Аннотация:The development of alternative liquid fuels based on renewable and secondary carbon-containing feedstocks is of strategic importance due to increasing shortage of fossil resources and more stringent environmental requirements. This review analyzes the current state of research in the field of alternative liquid fuels for engine and power systems. The most significant achievements and limitations that hinder the extensive practical use of biofuel compositions are outlined. The nomenclature of raw materials is defined. The requirements to the main properties of the components of alternative liquid fuels are formulated. The most promising production processes are characterized. The possibility of integration of hybrid engineering solutions at existing plants is substantiated, considering multicriteria selection of components and catalysts, which opens up new prospects for the development and scaling of sustainable fuel systems. The technical, economic, and environmental features of the thermal conversion of fuels in engine and power systems are identified.