发明名称 |
PROCESS FOR REGENERATING AND REJUVENATING ADDITIVE CONTAINING CATALYSTS |
摘要 |
The present invention pertains to a process for regenerating and rejuvenating a used additive-based catalyst comprising the steps of regenerating the catalyst by contacting it with an oxygen-containing gas at a maximum temperature of 500°C, followed by rejuvenating the catalyst by contacting it with an organic additive, if necessary followed by drying at such a temperature that at least 50 % of the additive is maintained in the catalyst. Preferably, the maximum catalyst temperature during the regeneration step is 300-500°C, more preferably 320-475°C, even more preferably 350-425°C. The process according to the invention makes it possible to restore the activity of a used additive-based hydrotreating catalyst to its original level, or even to improve it to above that level.
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申请公布号 |
CA2378400(C) |
申请公布日期 |
2010.02.09 |
申请号 |
CA20002378400 |
申请日期 |
2000.06.29 |
申请人 |
AKZO NOBEL NV;NIPPON KETJEN CO., LTD. |
发明人 |
EIJSBOUTS, SONJA;HOUTERT, FRANCISCUS WILHELMUS;JANSEN, MARCEL ADRIAAN;KAMO, TETSURO;PLANTENGA, FRANS LODEWIJK |
分类号 |
B01J38/00;B01J38/20;B01J23/94;B01J27/199;B01J27/28;B01J31/40;B01J38/12;B01J38/52;B01J38/62;C10G45/04;C10G45/08 |
主分类号 |
B01J38/00 |
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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