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Life cycle GHG emission study shows 23% GHG reductions from LNG as a marine fuel

Human activities since the beginning of the Industrial Revolution have produced a 45% increase in the atmospheric concentration of carbon dioxide, from 280 ppm in 1750 to 415 ppm in 2019

Life cycle GHG emission study shows 23% GHG reductions from LNG as a marine fuel

Moscow, May 18 - Neftegaz.RU. An updated Life Cycle GHG Emission Study on the Use of LNG as a Marine Fuel has shown that greenhouse gas (GHG) reductions of up to 23% are achievable now from LNG, compared with current oil-based marine fuels over the entire life cycle from Well-to-Wake.

The study, commissioned by industry organizations SEA-LNG and SGMF, was conducted by Sphera and peer-reviewed by a panel of independent academic experts.

It found that, in addition to the considerable air quality benefits it delivers, LNG could «beyond question» contribute significantly to the International Maritime Organization’s (IMO) GHG reduction targets.

On an engine technology basis, the Well-to-Wake GHG emissions reduction benefits are:
  • between 14% to 23% for 2-stroke slow-speed engines
  • and between 6% to 14% for 4-stroke medium-speed engines compared with oil-fueled engines
The study forecasts that, by 2030, 2-stroke engines using LNG will offer GHG benefits of up to 24%, 4-stroke engines of up to 22%, and technological improvements will significantly reduce and minimize methane emissions.

Methane emissions from the supply chains as well as methane released during the onboard combustion process (methane slip) have been included in the analysis.

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