Invention Grant
- Patent Title: Passive ammonia-selective catalytic reduction for NOx control in internal combustion engines
- Patent Title (中): 用于内燃机NOx控制的被动氨选择性催化还原
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Application No.: US12430825Application Date: 2009-04-27
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Publication No.: US08302379B2Publication Date: 2012-11-06
- Inventor: Kushal Narayanaswamy , Paul M. Najt , Wei Li , Kevin L. Perry , Steven J. Schmieg
- Applicant: Kushal Narayanaswamy , Paul M. Najt , Wei Li , Kevin L. Perry , Steven J. Schmieg
- 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: F01N3/00
- IPC: F01N3/00 ; F01N3/10
Abstract:
Engine exhaust gas feedstream NOx emissions aftertreatment includes a catalytic device and first and second ammonia selective catalytic reduction devices. The first and second ammonia-selective catalytic reduction devices each includes a base metal. Engine operation can be modulated to generate an engine-out exhaust gas feedstream that converts to ammonia. The ammonia is stored on the first and second ammonia selective catalytic reduction devices and used to reduce NOx emissions in the exhaust gas feedstream.
Public/Granted literature
- US20100107606A1 PASSIVE AMMONIA-SELECTIVE CATALYTIC REDUCTION FOR NOx CONTROL IN INTERNAL COMBUSTION ENGINES Public/Granted day:2010-05-06
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