Title:
SELECTIVE HYDROGENATION CATALYST FOR ALKYNES AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/016576
Kind Code:
A1
Abstract:
A selective hydrogenation catalyst for alkynes and a preparation method therefor. The catalyst contains at least the following active components: Pd and Ag. Based on the mass of a carrier being 100%, the content of Pd is 0.045-0.075%, and the content of Ag is 0.06-0.12%. The catalyst contains an organic cage, the organic cage is located on the outer surface of the catalyst, the size of the organic cage is 2.7-3.6 nm, Pd is loaded in the organic cage, and Ag is located in the middle or at the bottom of a Pd active center. When the catalyst of the present invention is applied to a selective hydrogenation process of a C2 fraction, the yield of butene can be reduced to 1/2 or below of a conventional catalyst, and the production of oxygen-containing compounds such as aldehydes is also significantly reduced.
Inventors:
TAN DUPING (CN)
XIANG YONGSHENG (CN)
ZHANG FENG (CN)
XIE YUAN (CN)
CHE CHUNXIA (CN)
HAN WEI (CN)
WEN HE (CN)
HAN YINGHONG (CN)
YANG BO (CN)
BIAN HU (CN)
XIANG YONGSHENG (CN)
ZHANG FENG (CN)
XIE YUAN (CN)
CHE CHUNXIA (CN)
HAN WEI (CN)
WEN HE (CN)
HAN YINGHONG (CN)
YANG BO (CN)
BIAN HU (CN)
Application Number:
PCT/CN2022/139263
Publication Date:
January 25, 2024
Filing Date:
December 15, 2022
Export Citation:
Assignee:
PETROCHINA CO LTD (CN)
International Classes:
B01J23/44; B01J23/50; C07C5/09; C07C7/163; C07C7/167; C07C11/04
Foreign References:
| CN101884921A | 2010-11-17 | |||
| CN112675869A | 2021-04-20 | |||
| CN110841635A | 2020-02-28 | |||
| CN114160196A | 2022-03-11 | |||
| US20180290949A1 | 2018-10-11 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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