The selectivity of sulfided NiW/Al2O3 catalyst in the hydrodesulfurization of dibenzothiophene

Article abstract of DOI:10.1246/bcsj.62.3052

The hydrodesulfurization of petroleum residue is widely practiced and the need for a similar technology for coal-derived liquids is well recongnized. The selectivity of a sulfided NiW/Al₂O₃ catalyst for hydrodesulfurization has been studied at 300°C and 10.1 MPa total pressure. The presence of oxygen and sulfur compounds depressed the desulfurization of dibenzothiophene, but not the hydrogenation. The addition of large amounts of acridine improved the catalytic activity significantly for the desulfurization of dibenzothiophene to biphenyl while preventing hydrogenation.