Invention Grant
- Patent Title: Zoned catalytic filters for treatment of exhaust gas
- Patent Title (中): 用于废气处理的分段催化过滤器
-
Application No.: US14263337Application Date: 2014-04-28
-
Publication No.: US09242212B2Publication Date: 2016-01-26
- Inventor: Paul Richard Phillips , Guy Richard Chandler , Keith Anthony Flanagan
- 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: F01N3/00
- IPC: F01N3/00 ; B01D53/94 ; B01J29/00 ; F01N3/20 ; F01N3/035 ; B01J37/02 ; B01J37/30 ; B01J35/00 ; B01J29/76 ; B01J29/85 ; B01J35/04 ; B01J29/072 ; B01J29/46 ; B01J29/72 ; B01J29/06
Abstract:
Provided is an SCRF article having different SCR catalysts compositions disposed on a wall-flow filter substrate in zones that are arranged in series with respect to the inlet and outlet faces of the substrate. Also provided is method of reducing backpressure and ammonia slip that involves the use of such SCRF articles.
Public/Granted literature
- US20140227155A1 ZONED CATALYTIC FILTERS FOR TREATMENT OF EXHAUST GAS Public/Granted day:2014-08-14
Information query
