Comparative study of alumina- and carbon-supported catalysts for hydrogenolysis and hydrogenation of model compounds and coal-derived liquids

摘要: Carbon- and alumina-supported Fe, Mo, Fe-Mo, Co-Mo sulfide catalysts were compared for their ability to catalyze hydrotreating reactions such as dibenzothiophene hydrodesulfurization, quinoline hydrodenitrogenation, dibenzofuran hydrodeoxygenation, hydrogenation of butenes, naphthalene, biphenyl, coal extract. The temperature pressure varied from 653 703 K 1 300 bar H,, respectively. Below 50 H, the carbon-supported more active hydrogenolysis than aluminasupported ones. However, further increase was most effective latter catalysts. activity differences between carbon- are ascribed in phase-support interaction. Generally, iron found less molybdenum sulfide, also appeared be cobalt promoting sulfide. Fe-Mo showed higher selectivity relative hydrodesulfurization. Carboksupported (low-cost catalyst) had considerable extract hydrogenation.