Invention Grant
- Patent Title: Zoned catalyst for treating exhaust gas
- Patent Title (中): 用于处理废气的分区催化剂
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Application No.: US14826238Application Date: 2015-08-14
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Publication No.: US09579603B2Publication Date: 2017-02-28
- Inventor: Olivier Sonntag , Tim Genschow , Andrew Newman , Isabel Zoe Tingay , Gudmund Smedler
- 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
- Agent Gary D. Mangels
- Main IPC: B01D53/94
- IPC: B01D53/94 ; F01N3/20 ; B01J35/00 ; B01J21/06 ; B01J23/22 ; B01D53/86 ; B01J29/072 ; B01J29/76 ; B01J29/56 ; B01J35/04 ; F01N3/10
Abstract:
Provided is a system for treating an exhaust gas comprising a first SCR catalyst zone comprising vanadium loaded on a metal oxide selected from TiO2, ZrO2, SiO2, CeO2, and Al2O3; and a second SCR catalyst zone comprising a copper loaded small-pore molecular sieve, wherein the first SCR catalyst zone is disposed upstream of the second SCR catalyst zone with respect to normal exhaust gas flow through the system. Also provided is a method for using the system to treat exhaust gas.
Public/Granted literature
- US20160045868A1 Zoned Catalyst for Treating Exhaust Gas Public/Granted day:2016-02-18
Information query
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