1. No category

Sox Emissions
abatement
A SMALL SOLUTION TO A BIG CHALLENGE
Introduction - German Shipowners
– Green Tech Marine
– Technology
– References
Green Tech Marine AS, Drammensvn. 134, 0277 Oslo, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com
Introduction - German Shipowners
– Green Tech Marine
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100% focused on scrubbers
Management, Sales and R&D in Norway
Engineering in Sweden
Cooperates closely with Yara Environmental Technologies
(YET - NOx emissions abatement – SCR & SNCR)
– Part of Yara group,
• approx. 10 000 employees
• approx. 11 000 MEUR turnover
• listed on Oslo stock exchange
Green Tech Marine AS, Drammensvn. 134, 0277 Oslo, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com
Green Tech Marine - Scrubber
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Inline design
Compact wet scrubber
Open loop
Hybrid
– Closed loop
– Open loop
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Replaces silencer
Dry running
Small footprint and low weight
Zero discharge in closed loop mode
Eminently suited also for retrofit
No caustic soda - MgO as alkali
Green Tech Marine AS, Drammensvn. 134, 0277 Oslo, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com
Green Tech Marine - Scrubber
Green Tech Marine AS, Drammensvn. 134, 0277 Oslo, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com
Liberty of the Seas Pilot installation 2011-2012
Green Tech Marine AS, Drammensvn. 134, 0277 Oslo, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com
Liberty of the Seas Pilot installation 2011-2012
• Scrubber installed on Main Engine #1 – 12,6 MW
• Silencer was replaced by Scrubber
• Installation done without taking the ship out of
service and with no inconvenience to the
passengers, about 4 months
• No passenger or crew space lost due to installation
• Result: 99,7% SOx removal and vessel is compliant
with the 0,1% sulphur limit in ECAs
Green Tech Marine AS, Drammensvn. 134, 0277 Oslo, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com
Liberty of the Seas Pilot installation 2011-2012
Green Tech Marine AS, Drammensvn. 134, 0277 Oslo, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com
Liberty of the Seas Pilot installation 2011-2012
• Certificates
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Statement of compliance
DNV certificate MED-G 1728
DNV Certificate of conformity
EPA and US coastguard approval
Flag state approval, Bahamas
Flag state approval, Malta
Green Tech Marine AS, Drammensvn. 134, 0277 Oslo, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com
Liberty of the Seas Pilot installation 2011-2012
TECHNOLOGY QUALIFICATION
• Nuts and bolts
• Statement of endorsement
• HAZID
– Hasard identification study
• FMECA
– Failuremode effects and criticality analysis
Now accrued >7000 operating hrs OK
Green Tech Marine AS, Drammensvn. 134, 0277 Oslo, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com
2 x Break Away Plus 2014
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In total 10 scrubbers
2 x14 MW and 3x16 MW
5 per vessel
Open loop
Green Tech Marine AS, Drammensvn. 134, 0277 Oslo, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com
From recent installation
Green Tech Marine AS, Drammensvn. 134, 0277 Oslo, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com
Norwegian Cruise Lines
• Another 28 Scrubbers to be delivered till 2016
– Hybrid systems
– Retrofits in dry dock
– 6 VESSELS
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Norwegian Jewel
Norwegian Breakaway
Norwegian Dawn
Norwegian Gem
Norwegian Pearl
Norwegian Sun
Green Tech Marine AS, Drammensvn. 134, 0277 Oslo, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com
Non dislosed clients
• 18 scrubbers for Ropax
– Open loop
– Retrofits in dry-dock
– Installation 2014-15
• 6 Scrubbers for Cargo
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Hybrids
3 single stream
3 Multi stream
Installation end 2015
Green Tech Marine AS, Drammensvn. 134, 0277 Oslo, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com
Lessons learned
Incident
Corrective action
Corrosion (tower)
Changed material
Vane guide welding failure
Pressure relief feature in design
Improved welding inspection
CEMS sampling blocked
Changed to optical system
CEMS inaccuracy
Implemented purge air feature
Corrected calibration procedure
SW Pump cavitation
Redesigned suction inlet
MgO Dosing pump failure
Changed O-rings
Changed mixing unit design
Turbidity meas. errors
Redesigned sampling system
Green Tech Marine AS, Drammensvn. 134, 0277 Oslo, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com
Scrubber Material Selection
Temp. bottom
part when
scrubbing appr.
45 deg C
VDM alloy 926
= 6%Mo Steel
VDM alloy C-276 = Hastelloy C276
Green Tech Marine AS, Drammensvn. 134, 0277 Oslo, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com
Scrubber illustration
Main Engine 29 MW / 2 stroke - Scrubber Tower:
Approx 3,7x17m , weight approx 16 tons
3xAUX Engine each 1,7MW / 4 stroke -
Scrubber tower:
Approx. 2x14m, weight approx. 6,3 tons
2xAUX Engine each 1,3MW / 4 stroke - Scrubber tower:
Approx. 1,6x11,5m, weight approx 5 tons
Green Tech Marine AS, Drammensvn. 134, 0277 Oslo, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com
Thank you!
Green Tech Marine AS, Lundeveien 171 4550 FARSUND, Norway, Phone: +47 40 00 99 70, info@greentechmarine.com