Skip to main content

 

 

STUDY REVEALS 21% GHG EMISSION REDUCTION WITH LNG

Monday, April 15, 2019 

An independent study report has revealed that Greenhouse Gas (GHG) reductions of up to 21% are achievable now from LNG as a marine fuel, compared with current oil-based marine fuels over the entire life-cycle from Well-to-Wake (WtW).

The study confirms that emissions of other local pollutants, such as sulphur oxides (SOx), nitrogen oxides (NOx) and particulate matter (PM), are close to zero when using LNG compared with current conventional oil-based marine fuels.

Commissioned by SEALNG and SGMF (Society for Gas as a Marine Fuel), the study was conducted by data and consultancy provider Thinkstep according to ISO standards. The report, which has been reviewed by a panel of independent academic experts, is claimed to provide a definitive study into GHG emissions from current marine engines.

Commenting on the report, SEALNG Chairman Peter Keller said: “The Life Cycle GHG Emission Study is a long-awaited piece of the 'LNG as a marine fuel' puzzle. It not only confirms what we already knew in terms of LNG’s immediate impact on air quality, human health and its cleanliness, but clearly highlights the genuine, substantiated GHG benefits of using today’s marine engines capable of burning natural gas. Moving from current Heavy Fuel Oil (HFO) to LNG does reduce GHG emissions. LNG does contribute to the International Maritime Organisation (IMO) GHG reduction targets. And it is clear that LNG is the most environmentally-friendly marine fuel that is readily available and safe, both today and in the foreseeable future.”

On an engine technology basis, the absolute WtW emissions reduction benefits for LNG-fuelled engines compared with HFO fuelled ships today are between 14% to 21% for two-stroke slow speed engines and between 7% to 15% for four-stroke medium speed engines. 72% of the marine fuel consumed today is by two-stroke engines with a further 18% used by four-stroke medium speed engines.

Study partner Chad Verret, SGMF Board Chairman, added: “LNG is safe to use, fully compliant and readily available as a marine transport fuel. With the world LNG Bunker Vessel fleet doubling in the next 18 months and those vessels being deployed at major bunkering hubs, LNG as a ship fuel is rapidly becoming readily available.”

SEALNG adds that bioLNG and Synthetic LNG – both fully interchangeable with LNG derived from fossil feedstock – offer the potential for significant additional GHG emissions reductions.  For example, a blend of 20% bioLNG as a drop-in fuel can reduce GHG emissions by a further 13% when compared to 100% fossil fuel LNG.

Dr Oliver Schuller, Team Lead Energy & Mobility at Thinkstep stated: “The main goal of this study was to provide an accurate report of the life-cycle GHG emissions from LNG as a marine fuel compared with conventional marine fuels.”

The full Well-to-Wake GHG Emissions Lifecycle Study can be accessed here.

Reader Comments (0)

There are currently no comments on this article. Why not be the first and leave your thoughts below.

Leave Your Comment

Please keep your comment on topic, any inappropriate comments may be removed.

Return to index

Web Analytics