Title:
【発明の名称】マンガン並びにアルカリ、アルカリ土類及び希土類から選ぶ別の元素をベースにした二種の組成物を組み合わせた、NOxトラップとして使用することができるコンパウンド並びにそれの、排ガスの処理における使用
Document Type and Number:
Japanese Patent JP2002543964
Kind Code:
A
Abstract:
The invention concerns a compound and its use as NOx trap in the treatment of exhaust gases. Said compound is characterised in that it comprises a combination of: a first composition comprising a support and an active phase, the active phase being based on manganese and at least another element A selected among the alkalines and alkaline earths, the manganese and the element A being chemically bound, a second composition comprising a support and an active phase based on manganese and at least another element B selected among the alkalines, the alkaline-earths and rare earths, said second composition having or capable of having a specific surface area of at least 10 m<2>/g after being calcined for 8 hours at 800 DEG C.
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Inventors:
Christian veil
Thierry Birschemm
Christoph Bouley
Marc Guyon
Catherine Edouin
Najamoral
Thierry Pontier
Christian Salda
Thierry Segiron
Thierry Birschemm
Christoph Bouley
Marc Guyon
Catherine Edouin
Najamoral
Thierry Pontier
Christian Salda
Thierry Segiron
Application Number:
JP2000616923A
Publication Date:
December 24, 2002
Filing Date:
May 05, 2000
Export Citation:
Assignee:
RHONE-POULENC CHIMIE
Ssia
Renor
Ssia
Renor
International Classes:
F01N3/08; B01D53/94; B01J20/02; B01J20/04; B01J20/06; B01J23/34; B01J32/00; B01J37/02; C01G25/00; F01N3/10; F01N3/28; B01J23/02; B01J23/10; (IPC1-7): B01J23/34; B01D53/94; B01J32/00; F01N3/08; F01N3/10; F01N3/28
Attorney, Agent or Firm:
Motohiro Kurauchi (1 outside)