公开(公告)号：DE4413404A1

公开(公告)日：1995-10-19

申请号：DE4413404

申请日：1994-04-18

Applicant: DEGUSSA

Inventor： BLUMRICH STEPHAN ,  ENGLER BERND DR ,  NIEMANN-WEBER ANDREAS DR

IPC: B01D53/86 ,  B01J29/24 ,  B01J37/02 ,  B01D53/56 ,  B01J29/04 ,  B01J29/20

Abstract: Catalytic decomposition of N2O in gas into the elements involves passing the gas at elevated temp. over a catalyst contg. catalytically active components on an oxide support with a large surface area. The novel features is that the support is a zeolite and the active component is gp. VIII metal(s).

公开(公告)号：DE4413404C2

公开(公告)日：1999-01-14

申请号：DE4413404

申请日：1994-04-18

Applicant: DEGUSSA

Inventor： BLUMRICH STEPHAN ,  ENGLER BERND DR ,  NIEMANN-WEBER ANDREAS DR

IPC: B01D53/86 ,  B01J29/24 ,  B01J37/02 ,  B01D53/56 ,  B01J29/04 ,  B01J29/20

公开(公告)号：DE4341380A1

公开(公告)日：1995-06-14

申请号：DE4341380

申请日：1993-12-04

Applicant: DEGUSSA

Inventor： ENGLER BERND DR ,  LOX EGBERT DR ,  NIEMANN-WEBER ANDREAS DR

IPC: B01D53/00 ,  B01D53/86 ,  B01D53/88 ,  B01D53/94 ,  B01J38/02 ,  F01N3/20 ,  F01N3/38

Abstract: In a process to speed up the heating of a catalyst beyond the activated threshold, additional heat energy is supplied to the catalyst from an external source during a limited activation period. The catalyst may be present as a single piece of material or in the form of a bulk solid, to present a defined face against which the incoming reaction media flow. The novelty is that the additional energy is directed at one or more limited insulated areas upon the catalyst surface. Further that the amount of heat introduced to reach the threshold temp. is determined according to heat losses, heat conductivity and heat radiation within the activation period.