OTC Arctic Technology Conference, 7-9 February 2011, Houston, Texas, USA
Document ID: 22080-MS
Preparations Required for Switching to Ultra Low
Sulfur Diesel in Marine Propulsion and onboard Auxiliary Engines
D. Braxton Scherz, Eivind Flagstad-Andersen, and
Christian Fjell, Det Norske Veritas; Brian Ackerman, EEServe Marine LLC
Abstract
Arctic Ocean environments are quite delicate,
and shipping in Arctic regions has been very limited. While ships are the most
efficient means of cargo transport from an air quality perspective, they are
large point sources of CO2 and GHG emissions. Accordingly, local far north
Alaskan air quality requirements have called for the use of Ultra Low Sulfur
diesel (ULSD) fuels to lessen SOx emissions from engine driven main propulsion
systems and other onboard auxiliary machinery.
ULSD exceeds all current requirements for marine
diesel fuels to be burned in the proposed Emissions Control Areas worldwide. There
is a price to pay. The physical
properties of the diesel fuel are changed during the sulfur removal process. Furthermore,
end-product fuel analysis varies depending upon the sulfur content in the feed
stock, and the oil refinery used to produce ULSD. Ultra Low Sulfur Diesel is
known to have caused engine and component malfunctions due to decreased
lubricity, viscosity, and other compositional incompatibilities. This paper uses
data from a recently completed project to highlight the methodology used to
prepare a ship for the switch from Marine Gas Oil to ULSD.
Full Text Source (Subscription or Fee): http://www.onepetro.org/mslib/servlet/onepetropreview?id=OTC-22080-MS&soc=OTC
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