Title:
REGENERATION METHOD FOR BENZENE ALKYLATION SOLID ACID CATALYST
Document Type and Number:
WIPO Patent Application WO/2020/103428
Kind Code:
A1
Abstract:
A regeneration method for a benzene alkylation solid acid catalyst, comprising: purging a solid acid catalyst in a reactor by using a gas; continuously injecting n-hexane from a feed port of the reactor and heating, washing the solid acid catalyst, and discharging n-hexane carrying benzene alkylation reaction residues from a discharge port of the reactor; and stopping injecting n-hexane, purging and cleaning a liquid in the reactor by using a gas, and cooling. A regeneration liquid used in the regeneration method of the present invention is n-hexane, so that the solubility of residues in a channel can be improved, and a regeneration effect can be enhanced. Furthermore, permanent damage caused by carbon burning regeneration on a catalyst channel structure can be avoided, thereby prolonging the service life of a catalyst.
Inventors:
QIAN ZHEN (CN)
WU JINGWEI (CN)
LI JUNCHENG (CN)
ZHANG XIAOLONG (CN)
CAO HONGCHENG (CN)
GAO YUAN (CN)
WU XUETING (CN)
WU JINGWEI (CN)
LI JUNCHENG (CN)
ZHANG XIAOLONG (CN)
CAO HONGCHENG (CN)
GAO YUAN (CN)
WU XUETING (CN)
Application Number:
PCT/CN2019/090713
Publication Date:
May 28, 2020
Filing Date:
June 11, 2019
Export Citation:
Assignee:
INNER MONGOLIA YITAI COAL BASED NEW MATERIALS RES INSTITUTE CO LTD (CN)
International Classes:
B01J38/56
Domestic Patent References:
| WO2008038855A1 | 2008-04-03 |
Foreign References:
| CN1281839A | 2001-01-31 | |||
| CN1541768A | 2004-11-03 | |||
| CN1520928A | 2004-08-18 |
Other References:
See also references of EP 3778023A4
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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