In Houston, The American Bureau of Shipping has released an advisory to address the technical and operational challenges of ammonia bunkering, aiding the maritime industry’s shift to this promising fuel. Green ammonia, produced from renewable sources, offers a sustainable solution with greenhouse gas (GHG) emissions up to 91% lower than gray ammonia and 85% lower than heavy fuel oil.
The 2023 revision of the International Maritime Organization’s Greenhouse Gas Strategy sets targets for a 40% reduction in CO2 emissions per transport work by 2030 and achieving net-zero GHG emissions by around 2050.
Among alternative fuels—methane, methanol, hydrogen, biofuel, and ammonia—ammonia is notable for its near or net-zero carbon emissions potential. Ammonia can be burned in engines or used in fuel cells, significantly reducing emissions of sulfur dioxide, heavy metals, and particulates.
However, challenges such as ammonia slip and NOx emissions necessitate advanced engine technology and exhaust treatment. Additionally, ammonia is highly toxic and reactive, posing significant health and safety risks and corrodes materials such as copper, brass, and zinc, necessitating the use of iron, steel, and specific non-ferrous alloys for safe handling and storage.
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Tags: ammonia, Houston, The American Bureau of Shipping
Category: Fuels
