Title:
HEAT RESISTANT CATALYST AND METHOD FOR USING THE SAME
Document Type and Number:
Japanese Patent JP2533703
Kind Code:
B2
Abstract:
PURPOSE: To prevent the flocculation of a catalytically active component and the reduction of the specific surface area during a reaction at a high temp. by carrying the catalytically active component on a carrier based on a prescribed multiple oxide consisting of lanthanum and β-alumina.
CONSTITUTION: A catalytically active component is carried on a carrier based on a multiple oxide consisting of lanthanum and β-alumina represented by 11-14Al2O3.La2O3. In this case, the carrier is preferably made of only aluminum- lanthanum multiple oxide. Even when the resulting catalyst is used at a high temp. of ≥1,000°C, the flocculation of the catalytically active component by heat is inhibited and the catalytic performance is stabilized. The surface of the multiple oxide may be coated with ceramic. In the case where the catalytically active component is one or more kinds of group VIII elements of the periodic table, the resulting catalyst can be used as a heat resistant catalyst for steam reforming.
Inventors:
YAMASHITA HISAO
KATO AKIRA
UNO SHIGEO
MIZUMOTO MAMORU
MATSUDA SHINPEI
KATO AKIRA
UNO SHIGEO
MIZUMOTO MAMORU
MATSUDA SHINPEI
Application Number:
JP21185491A
Publication Date:
September 11, 1996
Filing Date:
August 23, 1991
Export Citation:
Assignee:
HITACHI LTD
International Classes:
B01J23/10; B01J23/30; B01J23/56; B01J23/63; B01J23/755; B01J23/76; B01J23/80; B01D53/94; B01J23/89; B01J32/00; C01B3/40; C07B61/00; C07C1/04; C07C1/12; C07C4/06; C07C9/04; C07C47/052; C10G11/04; C10G11/20; F23J15/00; (IPC1-7): B01J23/755; B01J32/00; C01B3/40; C07B61/00; C07C9/04; C10G11/04; C10G11/20
Attorney, Agent or Firm:
Ogawa Katsuo