EXHAUST GAS CLEANING SYSTEMS - Intermodal Asia...•Sulphur oxides are formed when the Sulphur in the fuel oxidizes during a combustion process. •SOx are harmful both to the environment

© Wärtsilä INTERNAL© Wärtsilä INTERNAL

EXHAUST GAS CLEANING SYSTEMS

WÄRTSILÄ MOSS AS

23.3.2017 [Presentation name / Author]1

© Wärtsilä INTERNAL© Wärtsilä INTERNAL 3/23/2017 [Presentation name / Author]2

Marine emission – SOx

• Sulphur oxides are formed when the Sulphur in the fuel oxidizes during a combustion process.

• SOx are harmful both to the environment and to human beings (respiratory problems such as asthma,COPD or lung cancer)

• Dissolves in the water in air and form acid rain, destroying fresh water resources, land, buildings and crops.

© Wärtsilä INTERNAL© Wärtsilä INTERNAL 23.3.2017 [Presentation name / Author]3

NOx

Acid rain

Tier II (2011)

US ECA Tier III (2016)

EU ECA?

SOx

Acid rain

3.5% (2012)

0,5% (2020)

0.5% in EU (2020)

ECA 0.1% (2015)

CO2

Greenhouse

gas

Under evaluation

by IMO

Body Act

IMO - SOx MARPOL Annex VI

IMO - Scrubbers Resolution MEPC.259(68)

EU 2012/33/EU

US EPA Vessel General Permit - VGP

California Air Resources Board - CARB California OGV Fuel Regulation

© Wärtsilä INTERNAL 23 March 20174 ©

Wärtsilä

CURRENT AND UPCOMING SULPHUR LEGISLATION

Note! EU will enforce 0,5%S limit in 2020 for EU waters, regardless of decision from IMO.

0.1

0.5

1.0

3.5

1.5

4.52

00

9

20

08

2010

20

11

2012

20

13

2014

2015

20

16

20

17

20

18

20

19

2020

Sulphur limit (%)

-67%

-97%

-86%

-78%

EU Ports

EU EEZ

California

ECA

World


ALTERNATIVES TO REDUCING NOX AND SOX


CHANGE TO MGO

Run full time on Marine Gas Oil

(MGO).

Convenient

Small investment

High operating cost

Future availability?

CONVERT TO LNG

Convert engines to run on gas

(LNG).

A solution which also

reduces NOx and

particulates

Investment cost

LNG availability

USE Exhaust Gas Cleaning

Install an exhaust gas

cleaning system (scrubber).

Works with high S HFO

Lowest total lifecycle cost

Use everywhere

Easy operation

ROI depends on fuel oil price

difference between low S fuel

oil and high S HFO (scrubber)

FUEL SWITCH

Switch to low sulphur fuel in

SECA.

Flexible

Small investment

High operating cost in SECA

Fuel change over procedures

Lube oil TBN management

Fuel availability?

Short term solution


• Global demand for distillates is likely to increase →

Price of MGO is expected to increase while price of

HFO will stay the same or even decrease

• Scrubbers demonstrated to work in marine

environment

• Scrubbers allow for same bunkering and same engine

operation as before

• European and North American SECA now ratified,

more SECAs can be expected

• Wärtsilä has the largest portfolio of marine scrubber

solutions

• Wärtsilä scrubber solutions are fit for new buildings

and retrofits, for any engine and boiler brands

• Wärtsilä can offer financial solution for potential

projects

Reflections on fuel prices and attractiveness of solutions

© Wärtsilä INTERNAL

WE CAN CUSTOMIZE A SCRUBBER

SOLUTION FOR YOU


Open loop scrubber – sea water operations • Does not need caustic soda

• Water treatment in open loop

• Easy solution

Applications: main alternative for ocean-going ships with focus on the

environment and an easy solution

Closed loop scrubber – closed loop operations• Independent on seawater alkalinity

• Zero effluent discharge an option

• Low power demand

• Needs caustic soda as a reagent

Applications: seas with extremely low alkalinity and for operators

looking for continued closed loop operation

Hybrid scrubbers – open loop / closed loop operations• Flexible system

Applications: ships requiring full flexibility of operations

WÄRTSILÄ SCRUBBER SYSTEMS

Two types of scrubber units: V-SOx and I-SOx. A full portfolio to fit any vessel..


V-SOx scrubber I-SOx scrubber

Wash water amount 45 m3/ MWh

38 m3/ MWh (0,5%)

55 m3/MWh

Max fuel S% content 3,5% - 0,1%

3,5% - 0,5%

2,5% - 0,1%

3,5% - 0,1% (alkali inj.)

3,5% - 0,5%

Integrated option Yes Yes (with connection

box)

PM removal Up to 90%

Replacing silencer Yes Yes

9

I-SOX VS V-SOX SCRUBBER

Size example: 6 MW scrubber

for one engine

• I-SOx scrubber Ø1850

10000(h) x 2240(w) x 2560(l)

• V-SOx scrubber 1#6M1

7465(h) x 2431(w) x 4013(l)


Exhaust

gas

analyser

Wärtsilä Open Loop Scrubber

10

Settlin

g tankWash

water

pump

Residence

tank

Scrubbin

g water

pump

De-plume unit

Water

measurement

Water

measurement

Exhaust gas

fan


Wärtsilä Hybrid Scrubber

11

De-plume unit

Water

measurement

Exhaust gas

fan

Heat

Exchange

r

Alkali

feed

moduleBleed-off

treatment unit

(DAF)

Buffer tank

Holding tank

Exhaust

gas

analyser

Water

measurement


Closed Loop Scrubber

12

Exhaust

gas

analyser

De-plume unit

Water

measurementWater

measurement

Exhaust gas

fan

Heat

Exchange

r

Alkali

feed

module

Bleed-

off

treatme

nt unit

Sludg

e tank

Scrubbing

water pump

Holding tank


ARE YOU READY FOR 2020?

WE ARE


INTRODUCING

WÄRTSILÄ EGC SCRUBBERS 2020- A solution to meet the global sulphur cap

• Customized solution to meet

global sulphur requirements

• Optimized water treatment system

in open loop

• Energy optimized

systems• Smallest footprint on

the market

• Global service network

• Available for all types of Wärtsilä scrubber systems• Over 200 000 running hours and counting


WATER TREATMENT IN CLOSED LOOP

15

• Small amount of bleed off is taken out of the

scrubbing water circulation and cleaned in the

BOTU (Bleed Off Treatment Unit)

• 5 years of scrubber water treatment experience

• Extensive knowledge about scrubber water

quality

• Capacity 5 m3/h (per unit)

• Very effective for the high concentrations of small

particles found in scrubber water

• Tested and validated technology

Chemical consumption

Coagulant 0,05 – 0,2 l/MWh

Flocculant 0,005 – 0,015

l/MWh

© Wärtsilä INTERNAL 23.3.2017 [Presentation name / Author]16

WATER TREATMENT IN OPEN LOOP – SIMPLE AND EFFECTIVE

• Easy and reliable technology, known in the market

• Minimal maintenance and replacement due to no moving parts

• Will remove harmful particles from discharge water, that would otherwise be released into the sea

• Benefits the environment, and in the long run, human health

• Will guarantee compliance with strict legislation, even during start-up and switch-overs


SLUDGE DEWATERING UNIT

17

To be disposed of ashore

Estimated amount:

Closed loop: 3,5 kg/MWh

Open loop: 0,1 kg/MWh

With dewatering unit:

Closed loop: 1,0 kg/MWh

Open Loop: 0,05 kg/MW


WÄRTSILÄ SCRUBBERS AND THE ENVIRONMENT

18

• Efficient scrubbing technology, removing both SOx and particulate matter

• Scrubbing changes SOx back into sulphates, which occur naturally in seawater

• Our tests show that we often get far below the set equivalent of 3,5%S down to

0,1%S. Thus removing even more sulphur oxides than required by the rules.

• Better for the environment than MGO, as it saves energy (refinery) and removes some

black carbon (PM ≤ 2.5 µm)

• Water treatment units installed on all installations – even in Open loop

• Water treatment will ensure compliance even at tricky conditions e.g. start-up.

• Water treatment will ensure that harmful heavy metals (from the engine soot) will not

be released into the environment

Clean air

Clean ocean

Clean conscience


HARMONY OF THE SEAS

The biggest cruise vessel with the biggest scrubber.

• RCCL – STX France • 15000 DWT Cruise Vessel • 22 knots cruising speed, 18 decks• 6780 guest passangers • 4 x 12V46F + 2 x 16V46F Wärtsilä engines• 2 x 35 MW scrubber with 3 inlets • Hybrid V-SOx scrubber system


Clipper Quito & Clipper Posh

The first in a series of VLGC

• Solvang – HHI • 55000 DWT LPG Tankers• 5 repeat orders from first installation• 1 x 15MW + 1 x 4MW Scrubbers (ME & AE)• V-SOx Open Loop Systems • Approx. 12000 running hours each


WILHELMSEN - THALATTA3rd scrubber installation of five for Wilhelmsen


• Wallenius Wilhelmsen / Daewoo HI

• 24000 DWT Vehicles Carrier

• 25 MW V-SOx Hybrid Scrubber system

• Combined scrubber for ME and AE’s


WÄRTSILÄ EGC SCRUBBERS - REFERENCES


Others

Trawler:

• 1 vessel

• 11 MW scrubber

Merchant

Container vessels:

• 8 vessels, 8 scrubbers, 105 MW

Tankers:


Ro-Ro:


Bulker:


LPG:


Cruise and Ferry

Cruise:

• 26 vessels

• 45 scrubbers

• 1281 MW in total

Ro-Pax:

• 14 vessels

• 37 scrubbers

• 280 MW in total

3 segments 93 installations 190 scrubbers with more than 2600 MW between them


Documents

EXHAUST GAS CLEANING SYSTEMS - Intermodal Asia...•Sulphur oxides are formed when the Sulphur in the fuel oxidizes during a combustion process. •SOx are harmful both to the environment