Invention Grant
US09586177B2 Process for removing sulfur compounds from a gas with hydrogenation and direct oxidation steps 有权
用氢化和直接氧化步骤从气体中除去硫化合物的方法

  • Patent Title: Process for removing sulfur compounds from a gas with hydrogenation and direct oxidation steps
  • Patent Title (中): 用氢化和直接氧化步骤从气体中除去硫化合物的方法
  • Application No.: US14688067
    Application Date: 2015-04-16
  • Publication No.: US09586177B2
    Publication Date: 2017-03-07
  • Inventor: Benoit Mares
  • Applicant: PROSERNAT
  • Applicant Address: FR Puteaux
  • Assignee: PROSERNAT
  • Current Assignee: PROSERNAT
  • Current Assignee Address: FR Puteaux
  • Agency: Millen, White, Zelano and Branigan, P.C.
  • Priority: EP15158886 20150312
  • Main IPC: C01B17/04
  • IPC: C01B17/04 B01D53/86
Process for removing sulfur compounds from a gas with hydrogenation and direct oxidation steps
Abstract:
A process for removing sulfur from a gas containing sulfur compounds as H2S, SO2, COS, CS2 . . . , in a quantity of up to 15% wt; particularly gases emanating from the Claus process: A first hydrogenation of the sulfur compounds into H2S, the hydrogenation gas being used to regenerate a deactivated bed of oxidation catalyst, both being carried out at 200-500° C. After sulfur removal, the resulting gas undergoes a second hydrogenation step and then a direct oxidation step, said step being operated under the dew point of sulfur to trap the formed sulfur in the catalyst. In the further cycle, the gas streams are switched so as to regenerate the catalyst in run which is deactivated.
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