Title:
多層触媒及びその調製方法
Document Type and Number:
Japanese Patent JP4601822
Kind Code:
B2
Abstract:
The present invention includes a catalyst that has at least four layers, (1) porous support, (2) buffer layer, (3) interfacial layer, and optionally (4) catalyst layer. The buffer layer provides a transition of thermal expansion coefficient from the porous support to the interfacial layer thereby reducing thermal expansion stress as the catalyst is heated to high operating temperatures. The method of the present invention for making the at least three layer catalyst has the steps of (1) selecting a porous support, (2) solution depositing an interfacial layer thereon, and optionally (3) depositing a catalyst material onto the interfacial layer; wherein the improvement comprises (4) depositing a buffer layer between the porous support and the interfacial layer.
Inventors:
Tonkovic, Anna Lee Wai
Wang, Yang
Gao, Yufei
Wang, Yang
Gao, Yufei
Application Number:
JP2000562143A
Publication Date:
December 22, 2010
Filing Date:
July 27, 1999
Export Citation:
Assignee:
Battelle Memorial Institute
International Classes:
B01J33/00; B01J21/06; B01J37/02; B01J37/025; C07B61/00; C23C28/00; C23C28/04
Domestic Patent References:
| JP6055034A | ||||
| JP3207446A | ||||
| JP52031971A | ||||
| JP1270946A | ||||
| JP1315339A | ||||
| JP6142519A |
Foreign References:
| US5690900 | ||||
| US5422331 |
Other References:
A.N.Pestryakov et al.,"Foam metal catalysts with intermediate support for deep oxidation of hydrocarbons",Reaction Kinetics and Catalysis Letters,1994年,Vol.53, No.2,p.347-352
O.Yu.Podyacheva et al.,"Metal foam supported perovskite catalysts",Reaction Kinetics and Catalysis Letters,1997年,Vol.60, No.2,p.243-250
O.Yu.Podyacheva et al.,"Metal foam supported perovskite catalysts",Reaction Kinetics and Catalysis Letters,1997年,Vol.60, No.2,p.243-250
Attorney, Agent or Firm:
Kazuo Shamoto
Shosuke Imai
Tadashi Masui
Yasushi Kobayashi
Hiroyuki Tomita
Okimoto Kazuaki
Shosuke Imai
Tadashi Masui
Yasushi Kobayashi
Hiroyuki Tomita
Okimoto Kazuaki