WG 5 Guideline: Alternative fuels emission control for large combustion engines

This CIMAC guideline explores the emission-related implications of transitioning to alternative fuels in large combustion engines. It provides a structured overview of fuel types such as hydrogen, ammonia, methanol, methane, and synthetic diesel alternatives, examining their properties, production pathways, and safety considerations. A key focus is placed on how different fuels and combustion concepts influence pollutant emissions and the effectiveness of existing and potential emission control technologies. The document outlines current and emerging solutions for managing emissions like NOâ‚“, methane slip, particulate matter, and other pollutants, while also addressing future drivers for cleaner engine operation. It serves as a technical foundation for stakeholders aiming to reduce climate and air quality impacts through informed fuel and technology choices while benefitting from the high efficiency and reliability of large combustion engines.