PureSO x. Exhaust gas cleaning. For more information please contact:

Transcription

1 PureSO x Exhaust gas cleaning For more information please contact: rene.diks@alfalaval.com

2 SO x Emission Control Areas (ECAs) ASource: IMO (MARPOL Annex VI Fuel Sulphur Limits) Alfa Laval Slide 2

3 MEPC.184(59) Emission limits according to the Guidelines SOx (ECA) Before 2015: 43 ppm SO 2 /% CO 2 After 2015: 4.3 ppm SO 2 /% CO 2 Turbidity: PAH: ph: Alfa Laval Slide 3 25 FNU or NTU above inlet 50 µg/l above inlet (water flow depend.) Inlet vs. outlet: ph 2 Ref. outlet ph: ph 6.5 at 4 m from discharge

4 Impact on Sea Water emissions Sea water Sea salts Sulfates Sulfates are harmless to the environment and a natural constituent in seawater and organisms. Water 96,5% Chloride 55.0% Sodium 30.6% Burning all known oil reserves in the world the sulphate increase would be difficult to measure. Sulfate 7.7% Salt 3,5% 3.7% 1.2% 1.1% 0.7% Magnesium Calcium Potassium Minor constituents

5 PureSO x, How does it work?

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7 Customer benefits The hybrid system Running on SW at open sea whenever possible (lowest costs, ease of operation) Zero discharge whenever required (ports, estuaries, sensitive area s) Ability to cope with low alkalinity waters (Baltic, estuaries, rivers) Lowest possible NaOH consumption No switching between MGO/HFO -> maximum fuel savings Maximum flexibility

8 Multiple inlet systems Combinations of ME + AUX Less space required Lower investment costs Other configurations possible

9 PureSO X Water Cleaning Minimized sludge generation Simple one step process Instant bleed-off Effective removal of particles Engine power (MW) Footprint (m 2 ) Electric power (kw, nominal) 0-8 2,5 x 2, ,5 x 2, ,5 x 2, ,0 x 3, ,0 x 3,0 90

10 References

11 Single inlet system Technical data: System type Installation Ship owner Engine Total Power output Height Length Diameter Weight empty Weight with water Exhaust gas Material Hybrid Retrofit DFDS Seaways 1 ME 21 MW 10.5 Meters 8.2 Meters 4.6 Meters 24T 32T 192,000 Kg/h SS alloys

12 Single inlet system DFDS Jet scrubber 2 Absorber 3 Circulation tank 4 Circulation pump 5 Plate heat exchanger 6 Caustic soda tank 7 Water cleaning unit 8 Sludge tank

13 Multiple inlet system Technical data: System type Installation Ship owner Engines Total Power output Height Length Diameter Weight empty Weight with water Exhaust gas Material Hybrid Retrofit Spliethoff 2 ME + 2 AE 28 MW 9.3 Meters 8.5 Meters 4.7 Meters 20T 28T 216,000 Kg/h SS alloys

14 Technical data Plyca Technical data Year built 2009 Length 205 meters Width 26 meters Gross tonnage mt Deadweight mt 2x ME Wärtsilä 12V46C (12.6 MW) 2x AE Wärtsilä 8L20 (1.36 MW) Classification LRS

15 Spliethoff configuration Alfa Laval Slide 15

16 SW mode Discharge water analysis PureSO x Measured by COWI consulting on request from the Danish EPA Sea water inlet 2.2% S High load 2.2 % S Low load Fuel consumption kg/h Water flow m 3 /h ph Suspended solids (SS) COD Sulphur (tot-s) Nitrogen (tot-n) mg/l mg/l mg/l mg/l Turbidity (on-line analyser) FNU 8 5 Metals µg/l Total hydrocarbons (THC) Sum, benzene - C35 µg/l N/A PAH, samples /lab (16 USEPA ) - hereof naphthalene µg/l µg/l N/A N/A Turbidity 25 FNU or NTU above inlet PAH: 50 45m3/MW/h ph: Inlet vs. outlet: ph 2 Ref. outlet ph: ph 6.5 at 4 m Slide 16

17 Fresh water cleaning Design by Alfa Laval Wet sludge 80% water / 20% solid Results are parameter depending Sludge amount in liquid form less than 2.5 liter per MWh engine output

18 Sludge quantities Container feeder, 8 MW Engine Hybrid operation: SW operation 5000 hour 70% MCR, seagoing FW operation 500 hour 30% MCR, manouvering Total sludge per year 0.84 m 3 (100% FW = 21 m 3 )

19 Conclusions PureSO x 40 years of scrubbing experience from flue gas installations Maximum cost savings (100% running on HFO) Maximum flexibility (hybrid system) Full product portfolio (hybrid/sea water/fresh water) Largest scrubber installed on Ficaria Seaways (21 MW MAN B&W) Short pay back time 1-2 years Global sales & service network

20 26 months and 6 days left The clock is ticking..