What Role Does Catalysis Play in Ultra Deep Desulfurization?
Catalysis is at the heart of ultra deep desulfurization processes. Conventional hydrodesulfurization (HDS) uses transition metal catalysts such as molybdenum or tungsten promoted with cobalt or nickel, supported on alumina. These catalysts facilitate the cleavage of C-S bonds in sulfur compounds in the presence of hydrogen. However, to achieve ultra low sulfur levels, advanced catalytic systems and novel approaches are being developed.