JPS5423068A - Removing method for nitrogen oxides in exhaust gas - Google Patents

Removing method for nitrogen oxides in exhaust gas

Info

Publication number
JPS5423068A
JPS5423068A JP8729977A JP8729977A JPS5423068A JP S5423068 A JPS5423068 A JP S5423068A JP 8729977 A JP8729977 A JP 8729977A JP 8729977 A JP8729977 A JP 8729977A JP S5423068 A JPS5423068 A JP S5423068A
Authority
JP
Japan
Prior art keywords
exhaust gas
nitrogen oxides
removing method
nox
equalizing
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
JP8729977A
Other languages
Japanese (ja)
Inventor
Akira Kato
Shinpei Matsuda
Shigeo Uno
Yoichi Sakuta
Fumito Nakajima
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8729977A priority Critical patent/JPS5423068A/en
Priority to US05/926,111 priority patent/US4351811A/en
Priority to DE2832002A priority patent/DE2832002C3/en
Publication of JPS5423068A publication Critical patent/JPS5423068A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To enable to effectively remove NOx at a low temperature, by adding ammonia and contacting with metal oxides contained catalyst after adding nitric acid to exhaust gas and equalizing the concentration of NO and NOx in exhaust gas.
COPYRIGHT: (C)1979,JPO&Japio
JP8729977A 1977-07-20 1977-07-22 Removing method for nitrogen oxides in exhaust gas Pending JPS5423068A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8729977A JPS5423068A (en) 1977-07-22 1977-07-22 Removing method for nitrogen oxides in exhaust gas
US05/926,111 US4351811A (en) 1977-07-20 1978-07-19 Process for reducing an eliminating nitrogen oxides in an exhaust gas
DE2832002A DE2832002C3 (en) 1977-07-20 1978-07-20 Process for removing nitrogen oxides from combustion exhaust gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8729977A JPS5423068A (en) 1977-07-22 1977-07-22 Removing method for nitrogen oxides in exhaust gas

Publications (1)

Publication Number Publication Date
JPS5423068A true JPS5423068A (en) 1979-02-21

Family

ID=13910936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8729977A Pending JPS5423068A (en) 1977-07-20 1977-07-22 Removing method for nitrogen oxides in exhaust gas

Country Status (1)

Country Link
JP (1) JPS5423068A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54115672A (en) * 1978-03-01 1979-09-08 Hitachi Ltd Treating method for exhaust gas containing nitrogen oxides
JPS5637029A (en) * 1979-08-31 1981-04-10 Mitsubishi Heavy Ind Ltd Reduction of nox in exhaust gas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54115672A (en) * 1978-03-01 1979-09-08 Hitachi Ltd Treating method for exhaust gas containing nitrogen oxides
JPS5637029A (en) * 1979-08-31 1981-04-10 Mitsubishi Heavy Ind Ltd Reduction of nox in exhaust gas

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