公开(公告)号：US10449522B2

公开(公告)日：2019-10-22

申请号：US15747240

申请日：2016-07-29

Applicant: BASF Corporation

Inventor： Marcus Hilgendorff ,  Andreas Stohr ,  Hermann Bidlingmaier ,  Joachim Fellger

IPC: B01J27/232 ,  B01J23/63 ,  B01D53/94 ,  B01J37/02 ,  B01J37/04 ,  B01J37/08 ,  B01J35/00 ,  B01J35/02 ,  B01J35/04 ,  B01J35/10 ,  B01J37/00 ,  B01J23/10

Abstract: Processes for manufacturing nitrogen oxide storage materials and lean NOx trap catalysts are disclosed. Also disclosed are nitrogen oxide storage material made by processes comprising barium carbonate (BaCO3) and ceria (CeO2) by using Ba(OH)2 instead of most or all Ba(OOCH3)2 to reduce cost and reduce harmful byproducts. Aspects of the present invention also relate generally to lean NOx trap (LNT) comprising nitrogen oxide storage materials.