公开(公告)号：US11298656B2

公开(公告)日：2022-04-12

申请号：US16304511

申请日：2017-06-02

Applicant: BASF Corporation

Inventor： Mathias Feyen ,  Ulrich Mueller ,  Faruk Oezkirim ,  Stefan Dumser ,  Natalia Trukhan ,  Michaela Maltry ,  Stefan Maurer

IPC: B01J29/80 ,  B01D53/94 ,  B01J37/30 ,  B01D53/56 ,  B01J29/76 ,  C01B39/02 ,  B01J35/00 ,  B01D53/60

Abstract: A catalyst for the selective catalytic reduction of NOx comprises a zeolitic material which comprises (A) one or more zeolites having a GME framework structure containing YO2 and X2O3, and optionally further comprises one or more zeolites having a CHA framework structure containing YO2 and X2O3, and/or comprises, (B) one or more zeolite intergrowth phases of one or more zeolites having a GME framework structure containing YO2 and X2O3 and one or more zeolites having a CHA framework structure containing YO2 and X2O3, wherein Y is a tetravalent element, and X is a trivalent element, and the zeolitic material contains Cu and/or Fe as non-framework elements in an amount ranging from 0.1 to 15 wt. % calculated as the element and based on 100 wt. % of YO contained in the zeolitic material. Also provided are a process for its preparation, and a use in a method for the selective catalytic reduction of NOx.