JPS57197024A - Purification of exhaust gas - Google Patents

Purification of exhaust gas

Info

Publication number
JPS57197024A
JPS57197024A JP56082255A JP8225581A JPS57197024A JP S57197024 A JPS57197024 A JP S57197024A JP 56082255 A JP56082255 A JP 56082255A JP 8225581 A JP8225581 A JP 8225581A JP S57197024 A JPS57197024 A JP S57197024A
Authority
JP
Japan
Prior art keywords
catalyst
exhaust gas
flame spraying
base alloy
spraying method
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.)
Pending
Application number
JP56082255A
Other languages
Japanese (ja)
Inventor
Masaki Ikeda
Tadami Suzuki
Atsushi Nishino
Yoshihisa Oda
Nobuyuki Kanehara
Yoshifumi Moriya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56082255A priority Critical patent/JPS57197024A/en
Publication of JPS57197024A publication Critical patent/JPS57197024A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)

Abstract

PURPOSE: To reduce NO2 in an exhaust gas by using a catalyst having a catalytic coating of Fe-Cr or Fe-Cr-Ni base alloy formed on the surface of a catalyst carrier thereof by a flame spraying method to effectively reduce NO2 in the exhaust gas from a combustion instrument to NO.
CONSTITUTION: A porous carrier 2 such as a metal net or ceramic is subjected to surface area increasing treatment by blasting and, to the treated surface 3 of said carrier, an Fe-Cr base alloy or an Fe-Cr-Ni base alloy on a powdery or a wire like flame spraying material obtained by adding a minute amount of C, Co or Ti to said alloy according to necessity is deposited by flame spraying method to obtain a catalyst 1 having a porous catalytic coating formed thereon. This catalyst is used by arranging the same in the exhaust passage of the combustion chamber of a combustion instrument. By using the flame spraying method, the coating of the catalyst comes to a laminate of particles and the specific surface area thereof is increased as well as contact efficiency with the exhaust gas is enhanced and NO2→NO reducing efficiency is enhanced.
COPYRIGHT: (C)1982,JPO&Japio
JP56082255A 1981-05-28 1981-05-28 Purification of exhaust gas Pending JPS57197024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56082255A JPS57197024A (en) 1981-05-28 1981-05-28 Purification of exhaust gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56082255A JPS57197024A (en) 1981-05-28 1981-05-28 Purification of exhaust gas

Publications (1)

Publication Number Publication Date
JPS57197024A true JPS57197024A (en) 1982-12-03

Family

ID=13769330

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56082255A Pending JPS57197024A (en) 1981-05-28 1981-05-28 Purification of exhaust gas

Country Status (1)

Country Link
JP (1) JPS57197024A (en)

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