JPS5715824A - Method for removing nitrogen oxide in waste gas - Google Patents

Method for removing nitrogen oxide in waste gas

Info

Publication number
JPS5715824A
JPS5715824A JP7048081A JP7048081A JPS5715824A JP S5715824 A JPS5715824 A JP S5715824A JP 7048081 A JP7048081 A JP 7048081A JP 7048081 A JP7048081 A JP 7048081A JP S5715824 A JPS5715824 A JP S5715824A
Authority
JP
Japan
Prior art keywords
nox
catalyst
reducing
gases
making
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
JP7048081A
Other languages
Japanese (ja)
Inventor
Sanseki Moriguchi
Hiroshi Abe
Taisuke Nishida
Joichi Takenaka
Makoto Miyazawa
Sadayoshi Iwabuchi
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP7048081A priority Critical patent/JPS5715824A/en
Publication of JPS5715824A publication Critical patent/JPS5715824A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To reduce NOX at a low cost by using iron ore as a reducing catalyst for NOX at the time of reducing the NOX contained in various waste gases in the presence of ammonia thereby making the gases harmless. CONSTITUTION:At the time of making harmful waste gases contg. NOX such as waste combustion gases and waste gases of reaction systems harmless by reducing the NOX to nitrogen by using ammonia as a reducing agent, iron ore is used as a reducing catalyst. As compoared to conventional catalysts such as Pt, Co and the like, iron ore is extremely inexpensive and does not require catalyst carriers. After the use as a catalyst, it retains the initial value as a raw material for iron making, and therefore, the cost of denitration is reduced considerably by the extremely inexpensive catalyst of good efficiency.
JP7048081A 1981-05-11 1981-05-11 Method for removing nitrogen oxide in waste gas Pending JPS5715824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7048081A JPS5715824A (en) 1981-05-11 1981-05-11 Method for removing nitrogen oxide in waste gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7048081A JPS5715824A (en) 1981-05-11 1981-05-11 Method for removing nitrogen oxide in waste gas

Publications (1)

Publication Number Publication Date
JPS5715824A true JPS5715824A (en) 1982-01-27

Family

ID=13432721

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7048081A Pending JPS5715824A (en) 1981-05-11 1981-05-11 Method for removing nitrogen oxide in waste gas

Country Status (1)

Country Link
JP (1) JPS5715824A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4656148A (en) * 1984-08-22 1987-04-07 Didier-Werke Ag Method for the reactivation of a catalyst used for removal of nitrogen oxides
JP2011161330A (en) * 2010-02-05 2011-08-25 Nippon Steel Corp Apparatus for denitrifying exhaust

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4656148A (en) * 1984-08-22 1987-04-07 Didier-Werke Ag Method for the reactivation of a catalyst used for removal of nitrogen oxides
JP2011161330A (en) * 2010-02-05 2011-08-25 Nippon Steel Corp Apparatus for denitrifying exhaust

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