Matsuno Presentation

8/3/2019 Matsuno Presentation

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Reduction of Environmental Impacts by

Development of Industrial Symbiosis in Japan- Case Studies for Application of Co-production

Technologies in Steel Industries and its Reduction Potential

of Greenhouse Gas Emissions -

Yasunari Matsuno, Ichiro Daigo, Masaru Yamashita

and Yoshihiro Adachi

Department of Material Engineering, Graduate School of

Engineering, The University of Tokyo


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Topics Introduction Backgrounds of this study

What is Co-production technology

Application of Co-production technologiesin Steel industry

Low-temperature Gasification Plant

CO2

Recovery and Utilization System

Results of the case studies

Conclusion


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To maximize energy, resource,

environmental efficiency

Recycle-oriented Society

Kyoto Protocol (Reduction of GHGs)

Industrial symbiosis

Individually optimization

Industry A

Industry B

Industry C

Energy,

Resources

Industry A

Industry B

Industry C

Energy,

Resources


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Example of Industrial symbiosis

Jurong Island, Singapore

To develop Jurong Island into a World-Class Chemicals Hub in the Asia Pacific Region

Oil

Fuel Oil

Recycle Hubvalue chain

cluster

Environment

Final wastesCO2, Exhaust heat

ProductsWastes

Recycled

materials

H2 , Syngas

High press. SteamElec. Power

Fuels

consumer

Environment

consumer

Chemicals

Medici

ne


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Locations of key industries

Steel works

Refineries Petroleum industry

Ethylene plants Petrochemical industry

LNG tanks

Potentials to develop industrial

symbiosis


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FuelsEnergy

Raw materials

Power Generation

Manufacturing Pro.

FuelsEnergy

Raw materials

Wastes

Power Generation

Manufacturing Pro.

Main products

Goods

Electricity

Materials

Large amount of waste heat

(1) Existing System

(2) Co-production SystemMain products

Goods

Electricity

Materials

Little waste heat

Co-products

Fuels

ChemicalsSteam etc.

Newly Energy

Saving Process

What is co-production technology?

- Technologies for Industrial symbiosis


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Industry A

Industry B Industry C

Energy,

Resources

Energy,

Resources

Industry A

Industry B

Industry C


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Goal and scope

To expand system boundary to evaluate total

environmental impacts

To investigate environmental impacts of Co-productiontechnologies (for Industrial symbiosis)

Gasification plant

Dry ice (cryogenic energy ) production plantwith CHP

Steel works


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Methodology

Industries (capacity, location)

Waste heat distribution

D

emand and supply of products, energy

2To conduct LCA for co-production technologies

- CO2

emissions-

1 To investigate where to apply co-production technologies

3To optimize the transport of products by Linear

Planning method

4To investigate total environmental impacts


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Co-production technology

Current technology

11st Stepst Step

To assess the reduction

potential of environmental

impacts by co-production

technology.

To compare with current

technology.

22nd Stepnd Step


potential of environmentalimpacts in a industrial cluster

scale.

To investigate the demand and

supply of energy and products.

To develop a model

33rd Steprd Step


potential of environmentalimpacts in a regional

(country) scale.

To develop database.

To integrate with other

tools.

Power stations

Fuel gas

Steel plant with co-production process

Electricity

Demand

and SupplyGrid mix

Conventionalprocess

Demand

and Supply


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Where to apply co-production technologies?

- Waste heat distribution in industries in Japan

Waste heat amount Waste heat distribution

Apply Co-productiontechnology to Steel industry

Electricity

SteelChemical

Waste

incin.

9%

Paper pulp

Others

Ceramic


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Waste heat distribution in steel works

7FDO\H

D

Exhaust gas from

Coke oven, BF

GetcCOG

LDG etc

WaterSolid

Gas


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Co-production technology (1)

High-temperature

Waste heat

High efficiency gasification plant withhigh-temperature waste heat (600)

Tar1t

Waste heat

at 873 K

1300 Mcal

Gasification

plant

Gas

Steam

CO/H22

8300Mcal

Methanol

5810 Mcal

Electricity

or

Methanol: easy for storage,

Utilizing waste heat


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ICFG : Internally Circulating Fluidized-bed Gasifier

Synthesis Gas Combustion Gas

GasificationChamber

Char-CombustionChamber

Fluidizing mediumdescending zone Heat Recovery

Chamber

Fluidizing medium &Pyrolysis Residue

(Char, Tar)

Heat TransferTubes

Steam Air

Feedstock

(Fuel or Wastes)


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Low temperature

waste heatDry Ice (cryogenic energy )

production with CHP (Utilizing

waste heat)

Exhaust gas

recovery

Waste heat at

at 423 K305kcal

Electricity:

0.176 kWh

Dry ice production

process

CHPDI

1kg


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Cooling

Tower

Chemical

Heat

Pump

Flash

tank

Compressor

CO2 gas from

co-production

processes

Liquefied

CO2 tank

High-stage

expander

Dry-Ice

press

Dry-Ice

Gas Cooler Liquefier Sub-cooler

Low-stage

expander



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LCA for Co-production technologies

Fig. CO2 emission intensity for co-products (kg-CO2/kg)

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Location of steel works in Japan


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Location of methanol consumer in Japan


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Location of steel works and methanol

consumer in Japan


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Total CO2 emissions - Core technology

Fig. CO2 emission intensity of methanol

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Total CO2 emission reduction potential in Japan

CO2 emission reduction potential by co-production technologies:

Methanol: 0.34 ton-CO2/ton-methanol

Dry ice: 0.13 ton-CO2/ton-dry ice

Current demand in Japan:Methanol: 1.8 million ton/y,

Dry ice: 0.24 million ton/y

Total CO2 emission reduction potential in Japan:

Methanol: 0.6 million ton/y

Dry ice: 0.03 million ton/y


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Other possible application of dry ice

Low temperature crushing of PP pellet

PP pellet (3mm diameter)

Microscope of crushed pp pellet(200m/div)


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Low temperature crushing of PP Conventional technology

Low temperature crushing of PP by dry ice

PP pellet

1 kg

Liquefied N29.68 kg

Crushed PP1 kg

PP pellet1 kg

Dry ice3 kg

Crushed PP1 kg

CO2 emissions2.33 kg-CO2

CO2

emissions0.23 kg-CO2

2.10 kg-CO2

Potential demand of crushed PP: 0.017 million ton/y (0.64% of total PP)

CO2 reduction potential: 0.036 million ton-CO2


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Conclusion

Methanol production by co-production technology

(gasification plant) will reduce CO2 emissions by 91%

compared with conventional technology (92% reduction in

production, 90% reduction in transport)

Total CO2 emission reduction potential in Japan by methanol

production : 0.6 million ton-CO2

Dry Ice (cryogenic energy) production by co-production

technology will also reduce CO2 emissions by 64% compared

with conventional technology. Total CO2 emission reductionpotential in Japan is 0.03 million ton-CO2.

Other CO2 reduction potential by applying dry ice is being

investigated, such as low temperature crushing of PP pellet


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Thank you very much for your

attention.

For further information;

[email protected]

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