Title:
SELECTIVE HYDROGENATION CATALYST SYSTEM, ITS PREPARATION AND USAGE
Document Type and Number:
WIPO Patent Application WO/2001/003829
Kind Code:
A1
Abstract:
The present invention relates to a selective hydrogenation catalyst, its preparation and usage. The catalyst of the present invention comprises a support, a palladium-containing catalyst component and a bismuth-containing catalyst component. The catalyst system of the present invention is prepared by co-impregnating or multi-impregnating the support with a palladium-containing solution, a bismuth-containing solution and/or other cocatalysts components, and the impregnated support is dried and then calcined. The catalyst system of the present invention has significantly improved activity and selectivity over the catalyst of the prior art in the selective hydrogenation process of alkyne or diolefin, and it can also reduce the formation amount of green oil, decrease the amount of coke deposit on the catalyst, prolong the catalyst life time, and reduce the production cost.
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Inventors:
DAI WEI
ZHU JING
LI HELONG
GUO YANLAI
MU WEI
PENG HUI
CHEN XIN
ZHU JING
LI HELONG
GUO YANLAI
MU WEI
PENG HUI
CHEN XIN
Application Number:
PCT/CN2000/000176
Publication Date:
January 18, 2001
Filing Date:
June 26, 2000
Export Citation:
Assignee:
CHINA PETROCHEMICAL CORP (CN)
BEIJING RES INST CHEM IND (CN)
BEIJING RES INST CHEM IND (CN)
International Classes:
B01J23/644; C10G45/40; (IPC1-7): B01J23/644; B01J23/68; C10G45/40
Domestic Patent References:
| WO1998037966A1 | 1998-09-03 |
Foreign References:
| EP0839573A1 | 1998-05-06 | |||
| EP0686615A1 | 1995-12-13 | |||
| DE2849026A1 | 1980-05-22 | |||
| FR2228748A1 | 1974-12-06 | |||
| EP0064301A1 | 1982-11-10 |
Attorney, Agent or Firm:
CCPIT Patent and Trademark Law Office (8th Floor 2 Fuchengmenwai St. Beijing 7, CN)
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