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Research on Safety Risks Analysis and Protective Measures of Ammonia as Marine Fuel

According to International Maritime Organization (IMO) requirements of greenhouse gas emission reduction, the application of zero-carbon fuel in ships is imperative, and ammonia as fuel is considered to be one of the best choices. However, the application of ammonia fuel is limited because of the safety risk of ammonia, especially its toxicity. Therefore, considering the liquid ammonia has been widely used in industry, this paper analyzes the safety requirements and protective measures for ammonia as marine fuel from the design point of view, aiming at the risks of ammonia and according to the existing requirements of relevant regulations in cargo, refrigeration and Selective Catalytic Reduction (SCR) systems, and puts forward suggestions for the safety protection of marine ammonia fuel. It also provides reference and support for the design and application of ammonia fuel powered ship.