EGR, SCR og kombineret EGR og SO X scrubber

Transkript

1 Partnerskab for grøn skibsfart Emissionsteknologi på to-takts diesel motorer EGR, SCR og kombineret EGR og SO X scrubber Disclaimer All data provided on the following slides is for information purposes only, explicitly non-binding and subject to changes without further notice. Johan Kaltoft Senior Project Manager Emission Reduction Technology Marine Low Speed < 1 >

2 Partnerskab for grøn skibsfart Emissionsteknologi på to-takts diesel motorer 1 EGR Exhaust Gas Recirculation 2 SCR Selective Catalytic Reduction 3 Kombineret EGR og EGC (Exhaust Gas Cleaning) scrubber < 2 >

3 Tier III teknologier for reduktion af NO X SCR (Selective Catalytic Reduction) EGR (Exhaust Gas Recirculation) MAN Diesel & Turbo (NK/LDF) Seminar i Partnerskab for Grøn Skibsfart, 4. december 2013 < 3 >

4 EGR kombineret med EGC scrubber EGC scrubber (Exhaust Gas Cleaning scrubber) EGR (Exhaust Gas Recirculation) Kombination SOx reduktion NOx reduktion MAN Diesel & Turbo (NK/LDF) Seminar i Partnerskab for Grøn Skibsfart, 4. december 2013 < 4 >

5 Partnerskab for grøn skibsfart Emissionsteknologi på to-takts diesel motorer 1 EGR Exhaust Gas Recirculation 2 SCR Selective Catalytic Reduction 3 Kombineret EGR og SO X scrubber < 5 >

6 EGR System layout med T/C cut-out < 6 >

7 EGR referencer (service tests) In service Launched in march 2010 In service Launched in march 2013 Ordered Delivery in June and Sept Ordered Delivery in Dec MAN Diesel & Turbo Seminar RASA/ Dept i Partnerskab LSP for Grøn Skibsfart, 4. december 2013 < 7 >

8 Konklusioner/status Tier III compliance er dokumenteret med lave PM værdier og lille fuel penalty. Service test viser at motorkomponenter indtil videre ikke er negativt påvirket. Der er nu ordret flere kommercielle EGR motorer. < 8 >

9 Partnerskab for grøn skibsfart Emissionsteknologi på to-takts diesel motorer 1 EGR Exhaust Gas Recirculation 2 SCR Selective Catalytic Reduction 3 Kombineret EGR og SO X scrubber < 9 >

10 SCR System layout på motor V2 V1 V3 V4 < 10 >

11 Emission Technology Tier III SCR references (in service) Operator / Vessel Engine Hyundai Heavy Industry 4 x 6S50MC MCR kw 7860 Ship type & capacity 37,000 DWT Builder HHI Technology Stand alone High pressure, Upstream TC SCR Operator / Vessel Engine Nissho Shipping Co., Ltd / M/V Santa Vista 1 x 6S46MC-C MCR kw 8280 Ship type & capacity 38,000 DWT, general cargo carrier Builder Hitachi Technology Stand alone High pressure upstream TC SCR First commercial TIER III compliant SCR engine. < 11 >

12 Konklusioner/status IMO Tier III compliance er dokumenteret på en totakt diesel motor med SCR katalysator anbragt mellem motor og turbolader. Metode til at hæve temperaturen ved lav last, for at sikre god virkning af SCR katalysatoren, er udviklet. Der arbejdes fortsat med at få SCR katalysatoren integreret på selve motoren for at gøre systemet kompakt. < 12 >

13 Partnerskab for grøn skibsfart Emissionsteknologi på to-takts diesel motorer 1 EGR Exhaust Gas Recirculation 2 SCR Selective Catalytic Reduction 3 Kombineret EGR og SO X scrubber < 13 >

14 Kombineret EGR og EGC scrubber Et feasibility study støttet af Miljøstyrelsen Formålet med dette projekt har været at undersøge hvordan emissioner af NO x, SO x og partikler fra skibe med dieselmotorer kan nedbringes ved at kombinere to kendte, men væsentligt forskellige teknologier EGC scrubber (Exhaust Gas Cleaning scrubber) og EGR (Exhaust Gas Re-circulation). Del projekter: A. Retrofit of EGC scrubbers B. Engine with Integrated EGR C. Combined EGR and EGC scrubber Rapport tilgængelig på: < 14 >

15 Kombineret EGR og EGC scrubber Et projekt støttet af Miljøstyrelsen Funding by: Combined EGR and EGC scrubber Engine design Scrubber design Water Treatment System design Ship design < 15 >

16 Kombineret EGR og EGC scrubber Udvalgt skib, motor og systemer til case study 4,900 TEU vessel MAN B&W 6S80ME-C9.2 (2-stroke engine 27 MW) MAN Diesel & Turbo Exhaust Gas Recirculation (EGR) scrubber Alfa Laval PureSOx Exhaust Gas Cleaning (EGC) scrubber Alfa Laval water treatment system (WTS) for cleaning the scrubber water < 16 >

17 Kombineret EGR og EGC scrubber System layout Layout of combined EGR and EGC system without auxiliary systems. < 17 >

18 Kombineret EGR og EGC scrubber Synergieffekt på scrubber system Combined EGR/EGC system Standard system Non ECA mode Standard configuration 100% MCR 100% Flow 0% EGR EGC scrubber ECA mode Standard configuration 100% MCR 70% Flow 30% EGR EGC scrubber Combustion Combustion Charger Turbine Charger Turbine Blower Blower EGR scrubber EGR scrubber Combined EGR/EGC system Reduced exhaust system (30%) Non ECA mode Reduced configuration 70% MCR 70% Flow 0% EGR EGC scrubber ECA/Non ECA mode Reduced configuration 100% MCR 70% Flow 30% EGR EGC scrubber Combustion Combustion Charger Turbine Charger Turbine Blower Blower EGR scrubber EGR scrubber < 18 >

19 Max fuel S% Kombineret EGR og EGC scrubber Resultater If the SO 2 scrubber is designed to reduce 3.5 % sulphur fuel to 0.1% sulphur in the exhaust and is sailing outside a SO X ECA then it is possible to bypass the SO X scrubber with the excess exhaust and still stay below the limit of 0.5% sulphur; but at a certain load it is necessary to reduce the fuel sulphur content in order to stay in compliance or to use the EGR Example EGC designed for: 70 % MCR 3.5 % fuel-s 0.1 % S eq. as in ECA Engine load % Actual conditions outside ECA 95 % MCR 0.5 % S eq. 25% of the exhaust is bypassed max 1.6% S fuel < 19 >

20 Kombineret EGR og EGC scrubber Synergieffekt på WTS system The water treatment systems (WTS) for the EGR system and the EGC scrubber system can be combined. The following configurations are considered and sketched below: A. Both the EGR and EGC scrubber units are operating on FW. B. The EGR system operates on FW while the EGC scrubber unit operates on SW. C. As configuration A, but the scrubber system can operate on SW when it is acceptable to discharge the seawater, e.g. outside coastal areas. < 20 >

21 Kombineret EGR og EGC scrubber Synergieffekt på WTS system The water treatment systems (WTS) for the EGR system and the EGC scrubber system can be combined. The following configurations are considered and sketched below: A. Both the EGR and EGC scrubber units are operating on FW. B. The EGR system operates on FW while the EGC scrubber unit operates on SW. C. As configuration A, but the scrubber system can operate on SW when it is acceptable to discharge the seawater, e.g. outside coastal areas. Valgt til case study < 21 >

22 Kombineret EGR og EGC scrubber Synergieffekt på WTS system Konfiguration C med ferskvand i EGR scrubber og enten havvand eller ferskvand i EGC scrubber < 22 >

23 Kombineret EGR og EGC scrubber Resultater: anlægsarrangement EGC scrubber Two-stroke diesel engine with integrated EGR Tank for caustic soda Scrubber water circulation tank Water treatment system < 23 >

24 Mio $ Kombineret EGR og EGC scrubber Resultater: installationsomkostninger Installationsomkostninger 27 MW motor 7.0 First cost of EGR/EGC systems Installation WTS EGCS EGR Separate Combined Reduced < 24 >

25 $/year Kombineret EGR og EGC scrubber Resultater: driftsomkostninger Driftsomkostninger 27 MW motor 25,000,000 Operating cost of EGR and EGC 27 MW; 6000 hours; IMO cycle; 20% ECA share IMO fuel versus high sulphur fuel 20,000,000 15,000,000 10,000,000 5,000, %/0.5% 3.0%/3.0% IMO fuel No EGC Sulphur fuel Standard EGC Total cost 20,736,509 16,614,662 EGC cost incl SFOC penalty 0 378,239 EGR cost incl SFOC penalty 196, ,458 Fuel cost - excl SFOC penalty 20,539,875 16,007,965 < 25 >

26 Kombineret EGR og EGC scrubber Konklusioner Der er betydelige gevinster ved at kombineret EGR og EGC scrubber. EGC scrubberen kan reduceres i størrelse (ca. 30%) og WTS systemet kan simplificeres. Installationsomkostninger kan reduceres med ca. 20%. Driftsomkostninger kan reduceres med ca. 20% ved brug af HFO i stedet for IMO fuel (MGO 0,5/0,1%S). Udover NOx/SOx compliance reduceres PM med ca. 80% i forhold til en standard motor på HFO. < 26 >

27 Disclaimer All data provided in this document is non-binding. This data serves informational purposes only and is especially not guaranteed in any way. Depending on the subsequent specific individual projects, the relevant data may be subject to changes and will be assessed and determined individually for each project. This will depend on the particular characteristics of each individual project, especially specific site and operational conditions. < 27 >

28 Thank You for Your Attention Johan Kaltoft < 28 >