JPS5451987A - Wet treatment method of gas containing nitrogen oxide - Google Patents

Wet treatment method of gas containing nitrogen oxide

Info

Publication number
JPS5451987A
JPS5451987A JP11732777A JP11732777A JPS5451987A JP S5451987 A JPS5451987 A JP S5451987A JP 11732777 A JP11732777 A JP 11732777A JP 11732777 A JP11732777 A JP 11732777A JP S5451987 A JPS5451987 A JP S5451987A
Authority
JP
Japan
Prior art keywords
treating liquid
less
gas
water
gas containing
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.)
Granted
Application number
JP11732777A
Other languages
Japanese (ja)
Other versions
JPS5633131B2 (en
Inventor
Shigeyoshi Ono
Nobuo Tanaka
Junzo Harada
Masahiro Okamura
Kiemon Koide
Keiji Ninomiya
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.)
Idemitsu Kosan Co Ltd
Original Assignee
Idemitsu Kosan 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 Idemitsu Kosan Co Ltd filed Critical Idemitsu Kosan Co Ltd
Priority to JP11732777A priority Critical patent/JPS5451987A/en
Publication of JPS5451987A publication Critical patent/JPS5451987A/en
Publication of JPS5633131B2 publication Critical patent/JPS5633131B2/ja
Granted 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Treating Waste Gases (AREA)

Abstract

PURPOSE: To efficiently absorb NOx, by converting NO in gas containing NOx into nitrite or nitrate N by contacting said gas with a treating liquid containing water- soluble phthalocyanin metallic complex compounds, reducing agents and water.
CONSTITUTION: A treating liquid is prepared which contains water-soluble phthalocyanin metallic complex compounds (For example, cobalt phthalocyaninsulfonic acid or its salt), which wt. % is not less than 0.0005 - especially, not less than 0.1, reducing agents (For example, L-ascorbic acid), which quantities are not less than equivalent mol to SO--3 in the treating liquid, and water in the remainder. An antifrothing agent is added to e treating liquid as necessary and SO--3 sources (For example, Na2SO3) is added for preparing for SO2 in exhaust gas. The pH of the treating liquid is adjusted to not less than 7 - especially, not less than 10, and the liquid is contacted with gas containing NOx, thus absorption removing NO in gas. Denitration rate is changed into a stationary condition after a fixed time, activity is maintained in a stable condition for a long term and high denitration rate is held by using this treating liquid
COPYRIGHT: (C)1979,JPO&Japio
JP11732777A 1977-10-01 1977-10-01 Wet treatment method of gas containing nitrogen oxide Granted JPS5451987A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11732777A JPS5451987A (en) 1977-10-01 1977-10-01 Wet treatment method of gas containing nitrogen oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11732777A JPS5451987A (en) 1977-10-01 1977-10-01 Wet treatment method of gas containing nitrogen oxide

Publications (2)

Publication Number Publication Date
JPS5451987A true JPS5451987A (en) 1979-04-24
JPS5633131B2 JPS5633131B2 (en) 1981-08-01

Family

ID=14708986

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11732777A Granted JPS5451987A (en) 1977-10-01 1977-10-01 Wet treatment method of gas containing nitrogen oxide

Country Status (1)

Country Link
JP (1) JPS5451987A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109092017A (en) * 2018-09-19 2018-12-28 上海交通大学 A kind of method that flue gas oxidation and denitration controls nitrate generation in absorbing liquid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109092017A (en) * 2018-09-19 2018-12-28 上海交通大学 A kind of method that flue gas oxidation and denitration controls nitrate generation in absorbing liquid
CN109092017B (en) * 2018-09-19 2021-11-26 上海交通大学 Method for controlling generation of nitrate in absorption liquid by flue gas oxidation denitration

Also Published As

Publication number Publication date
JPS5633131B2 (en) 1981-08-01

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