Title:
【発明の名称】周期運転条件下での窒素酸化物分解および一酸化炭素酸化の同時触媒
Document Type and Number:
Japanese Patent JPH0622676
Kind Code:
B2
Abstract:
This invention discloses an automotive exhaust gas treatment catalyst composed of one or more noble metals dispersed on CeO2-RE2O3 carrier particles, where RE represents a rare earth metal. The ceria-rare earth oxide carrier for the noble metal facilitates the simultaneous oxidation of carbon monoxide, CO, and the decomposition of nitric oxide, NO. The catalyst is particularly useful when the air-fuel mixture to the automobile engine is continually cycled between fuel-rich and fuel-lean ratios compared to the stoichiometric air-fuel ratio.
Inventors:
BYON KUON CHOO
KURISUTOFUAA JOSEFU SUTOTSUKU
KURISUTOFUAA JOSEFU SUTOTSUKU
Application Number:
JP9187588A
Publication Date:
March 30, 1994
Filing Date:
April 15, 1988
Export Citation:
Assignee:
GEN MOTORS CORP
International Classes:
B01D53/94; B01J23/56; B01J23/63; (IPC1-7): B01J23/56; B01D53/36; B01J23/56
Domestic Patent References:
| JP5763133A |
Attorney, Agent or Firm:
Masao Okabe (5 others)
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