CA1264314C - Filter medium for treating an exhaust gas - Google Patents

Filter medium for treating an exhaust gas

Info

Publication number
CA1264314C
CA1264314C CA508108A CA508108A CA1264314C CA 1264314 C CA1264314 C CA 1264314C CA 508108 A CA508108 A CA 508108A CA 508108 A CA508108 A CA 508108A CA 1264314 C CA1264314 C CA 1264314C
Authority
CA
Canada
Prior art keywords
exhaust gas
filter medium
substrate
layer
treating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA508108A
Other languages
French (fr)
Other versions
CA1264314A (en
Inventor
Mitsuhiro Horaguchi
Yuji Kaihara
Shigechika Tomisawa
Yukio Iida
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to CA000508108A priority Critical patent/CA1264314A/en
Application granted granted Critical
Publication of CA1264314C publication Critical patent/CA1264314C/en
Publication of CA1264314A publication Critical patent/CA1264314A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

ABSTRACT OF THE DISCLOSURE A filter medium for treating exhaust gases which is placed in a passage of an exhaust gas to eliminate impurity gases by contact with the medium, which comprises a porous ceramic substrate, a pre-coat layer of a reaction aid and a layer of a solid material formed on one side of the substrate from which the exhaust gas is charged through the substrate, and a catalyst layer for eliminating nitrogen oxides formed on the other side of the substrate from which the exhaust gas is discharge. The filter medium may have a double-cylinder construction, in which the catalyst layer is formed on at least one side of a inner cylinder and the pre-coat layer and the solid material layer are formed on an outer side of an outer cylinder.
CA000508108A 1986-05-01 1986-05-01 Filter medium for treating an exhaust gas Expired - Lifetime CA1264314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000508108A CA1264314A (en) 1986-05-01 1986-05-01 Filter medium for treating an exhaust gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000508108A CA1264314A (en) 1986-05-01 1986-05-01 Filter medium for treating an exhaust gas

Publications (2)

Publication Number Publication Date
CA1264314C true CA1264314C (en) 1990-01-09
CA1264314A CA1264314A (en) 1990-01-09

Family

ID=4133023

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000508108A Expired - Lifetime CA1264314A (en) 1986-05-01 1986-05-01 Filter medium for treating an exhaust gas

Country Status (1)

Country Link
CA (1) CA1264314A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2631309C (en) 2008-04-10 2009-10-13 Hubert Sabourin Method and system for treating polluted gases

Also Published As

Publication number Publication date
CA1264314A (en) 1990-01-09

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Legal Events

Date Code Title Description
MKLA Lapsed
MKLA Lapsed

Effective date: 20030109

MKLA Lapsed

Effective date: 20030109