LNT and SCR catalysts for combined LNT-SCR applica

专利名称：LNT and SCR catalysts for combined LNT-SCR applications

发明人：Albert N. Chigapov,Robert Ukropec,Brendan

Patrick Carberry

申请号：US13358708申请日：20120126公开号：US095976B2公开日：20170321

专利附图：

摘要：The current invention refers to the LNT and the SCR catalysts designed forcombined LNT-SCR applications. LNT catalysts are based on proton-conducting oxides of

fluorite structure, namely Ca (Sr)—La—Ce (Zr, Pr) mixed oxides in which up to 40 mol-%of lanthanum is replaced by calcium and/or strontium, and up to 66 mol-% of cerium isreplaced by zirconium and/or praseodymium, further combined with Pt—Pd or Pt—Pd—Rh precious metal components. SCR catalysts are Cu/zeolite modified by citratetreatment or Cu—Ce, Mn—Ce or Co—Ce/modified zeolite.

申请人：Albert N. Chigapov,Robert Ukropec,Brendan Patrick Carberry,Nina Shishkina

地址：Aachen DE,Aachen DE,Aachen DE,Krasnoyarsk RU

国籍：DE,DE,DE,RU

代理人：Julia Voutyras,John D. Russell,B. Anna McCoy

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