Invention Grant
- Patent Title: Selective catalytic reduction (SCR) system for NOx storage
- Patent Title (中): 用于NOx储存的选择性催化还原(SCR)系统
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Application No.: US13327291Application Date: 2011-12-15
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Publication No.: US08813478B2Publication Date: 2014-08-26
- Inventor: Eugene V. Gonze , Michael J. Paratore, Jr. , Chang H. Kim , Steven J. Schmieg
- Applicant: Eugene V. Gonze , Michael J. Paratore, Jr. , Chang H. Kim , 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
- Agency: Cantor Colburn LLP
- Main IPC: F01N3/00
- IPC: F01N3/00

Abstract:
An exhaust gas treatment system for an internal combustion engine is provided, including an exhaust gas conduit, a flow-through container of absorbent particles, an electrically heated catalyst (“EHC”) device, a selective catalytic reduction (“SCR”) device, and a control module. The exhaust gas conduit is in fluid communication with, and is configured to receive an exhaust gas from the internal combustion engine. The exhaust gas contains oxides of nitrogen (“NOx”) and water. The flow-through container of absorbent particles is in fluid communication with the exhaust gas conduit and configured to receive the exhaust gas. The flow-through container substantially adsorbs the water from the exhaust gas below a threshold temperature. The EHC device is in fluid communication with the exhaust gas conduit and is configured to receive the exhaust gas. The EHC device is located downstream of the flow through container, and is selectively activated to produce heat.
Public/Granted literature
- US20130152553A1 Selective Catalytic Reduction (SCR) System For NOx Storage Public/Granted day:2013-06-20
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