发明授权
- 专利标题: Production of low sulfur distillates
- 专利标题(中): 生产低硫馏分
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申请号: US09553107申请日: 2000-04-20
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公开(公告)号: US07435335B1公开(公告)日: 2008-10-14
- 发明人: Edward S. Ellis , William E. Lewis , Larry L. Iaccino , Michele S. Touvelle , Gordon F. Stuntz
- 申请人: Edward S. Ellis , William E. Lewis , Larry L. Iaccino , Michele S. Touvelle , Gordon F. Stuntz
- 申请人地址: US NJ Annandale
- 专利权人: ExxonMobil Research and Engineering Company
- 当前专利权人: ExxonMobil Research and Engineering Company
- 当前专利权人地址: US NJ Annandale
- 代理商 Gerard J. Hughes; Lawrence E. Carter
- 主分类号: C10G45/00
- IPC分类号: C10G45/00 ; C10G45/44
摘要:
A process for hydroprocessing a distillate stream to produce a stream exceptionally low in sulfur, with total aromatics and polynuclear aromatics being moderately reduced. A distillate stream is hydrodesulfurized in a first hydrodesulfurization stage. The product stream thereof is passed to a first separation stage wherein a vapor phase product stream and a liquid product stream are produced. The liquid phase product stream is passed to a second hydrodesulfurization stage and the product stream thereof is passed to a second separation stage wherein a vapor phase product stream and a liquid product stream low in sulfur are produced. At least a portion of the vapor product stream from said second separation stage can be cascaded to the first hydrodesulfurization stage.