发明名称 |
Process for the selective hydrogenation and hydrodesulferization of a pyrolysis gasoline feedstock |
摘要 |
Disclosed is a process for the selective hydrogenation of diolefins and sulfur compounds that are contained in a pyrolysis gasoline feedstream. The process includes utilizing a single hydrotreating reaction stage by introducing the pyrolysis gasoline feedstock that includes a diolefin concentration and an organic sulfur concentration into a reactor that is loaded with a high activity hydrotreating catalyst and which is operated under selective hydrogenation conditions. A reactor effluent having a reduced diolefin concentration and a reduced organic sulfur concentration is yielded from the reactor and is separated into a portion that is recycled as a reactor feed. The remaining portion of the reactor effluent is passed downstream for further processing or handling. |
申请公布号 |
US9260670(B2) |
申请公布日期 |
2016.02.16 |
申请号 |
US201013376531 |
申请日期 |
2010.06.09 |
申请人 |
Shell Oil Company |
发明人 |
Grenoble Dane Clark;Himelfarb Paul Benjerman;Treybig Michael Norris;Vanderwilp Brian Scott |
分类号 |
C07C7/163;C10G45/32;C10G45/02;C10G69/06 |
主分类号 |
C07C7/163 |
代理机构 |
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代理人 |
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主权项 |
1. A process for the selective hydrogenation of diolefins and sulphur compounds contained in a pyrolysis gasoline feedstock, comprising a diolefin concentration exceeding 3 wt % and an organic sulfur concentration exceeding 50 ppmw, wherein said process comprises:
introducing a hydrocarbon stream that comprises said pyrolysis gasoline feedstock into a reactor that contains a single hydrotreating reaction stage comprising hydrotreating catalyst and operated at selective hydrogenation conditions, wherein said hydrocarbon stream is contacted with said hydrotreating catalyst; yielding from said reactor a reactor effluent comprising a reduced diolefin concentration of less than 10 ppmw, a reduced organic sulfur concentration of less than 3 ppmw, and an aromatics content of at least 90 wt % of a reactor inlet aromatics content; separating said reactor effluent into a portion of said reactor effluent and a remaining portion of said reactor effluent; and introducing as a recycle said portion of said reactor effluent into said reactor wherein the weight ratio of said recycle to said hydrocarbon stream is greater than 1:1. |
地址 |
Houston TX US |