It seems polluting gases come from every burned fuel. Now we find that LNG, a fuel that is reputedly cleaner than heavy diesel oil for ships, is likely to create ‘leaked methane’ around the cylinders, allowing it to escape to the open air.
Apparently there are two types of LNG engines: one with ‘tight’ cylinders, and one with ‘loose’ cylinders. The ones with loose cylinders are much cheaper to install, but also leak the methane most. It’s thought that carriers will tend to install the cheaper ones.
By Nick Savvides 06/08/2021