Invention Grant
- Patent Title: Zeolite promoted silver based catalyst for NOx storage
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Application No.: US14559983Application Date: 2014-12-04
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Publication No.: US09597635B2Publication Date: 2017-03-21
- Inventor: Gongshin Qi , Steven J. Schmieg , Shouxian Ren , Wei Li
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Main IPC: B01D50/00
- IPC: B01D50/00 ; B01D53/94 ; B01J29/12 ; F01N3/08 ; F01N3/021 ; F01N13/00
Abstract:
An aftertreatment system utilizes chemical reactions to treat an exhaust gas flow. A device for use within an aftertreatment system includes a silver-based NOx storage catalyst and a zeolite. The silver-based NOx storage catalyst and the zeolite store NOx through a low temperature startup period of operation. In one embodiment, the zeolite includes a barium Y zeolite.
Public/Granted literature
- US20160158700A1 ZEOLITE PROMOTED SILVER BASED CATALYST FOR NOx STORAGE Public/Granted day:2016-06-09
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