Invention Grant
US09011806B2 Method for treating a gas containing nitrogen oxides (NOx) using a composition comprising zirconium, cerium and niobium as a catalyst
有权
使用包含锆，铈和铌作为催化剂的组合物处理含氮氧化物（NOx）的气体的方法
- Patent Title: Method for treating a gas containing nitrogen oxides (NOx) using a composition comprising zirconium, cerium and niobium as a catalyst
- Patent Title (中): 使用包含锆，铈和铌作为催化剂的组合物处理含氮氧化物（NOx）的气体的方法
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Application No.: US14001584Application Date: 2012-02-28
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Publication No.: US09011806B2Publication Date: 2015-04-21
- Inventor: Laure Bisson , Julien Hernandez , Rui Miguel Jorge Coelho Marques , Emmanuel Rohart , Mila Bortun , Deborah Jayne Harris , Clare Jones
- Applicant: Laure Bisson , Julien Hernandez , Rui Miguel Jorge Coelho Marques , Emmanuel Rohart , Mila Bortun , Deborah Jayne Harris , Clare Jones
- Applicant Address: FR Paris GB Salford
- Assignee: Rhodia Operations,Magnesium Elektron Limited
- Current Assignee: Rhodia Operations,Magnesium Elektron Limited
- Current Assignee Address: FR Paris GB Salford
- Priority: FR1100685 20110308
- International Application: PCT/EP2012/053334 WO 20120228
- International Announcement: WO2013/037507 WO 20130321
- Main IPC: B01D53/56
- IPC: B01D53/56 ; B01D53/94 ; B01J21/06 ; B01J23/20 ; B01J37/02 ; F01N3/20 ; B01J29/06 ; B01J35/10 ; B01J37/00 ; B01J23/10 ; B01J37/04 ; B01J35/00 ; B01J29/48 ; B01J29/78 ; B01J29/85
Abstract:
The invention relates to a method for treating a gas containing nitrogen oxides (NOx), in which an NOx-reduction reaction is carried out using a nitrogen-containing reducing agent, which invention is characterized in that the catalyst used for the reduction reaction is a catalytic system containing a composition comprising zirconium, cerium and niobium in the following percentages by weight, expressed in terms of the weight of oxide: 10-50% of cerium, 5-20% of niobium and the remainder consisting of zirconium.
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