Title:
排ガス浄化用触媒
Document Type and Number:
Japanese Patent JP3556695
Kind Code:
B2
Abstract:
PURPOSE:To prevent the sintering of a catalyst carrier due to long-time use at high temp., the sulfurization of the carrier by SOx in exhaust gas and the active aggregation of the carrier by hot steam in a catalyst for purification of exhaust gas contg. combustible harmful components discharged from an automobile or various industrial facilities and k obtain an exhaust gas purifica tion catalyst less lowering of its activity. CONSTITUTION:A ternary multiple oxide formed from silica (SiO2), titania (TiO2) and ceria (CeO2) is used as a catalyst carrier so as to improve resistance to high temp., hot steam and SOx, and the specific surface area is increased by the combination of the plural oxides. A catalytically active component made of palladium having high heat resistance or composed of palladium and platinum is dispersedly carried on the catalyst carrier by >=1wt.%.
Inventors:
Masahiro Nitta
Miki Ueda
Miki Ueda
Application Number:
JP7544394A
Publication Date:
August 18, 2004
Filing Date:
March 23, 1994
Export Citation:
Assignee:
Babcock Hitachi Ltd.
International Classes:
B01D53/94; B01J23/56; B01J23/63; B01D53/86; (IPC1-7): B01J23/63; B01D53/94; B01J23/56
Domestic Patent References:
| JP52122293A | ||||
| JP1218685A |
Attorney, Agent or Firm:
Takenaga Kawakita
Yoshiro Yamano
Yoshiro Yamano