• 专利标题:   Hydrodesulfurization catalyst used to desulfurize hydrocarbon feedstock comprising sulfur-containing compound, comprises catalyst support comprising zeolite doped with graphene material, molybdenum and promoter comprising cobalt and nickel.
  • 专利号:   US2021024436-A1, US11124465-B2
  • 发明人:   AWADH T A S, ELSAYED I A
  • 专利权人:   UNIV DHAHRAN KING FAHD PETROLEUM MINER
  • 国际专利分类:   B01J021/18, B01J029/16, B01J035/10, B01J037/00, B01J037/02, B01J037/08, C07C001/32, C10G049/04
  • 专利详细信息:   US2021024436-A1 28 Jan 2021 C07C-001/32 202113 Pages: 46 English
  • 申请详细信息:   US2021024436-A1 US521229 24 Jul 2019
  • 优先权号:   US521229

▎ 摘  要

NOVELTY - Hydrodesulfurization catalyst comprises a catalyst support comprising a zeolite doped with 0.1-0.5 wt.% of a graphene material, based on a total weight of the catalyst support, 5-20 wt.% of molybdenum, based on a total weight of the hydrodesulfurization catalyst and 1-6 wt.% of a promoter comprising cobalt and nickel, based on a total weight of the hydrodesulfurization catalyst, where the molybdenum and the promoter are homogeneously disposed on the catalyst support. USE - The hydrodesulfurization catalyst is useful for desulfurizing a hydrocarbon feedstock comprising a sulfur-containing compound (claimed). ADVANTAGE - The hydrodesulfurization catalyst: utilizes the Y-type zeolites that exhibits high thermal stability and high hydrothermal stability, hence stable; utilizes the graphene material that exhibits enhanced activity of the hydrodesulthrization catalyst by increasing e.g. the surface area, pore size, pore volume and hierarchy factor, hence effective and efficient; exhibits improved dispersion of the catalytic metals over the catalyst support, thus resulting in the efficient removal of sulfur from hydrocarbon feedstocks; and is free of metal carbides and metal nitrides. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) producing the hydrodesulfurization catalyst, comprising impregnating the catalyst support by adding an aqueous solution comprising a molybdenum salt and either a cobalt salt or a nickel salt to a suspension of the catalyst support in water to form a catalyst mixture, filtering the catalyst mixture to obtain a wet catalyst, and drying and calcining the wet catalyst thus producing the hydrodesulfurization catalyst; and (2) desulfurizing a hydrocarbon feedstock comprising a sulfur-containing compound, comprising contacting the hydrocarbon feedstock with the hydrodesulfurization catalyst in the presence of hydrogen gas to convert at least a portion of the sulfur-containing compound into a mixture of hydrogen sulfide and a desulfurized product, and removing the hydrogen sulfide from the mixture thus forming a desulfurized hydrocarbon stream.