Invention Application
US20150190787A1 SELECTIVE CATALYTIC REDUCTION WALL FLOW FILTER INCOPORATING A VANADATE
有权
选择性催化还原壁流过滤器增加一个VANADATE
- Patent Title: SELECTIVE CATALYTIC REDUCTION WALL FLOW FILTER INCOPORATING A VANADATE
- Patent Title (中): 选择性催化还原壁流过滤器增加一个VANADATE
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Application No.: US14404763Application Date: 2013-05-31
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Publication No.: US20150190787A1Publication Date: 2015-07-09
- Inventor: Kaneshalingam Arulraj , Ralf Dotzel , Rainer Leppelt , Jorg Werner Muench , Alexandra Tsami Goodwin , Gudmund Smedler
- Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
- International Application: PCT/IB2013/001133 WO 20130531
- Main IPC: B01J23/847
- IPC: B01J23/847 ; B01J21/06 ; B01J27/24 ; B01J21/16 ; B01J21/08 ; B01D53/94 ; B01J23/30

Abstract:
A filter incorporates a catalyst for the Selective Catalytic Reduction (SCR) of NOx gases and removal of particulate matter from the exhaust gas of a lean burn combustion engine, wherein the catalyst includes a vanadate component having an alkaline earth metal, a transition metal, a rare earth metal, or combinations thereof. The vanadate component may be iron vanadate. The filter includes a supported vanadate component disposed on a wall-flow filter. The method of making the filter includes applying an aqueous mixture of the supported vanadate component as a washcoat on the wall-flow filter or extruding a composition containing the supported vanadate component. The method of treating exhaust gases from an engine includes contacting the exhaust gas with the catalyst including the vanadate component.
Public/Granted literature
- US09987619B2 Selective catalytic reduction wall flow filter incorporating a vanadate Public/Granted day:2018-06-05
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