CIMAC Working Group 17 (Gas Engines), led by Ingo Wilke and Mirko Lepel, has just released a new guideline “Alternative fuels for stationary and marine 4-stroke engines“. It provides a comprehensive overview of how alternative fuels such as hydrogen, ammonia, methanol, and ethanol can be used in modern stationary and marine gas engines. The document is aimed at customers, operators, owners and regulators who are navigating the transition toward low carbon energy solutions and need a clear, practical overview of the technical, regulatory and safety-related implications.
The guideline outlines the fundamental properties of these emerging fuels and explains how they differ from conventional fuels like natural gas. It also summarizes the evolving landscape of applicable standards and regulations, particularly in relation to the IGF Code. A major focus is placed on safety concepts, highlighting what needs to be considered when handling gaseous or low-flashpoint fuels. In addition, the publication describes the range of engine technology options, from single fuel to dual fuel operation, including retrofit opportunities that support decarbonization of existing installations. Further sections cover exhaust aftertreatment, material compatibility challenges and lubrication aspects associated with these fuels.
Overall, the new publication provides an accessible and structured entry point into a complex topic and supports all stakeholders preparing for the next phase of alternative-fuel engine technology. Anyone interested in how these fuels will shape the future of power generation and marine propulsion will find valuable insights inside.
Please download the full publication here.