Ruthenium sulfide based catalysts

This papers deals with the use of ruthenium sulfide based catalysts in the hydrotreating process. The authors give an overview of the studies they have carried out in their laboratory concerning : the characterization of active sites and the nature of adsorbed hydrogen species, the properties of ruthenium sulfide supported on alumina or dispersed in zeolite, the ability to form solid solutions either in the supported or unsupported state.