Title:
CORE-SHELL COMPOSITE CATALYST, PREPARATION METHOD FOR SAME, AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/022510
Kind Code:
A1
Abstract:
The present invention relates to a core-shell composite catalyst, in which the core is a spinel-structured XYaOb catalyst, where X and Y are different from each other and are selected from the second family of the periodic table of the chemical elements, the transitional elements, and the metal elements in the third family, a is a number between 1-15 and preferably a number between 1-5, and b is the number of oxygen atoms required to satisfy the valency of the elements; and the shell is a molecular sieve catalyst, preferably selected from one or more of ZSM-5, ZSM-11, ZSM-35, and MOR, and further preferably selected from ZSM-5 and ZSM-11. The core-shell composite catalyst, when used to prepare p-Xylene directly from a synthetic gas per a one-step method, not only has a simple process, is easy to operate, provides high selectivity of p-Xylene in a Xylene product and a high conversion rate of the synthetic gas, but also provides an extended catalyst service life. In addition, the present invention also relates to a preparation method for the core-shell composite catalyst and the use thereof in serving as a catalyst in the one-step preparation of p-Xylene from the synthetic gas.
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Inventors:
TAKA USHIO (CN)
TSUBAKI NORITATSU (JP)
YANG GUOHUI (JP)
TSUBAKI NORITATSU (JP)
YANG GUOHUI (JP)
Application Number:
PCT/CN2021/108678
Publication Date:
February 03, 2022
Filing Date:
July 27, 2021
Export Citation:
Assignee:
HIGHCHEM CO LTD (JP)
MOHAN CO LTD (JP)
TAKA USHIO (CN)
MOHAN CO LTD (JP)
TAKA USHIO (CN)
International Classes:
B01J23/06; B01J23/08; B01J29/40; C07C1/20; C07C15/08
Foreign References:
| CN111375444A | 2020-07-07 | |||
| CN109590019A | 2019-04-09 | |||
| US10137440B2 | 2018-11-27 | |||
| CN109590019A | 2019-04-09 |
Other References:
ZHANG PEIPEI, TAN LI, YANG GUOHUI, TSUBAKI NORITATSU: "One-pass selective conversion of syngas to para -xylene", CHEMICAL SCIENCE, vol. 8, no. 12, 1 January 2017 (2017-01-01), United Kingdom , pages 7941 - 7946, XP055896318, ISSN: 2041-6520, DOI: 10.1039/C7SC03427J
LASA ET AL.: "reported the performance of Cr-Zn/ZSM-5 catalysts for producing aromatics from syngas", IND. ENG. CHEM. RES., vol. 30, 1991, pages 1448 - 1455
LATELY, LASA ET AL.: "reported using Cr-Zn/ZSM-5 composite catalysts to produce aromatics from syngas", APPL. CATALOG. A, vol. 125, 1995, pages 81 - 98
"Catalog. Today", vol. 30, 1996, NANKAI UNIVERSITY, pages: 207 - 213
MA DINGFAN WEIBIN'S TEAM, CHEM, vol. 3, 2017, pages 323 - 333
WANG YE: "Chem", vol. 3, 2017, XIAMEN UNIVERSITY, pages: 334 - 347
LASA ET AL.: "reported the performance of Cr-Zn/ZSM-5 catalysts for producing aromatics from syngas", IND. ENG. CHEM. RES., vol. 30, 1991, pages 1448 - 1455
LATELY, LASA ET AL.: "reported using Cr-Zn/ZSM-5 composite catalysts to produce aromatics from syngas", APPL. CATALOG. A, vol. 125, 1995, pages 81 - 98
"Catalog. Today", vol. 30, 1996, NANKAI UNIVERSITY, pages: 207 - 213
MA DINGFAN WEIBIN'S TEAM, CHEM, vol. 3, 2017, pages 323 - 333
WANG YE: "Chem", vol. 3, 2017, XIAMEN UNIVERSITY, pages: 334 - 347
Attorney, Agent or Firm:
ZHONGZI LAW OFFICE (CN)
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