Invention Grant
- Patent Title: Method for preventing a selective catalytic reduction (SCR) catalyst from being contaminated with platinum
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Application No.: US16061494Application Date: 2016-12-16
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Publication No.: US10968802B2Publication Date: 2021-04-06
- Inventor: Christoph Hengst , Marco Lopez
- Applicant: UMICORE AG & CO. KG
- Applicant Address: DE Hanau-Wolfgang
- Assignee: UMICORE AG & CO. KG
- Current Assignee: UMICORE AG & CO. KG
- Current Assignee Address: DE Hanau-Wolfgang
- Agency: Smith, Gambrell & Russell, LLP
- Priority: DE102015225579.4 20151217
- International Application: PCT/EP2016/081334 WO 20161216
- International Announcement: WO2017/103040 WO 20170622
- Main IPC: F01N3/035
- IPC: F01N3/035 ; F01N3/20 ; B01J23/42
Abstract:
The present invention relates to a method for preventing an SCR catalyst from being contaminated with platinum group metal in an emission control system comprising, upstream of the SCR catalyst, a catalyst that contains platinum group metal, characterized in that a material zone containing a mixture of aluminum oxide and cerium oxide is located upstream of the SCR catalyst.
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