Title:
MOLECULAR SIEVE CU-SSZ-13, SYNTHESIS METHOD THEREFOR, CATALYST, AND USE
Document Type and Number:
WIPO Patent Application WO/2021/082139
Kind Code:
A1
Abstract:
The present application relates to the field of catalytic materials. Disclosed are a molecular sieve Cu-SSZ-13, a synthesis method therefor, a catalyst, and an application of the catalyst in the treatment of the exhaust gas of motor vehicles, especially an application in the treatment of the exhaust gas of diesel vehicles. In the molecular sieve Cu-SSZ-13, the copper content calculated on the basis of CuO is 2.56-3.69 wt%, and the non-framework aluminum content in the molecular sieve before copper is added is 0-8 wt%. The Cu-SSZ-13 of the present application has a specific combination of copper and non-framework aluminum contents, which improves the selectivity of N2 generated in the selective catalytic reduction of ammonia, reduces the selectivity of N2O, and can control the N2O in the product within 15 ppm; Cu-SSZ-13 as a catalyst has good resistance to hydrothermal aging, and has a significant performance advantage in the application of the treatment of the exhaust gas of diesel vehicles.
More Like This:
| JPS5554075 | FLY-ASH TREATMENT |
| JP2003284918 | EXHAUST GAS TREATMENT APPARATUS |
| JP2015206278 | PURIFICATION DEVICE AND PURIFICATION METHOD |
Inventors:
SONG XIBIN (CN)
ZHANG BING (CN)
ZHANG XI (CN)
ZHANG BING (CN)
ZHANG XI (CN)
Application Number:
PCT/CN2019/120866
Publication Date:
May 06, 2021
Filing Date:
November 26, 2019
Export Citation:
Assignee:
SHANDONG SINOCERA FUNCTIONAL MAT CO LTD (CN)
International Classes:
B01D53/56; B01J29/72; B01D53/94; B01J37/30
Foreign References:
| CN102802791A | 2012-11-28 | |||
| CN110078090A | 2019-08-02 | |||
| CN110316743A | 2019-10-11 | |||
| US20190224657A1 | 2019-07-25 | |||
| CN104812469A | 2015-07-29 | |||
| CN105749747A | 2016-07-13 | |||
| CN201911055296A | 2019-10-31 |
Attorney, Agent or Firm:
BEIJING JUNHUI INTELLECTUAL PROPERTY AGENT OFFICE (ORDINARY PARTNERSHIP) (CN)
Download PDF: