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JPS55121835A - Nitrogen oxides-removing catalyst by reduction - Google Patents

Nitrogen oxides-removing catalyst by reduction

Info

Publication number
JPS55121835A
JPS55121835A JP2822679A JP2822679A JPS55121835A JP S55121835 A JPS55121835 A JP S55121835A JP 2822679 A JP2822679 A JP 2822679A JP 2822679 A JP2822679 A JP 2822679A JP S55121835 A JPS55121835 A JP S55121835A
Authority
JP
Japan
Prior art keywords
catalyst
nitrogen oxides
reduction
temperature
compound
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
JP2822679A
Other languages
Japanese (ja)
Inventor
Takashi Jinbo
Kiyougo Koizumi
Noriyuki Yanagawa
Hiroji Miyagawa
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP2822679A priority Critical patent/JPS55121835A/en
Publication of JPS55121835A publication Critical patent/JPS55121835A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain a catalyst having high durability and high reductive activity at low temperatures, for a low-temperature ammonia reduction method of waste gases, containing sulfur oxides and nitrogen oxides, by using compounds of titanium, vanadium and rare earth elements.
CONSTITUTION: In the ammonia-reduction of waste gases containing sulfur oxides and nitrogen oxides from coke oven, sintering furnace, etc., at a low temperature, a catalyst consisting of a titanium compound, a vanadium compound, and a rare earth element compound of lanthanum, Yttrium, etc., is used. The catalyst exhibits a high reductive activity under the temperature condition of 300°C or less and also a high durability under the heating regeneration condition for substances adhered to the surface of the catalyst.
COPYRIGHT: (C)1980,JPO&Japio
JP2822679A 1979-03-13 1979-03-13 Nitrogen oxides-removing catalyst by reduction Pending JPS55121835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2822679A JPS55121835A (en) 1979-03-13 1979-03-13 Nitrogen oxides-removing catalyst by reduction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2822679A JPS55121835A (en) 1979-03-13 1979-03-13 Nitrogen oxides-removing catalyst by reduction

Publications (1)

Publication Number Publication Date
JPS55121835A true JPS55121835A (en) 1980-09-19

Family

ID=12242686

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2822679A Pending JPS55121835A (en) 1979-03-13 1979-03-13 Nitrogen oxides-removing catalyst by reduction

Country Status (1)

Country Link
JP (1) JPS55121835A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53125286A (en) * 1977-04-08 1978-11-01 Ngk Insulators Ltd Catalyst for removing nitrogen oxide from exhaust gas

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53125286A (en) * 1977-04-08 1978-11-01 Ngk Insulators Ltd Catalyst for removing nitrogen oxide from exhaust gas

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