发明名称 |
REGENERATION OF SUPPORTED CATALYSTS FOR CARBON MONOXIDE HYDROGENATION |
摘要 |
There is provided a process for renewing the activity of used, supported metal catalysts for the hydrogenation of carbon monoxide to form a mixture of hydrocarbons comprising decreasing the hydrocarbon content of the catalyst, impregnating said catalyst under an non-oxidative atmosphere with a solution at least one weak organic acid, preferably a mono- or di-carboxylic acid, to the point where it has absorbed a volume of said solution equal to at least about 10% of its calculated pore volume, oxidizing the catalyst with a gaseous oxidant in the presence of the impregnating solution and activating the catalyst by reduction with hydrogen at elevated temperatures. Optionally, the catalyst is calcined after the oxidation step, and passivated after the activation step. A preferred means of decreasing the hydrocarbon content of the catalyst is contacting it with a hydrogen-containing gas at elevated temperatures.
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申请公布号 |
WO03064033(A1) |
申请公布日期 |
2003.08.07 |
申请号 |
WO2002US41512 |
申请日期 |
2002.12.27 |
申请人 |
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY |
发明人 |
CLARK, JANET, RENEE;KOVEAL, RUSSELL, JOHN;DAAGE, MICHEL |
分类号 |
B01J23/94;B01J23/96;B01J38/00;B01J38/10;B01J38/18;B01J38/52;B01J38/56;B01J38/58;B01J38/62;B01J38/70;C07B61/00;C07C1/04;C07C7/04;C07C9/14;C10G2/00;(IPC1-7):B01J23/94 |
主分类号 |
B01J23/94 |
代理机构 |
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