The International Maritime Organization has stipulated a reduction in the maximum sulfur limit in marine fuels from 3.5% to 0.5%. In a few years, it will be mandatory for all ships across the globe to use low-sulfur fuels or gas instead of the high-sulfur fuel oil that currently dominates the market. Ship-owners will have to choose whether they want to use 0.5% sulfur fuel or scrubbing technology as an alternative. Scrubbers are exhaust gas cleaning systems that remove sulfur from fuel, thus enabling continuous use of HSFO.
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