Title:
【発明の名称】内燃機関排ガスの処理方法
Document Type and Number:
Japanese Patent JP3337487
Kind Code:
B2
Abstract:
PURPOSE:To suppress oxidization of sulfur compd. such as SO2 in exhaust gas to sulfuric acid and to prevent the deterioration of catalyst and the corrosion of a device caused by sulfuric acid. CONSTITUTION:A catalyst (normal oxidization catalyst) for the combustion of carbon fine particles is brought into contact with exhaust gas from an internal combustion engine using sulfur-contg. fuel in the presence of hydrocarbons or oxygen-contg. org. compds. Since hydrocarbons or oxygen-contg. org. compds. are preferentially oxidized by the oxidization catalyst, SO2 is not oxidized but released as it is. Thus, no sulfuric acid is produced to prolong the life of the catalyst and the device.
Inventors:
Tomohiro Yoshinari
Masaaki Kawatsuke
Hiroshi Tsuchida
Katsumi Miyamoto
Masaaki Kawatsuke
Hiroshi Tsuchida
Katsumi Miyamoto
Application Number:
JP2191092A
Publication Date:
October 21, 2002
Filing Date:
January 11, 1992
Export Citation:
Assignee:
Petroleum Industry Activation Center
Cosmo Oil Co., Ltd.
Cosmo Oil Co., Ltd.
International Classes:
B01J23/44; B01J23/46; F01N3/02; F01N3/08; B01D53/94; (IPC1-7): B01D53/94; B01J23/44; B01J23/46; F01N3/02; F01N3/08
Domestic Patent References:
| JP147450A | ||||
| JP5115789A | ||||
| JP5115790A | ||||
| JP59142851A | ||||
| JP1254251A | ||||
| JP316645A | ||||
| JP4363119A | ||||
| JP531330A |
Attorney, Agent or Firm:
Kubota Chikashi (1 person outside)