Post on 05-Jul-2020
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Methanol: The marine fuel of the future
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Updates from the Stena Germanica (the world's first methanol-powered ferry)
Per Stefenson, Stena Teknik
0.1 Sulphur
The Challenge - SECA Sulphur Emission
Control Area
Stena Germanica conversion of the main propulsionmachinery, 4 x Wärtsilä 8ZAL40S Totally 24.000 kW at
Remontowa shipyard, Gdansk, March 2015
The conversion in general
Ballast tank convertedto methanol fuel tank
Inert gas generator
New pump room
Double walledHigh pressure fuel pipes
Methanol bunker stationPS + SB
Stena GermanicaMethanol conversion
2013-10-12
New common rail fuel system
Engine before and after conversion
Technology: Test results
NOx 3-5 g/kWh (Low Tier II, no major conversion)
CO (< 1 g/kWh)
THC (< 1 g/kWh)
PM only from MGO pilot (FSN ~ 0,1)
SOx only from MGO pilot (99% reduction)
Formaldehyde emissions (~ below TA-luft)
No Formic acid detected in exhaust gases
No reduction in output and load response unchanged, full fuel redundancy
Higher efficiency (tests shows lower fuel consumption in methanol mode)
Methanol or MGO can be selected (or re-selected) as source of energy in a fast, simple and
reliable way without stopping the engines and without losses in engine speed and output.
Project cost Germanica conversion approx 450 kEUR/MWExpected future conversion cost 350 kEUR
What´s Next
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Methanol leads to the zero vision
20502030
CO2
emission100
%
70%
Known
technology
New technology + New
Logistics
Papermill, Piteå, SWE
BioMCN, Delfzijl, NLD
Svartsengi, ISL
Enerchem, Edmonton, CAN
Green Methanol
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