Title:
REMOVING METHOD OF NOX IN AUTOMOBILE EXHAUST GAS AND REMOVING CATALYST FOR NOX
Document Type and Number:
Japanese Patent JP3536311
Kind Code:
B2
Abstract:
PURPOSE: To efficiently decomposing and removing NOX in an automobile exhaust gas with a inexpensive base material by arranging a prescribed quantity of CaO.FeXO based multiple oxide having a specific component composition in an engine exhaust gas pipe reaching a prescribed temp. range at the time of driving automobile.
CONSTITUTION: The CAO.FeXO based multiple oxide containing 10-30wt.% CaO and ≤9wt.% component other than CaO and iron oxide is used, and ≥0.32kg CaO.FeXO based multiple oxide per 1m3/min discharge gas is arranged in the exhaust gas pipe of automobile engine reaching 300-700°C in temp.
Inventors:
Sugiyama, Takeshi
Morioka, Koichi
Morioka, Koichi
Application Number:
JP12720293A
Publication Date:
June 07, 2004
Filing Date:
May 28, 1993
Export Citation:
Assignee:
KOBE STEEL LTD
International Classes:
B01D53/94; B01J23/78; B01D53/86; (IPC1-7): B01D53/94; B01J23/78
Attorney, Agent or Firm:
植木 久一