发明名称 |
Method of restoring catalytic activity to a spent hydrotreating catalyst, the resulting restored catalyst, and a method of hydroprocessing |
摘要 |
A method of restoring catalytic activity to a spent hydroprocessing catalyst that has a first carbon concentration. The concentration of carbon on the spent hydroprocessing catalyst is reduced to provide a carbon-reduced catalyst having a second carbon concentration that is less than the first carbon concentration. The carbon-reduced catalyst is exposed to a solution, comprising a chelating agent and a solvent, for an aging time period sufficient to provide for a restored catalytic activity thereby resulting in an aged catalyst having incorporated therein the chelating agent and the solvent. The aged catalyst is exposed to conditions, including a drying temperature, so as to remove from the aged catalyst a portion of the solvent without removing a significant portion of the chelating agent from the aged catalyst thereby resulting in a dried aged catalyst. The dried aged catalyst is then sulfur treated to thereby provide a restored catalyst. The restored catalyst and those catalysts made by the treatment method can be used in a hydroprocessing process comprising contacting the restored catalyst with a hydrocarbon feedstock under hydroprocessing conditions.
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申请公布号 |
US8168557(B2) |
申请公布日期 |
2012.05.01 |
申请号 |
US20100878825 |
申请日期 |
2010.09.09 |
申请人 |
GINESTRA JOSIANE MARIE-ROSE;SEAMANS JAMES DALLAS;LEE KENNETH SCOTT;SHELL OIL COMPANY |
发明人 |
GINESTRA JOSIANE MARIE-ROSE;SEAMANS JAMES DALLAS;LEE KENNETH SCOTT |
分类号 |
B01J27/02;B01J23/00;B01J23/10;B01J23/94;B01J27/043;B01J27/047;B01J37/20;B01J38/12;B01J38/48;B01J38/66;C10G17/00;C10G19/00;C10G21/00;C10G25/00;C10G27/00;C10G29/00;C10G31/00;C10G45/04;C10G45/34;C10G45/46;C10G45/60;C10G47/02;C10G49/02 |
主分类号 |
B01J27/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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