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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