Invention Grant
- Patent Title: Ammonia slip catalyst with in-situ PT fixing
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Application No.: US17301109Application Date: 2021-03-25
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Publication No.: US11712685B2Publication Date: 2023-08-01
- Inventor: Yannick Bidal , Hai-Ying Chen , Joseph Fedeyko , Neil Greenham , Matthew Harris , Jing Lu
- Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
- Applicant Address: GB London
- Assignee: Johnson Matthey Public Limited Company
- Current Assignee: Johnson Matthey Public Limited Company
- Current Assignee Address: GB London
- Main IPC: B01D53/94
- IPC: B01D53/94 ; B01J29/76 ; B01J29/44 ; B01J29/78 ; B01J29/80 ; B01J35/10 ; B01J37/02 ; F01N3/20 ; F01N3/28
Abstract:
The invention relates to a catalytic article comprising a substrate having an inlet and an outlet; a first coating comprising a blend of: (1) platinum on a support, and (2) a first SCR catalyst comprising a Cu- and Mn-exchanged molecular sieve; and a second coating comprising a second SCR catalyst; wherein the support comprises at least one of a zeolite or a SiO2-Al2O3 mixed oxide. The platinum may be fixed on the support in solution.
Public/Granted literature
- US20210299643A1 AMMONIA SLIP CATALYST WITH IN-SITU PT FIXING Public/Granted day:2021-09-30
Information query
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