公开(公告)号：DE19546482A1

公开(公告)日：1997-06-26

申请号：DE19546482

申请日：1995-12-13

Applicant: BASF AG ,  DAIMLER BENZ AG

Inventor： WALZ LEONHARD DR ,  ROITZHEIM ROLF-DIRC DR ,  HARTWEG MARTIN DR ,  SEIBOLD ANDREA ,  FETZER THOMAS DR ,  MORSBACH BERND DIPL ING

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/00 ,  B01J23/72 ,  B01J23/76 ,  B01J23/80 ,  B01J23/84 ,  B01J23/847 ,  B01J23/85 ,  B01J23/89 ,  B01J35/04 ,  F01N3/035 ,  F01N3/08 ,  F01N3/20 ,  F01N13/02 ,  F01N3/10

Abstract: The operation of a purification apparatus for flowing gases comprises passing the gas stream through a filter body having a catalyst, a reducing agent being added to the gas before entering the catalyst. The flow direction (1) of the gas according to the treating stretch in the catalyst of the filter body (2), reducing agent added to the flowing gas, and contact with the catalyst of the filter body (2) are maintained. Also claimed is the purification apparatus comprising a feed device for the reducing agent, which is added to the gas while flowing through the filter body (2).

公开(公告)号：DE19546476A1

公开(公告)日：1997-06-19

申请号：DE19546476

申请日：1995-12-13

Applicant: DAIMLER BENZ AG ,  BASF AG

Inventor： HARTWEG MARTIN DR ,  WALZ LEONHARD DR ,  SEIBOLD ANDREA ,  FETZER THOMAS DR ,  MORSBACH BERND DIPL ING

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/00 ,  B01J23/72 ,  B01J23/84 ,  B01J23/89 ,  B01J23/889 ,  B01J23/83 ,  B01J23/847 ,  B01J23/88 ,  B01J23/888

Abstract: Use of a catalyst for reducing nitrogen oxides in exhaust gases from IC engines and/or combustion plants is new. The catalyst is a copper oxide-aluminum oxide spinel of formula: CuACuBA12O4 (where, A + B = 1 and A, B 0) impregnated with copper.

公开(公告)号：DE4420932A1

公开(公告)日：1996-01-11

申请号：DE4420932

申请日：1994-06-16

Applicant: BASF AG ,  DAIMLER BENZ AG

Inventor： HARTWEG MARTIN ,  HEINAU MARTINA ,  SEIBOLD ANDREA ,  WALZ LEONHARD

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/00 ,  B01J23/80 ,  B01J21/00 ,  B01J23/06 ,  B01J23/72

Abstract: A catalyst consisting of a spinel having formula CuaZncAldO4 where a + c + d = 3, a>0, c>0 and d>0 is used for the catalytic reduction of NOx and/or the oxidation of hydrocarbons present in waste gases. Also claimed is a method for mfg. such a catalyst from copper oxide, cobalt oxide, zinc oxide and aluminium oxide.