Title:
PREPARATION METHOD FOR SSZ-16 COPPER-CONTAINING CATALYST
Document Type and Number:
WIPO Patent Application WO/2023/138204
Kind Code:
A1
Abstract:
A preparation method for a SSZ-16 copper-containing catalyst. In the method, a six-membered ring disubstituted quaternary ammonium salt which is used as an organic templating agent, an FAU-type silicon-aluminum molecular sieve, an alkali source, a silicon source, an aluminum source and a seed crystal are combined and are mixed uniformly in deionized water so as to form a solution, a SSZ-16 molecular sieve is hydrothermally synthesized by means of dynamic crystallization and is then dispersed in a copper salt solution, and a SSZ -16 copper-containing catalyst is obtained by means of stirring, filtering and washing, and drying and roasting. The high specific surface area and the high hydrothermal stability of the SSZ-16 copper-containing catalyst enable a material to have high NH3-SCR activity and selectivity and a long service life.
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Inventors:
LIANG KE (CN)
ZHAO JISHENG (CN)
LIANG JIAZI (CN)
ZHAO JISHENG (CN)
LIANG JIAZI (CN)
Application Number:
PCT/CN2022/133503
Publication Date:
July 27, 2023
Filing Date:
November 22, 2022
Export Citation:
Assignee:
TIANJIN PASSION ADVANCED MATERIAL TECH CO LTD (CN)
International Classes:
B01D53/56; B01J29/76; B01D53/86; B01J35/10
Domestic Patent References:
| WO2006039213A1 | 2006-04-13 |
Foreign References:
| CN106350831A | 2017-01-25 | |||
| CN114210363A | 2022-03-22 | |||
| CN111001437A | 2020-04-14 | |||
| CN106673000A | 2017-05-17 |
Other References:
CHOKKALINGAM ANAND, CHAIKITTISILP WATCHAROP, IYOKI KENTA, KEOH SYE HOE, YANABA YUTAKA, YOSHIKAWA TAKESHI, KUSAMOTO TETSURO, OKUBO : "Ultrafast synthesis of AFX-Type zeolite with enhanced activity in the selective catalytic reduction of NOx and hydrothermal stability", RSC ADVANCES, vol. 9, no. 29, 29 May 2019 (2019-05-29), pages 16790 - 16796, XP055778596, DOI: 10.1039/C9RA02787D
Attorney, Agent or Firm:
BEIJING CEMO LEADER INTELLECTUAL PROPERTY AGENCY (CN)
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