JPS5556822A - Simultaneous desulfurization and denitration of waste gas - Google Patents

Simultaneous desulfurization and denitration of waste gas

Info

Publication number
JPS5556822A
JPS5556822A JP12841378A JP12841378A JPS5556822A JP S5556822 A JPS5556822 A JP S5556822A JP 12841378 A JP12841378 A JP 12841378A JP 12841378 A JP12841378 A JP 12841378A JP S5556822 A JPS5556822 A JP S5556822A
Authority
JP
Japan
Prior art keywords
waste liquid
line
waste
stage
cog
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
JP12841378A
Other languages
Japanese (ja)
Inventor
Ataru Wakabayashi
Jun Hasegawa
Kunihiko Yokota
Masao Shinguu
Kazuyuki Shiga
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.)
Chiyoda Chemical Engineering and Construction Co Ltd
Original Assignee
Chiyoda Chemical Engineering and Construction 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 Chiyoda Chemical Engineering and Construction Co Ltd filed Critical Chiyoda Chemical Engineering and Construction Co Ltd
Priority to JP12841378A priority Critical patent/JPS5556822A/en
Publication of JPS5556822A publication Critical patent/JPS5556822A/en
Pending 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 remove simultaneously SOx and NOx effectively by adding an oxidizing agent to waste gas containing SOx and NOx, absorbing SOx and NOx by a specified waste liquid containing copper ion and treating the resulting liquid in an accomplished COG desulfurization waste liquid treatment stage.
CONSTITUTION: Waste gas containing SOx and NOx from sintering furnace, coke oven, etc. is passed through a line 3 into an oxidizing stage 4 where NO is oxidized with ozone from a line 5 to NO2. Then in an absorption stage 9, the gas is contacted with a waste liquid which is obtained by adding a copper ion from a line 8 to COG desulfurized decyanogen waste liquid containing thiosulfate, etc. In the adsorption stage the absorption of NOx and SOx is promoted by the presence of copper ion, and simultaneously CN present in the waste liquid is converted to harmless SCN. Cleaned waste gas is discharged through a line 18 to the atmosphere. Part of waste liquid is supplied via a line 24 to COG desulfurization decyanogen waste liquid treating provision 23 where the liquid is treated and the absorbed NOx and SOx components are hydrolyzed to form ammonium ion and sulfate ion.
COPYRIGHT: (C)1980,JPO&Japio
JP12841378A 1978-10-20 1978-10-20 Simultaneous desulfurization and denitration of waste gas Pending JPS5556822A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12841378A JPS5556822A (en) 1978-10-20 1978-10-20 Simultaneous desulfurization and denitration of waste gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12841378A JPS5556822A (en) 1978-10-20 1978-10-20 Simultaneous desulfurization and denitration of waste gas

Publications (1)

Publication Number Publication Date
JPS5556822A true JPS5556822A (en) 1980-04-26

Family

ID=14984147

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12841378A Pending JPS5556822A (en) 1978-10-20 1978-10-20 Simultaneous desulfurization and denitration of waste gas

Country Status (1)

Country Link
JP (1) JPS5556822A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104748572A (en) * 2015-04-13 2015-07-01 清华大学 Oxidizing-absorbing type wet denitration system and method for smoke of sintering machine
CN109384200A (en) * 2018-12-27 2019-02-26 中冶焦耐(大连)工程技术有限公司 Processing coke oven gas desulfurization produces the technique and device of low bright sulfur sulphur and secondary salt waste liquid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104748572A (en) * 2015-04-13 2015-07-01 清华大学 Oxidizing-absorbing type wet denitration system and method for smoke of sintering machine
CN104748572B (en) * 2015-04-13 2016-10-26 清华大学 The oxidation-absorption wet type denitrating system of a kind of sintering device flue gas and method
CN109384200A (en) * 2018-12-27 2019-02-26 中冶焦耐(大连)工程技术有限公司 Processing coke oven gas desulfurization produces the technique and device of low bright sulfur sulphur and secondary salt waste liquid

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