: Renewable Energy World, April 24, 2013)

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Seaweed could be new next biofuel

The University of Greenwich is a key player in a consortium of 12 UK universities and companies to develop manufacturing processes that can remove the high water content, and preserve seaweed for year-round use.

There is a global race on to develop the technologies to make seaweed a viable source of green power. Salt-water algae are a very attractive proposition as an alternative biofuel if the challenges can be overcome.

The consortium, known as MacroBioCrude, received EPSRC funding to establish an integrated supply and processing pipeline for the sustainable manufacture of liquid hydrocarbon fuels from seaweed. MacroBioCrude brings together researchers from six universities: Greenwich, Durham, Aberystwyth, Swansea, Harper Adams, and Highlands and Islands, as well as industrial partners Johnson Matthey Catalysts, Johnson Matthey Davy Technologies, Silage Solutions Ltd, Shell, and the Centre for Process Innovation (CPI).

Ensilage – a method traditionally used by farmers to turn grass into hay for winter animal feed – has potential to stop the seaweed rotting. The research, backed by £1.6m from the Engineering and Physical Sciences Research Council, will also explore the conversion of wet seaweed to gas, which can in turn be converted to liquid fuel.

(Source: The Fish Site, February 24, 2014)

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India’s RIIHL invests in Algae.Tec for algal biofuels

Australia-based algae products company Algae.Tec Limited announced an initial investment of AU$1.5 million (US$1.32 million) by India’s Reliance Industrial Investments and Holdings Limited (RIIHL), with additional investments of AU$1.2 million (US$1.1 million) over the next 2 years. This relationship also features pilot project agreements for building a 2-barrel per-day biofuels facility in India utilizing Algae.Tec’s technology funded by RIIHL affiliates. The companies plan to work together towards commercialization after the successful operation of the pilot biofuels facility.

The Algae.Tec system combines closed control of algae production within an engineered modular environment and efficient downstream biofuel processing. Algae.Tec has strategic partnerships with the Manildra Group, Lufthansa, Holcim Lanka Ltd and the Shandong Kerui Group Holding Ltd.

(Source: Green Car Congress, January 21, 2014)