WÄRTSILÄ EXHAUST GAS CLEANING SYSTEM. Stian Aakre General Manager R&D. 1 Wärtsilä

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1 WÄRTSILÄ EXHAUST GAS CLEANING SYSTEM Stian Aakre General Manager R&D 1 Wärtsilä

2 BPO Environmental Seminar 5 th Mach 2014 Wärtsilä scrubber system technology options Types and amounts of waste 2 Wärtsilä This document is the property of Wärtsilä Corporation and shall not be copied or reproduced without the consent of the owner.

3 Wärtsilä scrubber system technology options Wet scrubbers Open loop Closed loop Sea water Fresh water 3 Wärtsilä This document is the property of Wärtsilä Corporation and shall not be copied or reproduced without the consent of the owner.

4 Wärtsilä scrubber system technology options Engine Exhaust Chemistry: S + O 2 SO 2 (~95%) SO / 2 O 2 SO 3 (~5%) Scrubber Chemistry: SO 2 + H 2 O H 2 SO 3 (Sulphurous Acid) SO 3 + H 2 O H 2 SO 4 (Sulphuric Acid) Seawater Reactions: CaCO 3 + H 2 SO 3 CaSO 3 + H 2 O + CO 2 2CaSO 3 + O 2 2CaSO 4 4 Wärtsilä This document is the property of Wärtsilä Corporation and shall not be copied or reproduced without the consent of the owner.

5 Wärtsilä scrubber system technology options Global merchant fleet annual HFO consumption: 300,000,000 tons Average HFO sulphur content: 2.7% Average world ocean sulphate concentration: 2700 ppm Entire world merchant fleet scrub continuously for 150 years Resulting world ocean sulphate concentration??? 2701 ppm 5 / 19 Wärtsilä Doc.ID: Revision: Status:

6 6 Wärtsilä This document is the property of Wärtsilä Corporation and shall not be copied or reproduced without the consent of the owner.

7 7 Wärtsilä This document is the property of Wärtsilä Corporation and shall not be copied or reproduced without the consent of the owner.

8 8 Wärtsilä This document is the property of Wärtsilä Corporation and shall not be copied or reproduced without the consent of the owner.

9 Scrubber technology Type III (pat.) 9 Wärtsilä This document is the property of Wärtsilä Corporation and shall not be copied or reproduced without the consent of the owner.

10 Scrubber technology Owner: Wilh. Wilhelmsen ASA Vessel: MV Tarago EGC System: Retrofit during dry-dock Operate Europe, America and Asia 1 x 25 MW 3 inlet scrubber for ME and AE 1 x 6MW 1 inlet scrubber for AE in port Hybrid system Ship in dock: Q Performance : Cleaning 3,5%S fuel down to 0,1,%S 10 Wärtsilä This December document 2012 is the property Wärtsilä of Wärtsilä Hamworthy Corporation Scrubber and shall / Stian not Aakre be copied or reproduced without the consent of the owner.

13 Scrubbing system - Hybrid 13 December 2012 Wärtsilä Hamworthy Scrubber / Stian Aakre

14 Types and amounts of waste Reductions in: SOx, NOx, PM Sludge Wash water (sulphates) ph, PAH, turbidity and temperature 14 Wärtsilä This document is the property of Wärtsilä Corporation and shall not be copied or reproduced without the consent of the owner.

15 Sludge producing units / water treatment plants Chemical/DAF-treatment systems Centrifugal separators Filtration ceramic/membranes Bioreactors Hydro cyclones/multi cyclones (open loop) 1

16 Sludge properties Pumpable (water content 75-90%) Non flammable (caloric value <0.2 MJ/kg) Naturally high on sodium (Na) and Sulphur (S) Could be high on metals like nickel (Ni) and vanadium (Va) chrome (Cr) from the fuel / lube oil / engine wear 16

17 / 19 Wärtsilä Doc.ID: Revision: Status:

18 / 19 Wärtsilä Doc.ID: Revision: Status:

19 Thank You!

WÄRTSILÄ EXHAUST GAS CLEANING. 28 October 2013 WÄRTSILÄ ENVIRONMENTAL SOLUTIONS PRODUCTS / MORTEN LETNES

WÄRTSILÄ EXHAUST GAS CLEANING. 28 October 2013 WÄRTSILÄ ENVIRONMENTAL SOLUTIONS PRODUCTS / MORTEN LETNES WÄRTSILÄ EXHAUST GAS CLEANING 1 Wärtsilä 28 October 2013 WÄRTSILÄ ENVIRONMENTAL SOLUTIONS PRODUCTS / MORTEN LETNES PIONEERING SOX SCRUBBER SYSTEMS LOWEST COST FOR MEETING MARPOL ANNEX VI REQUIREMENTS 2