JPS5742321A - Treatment of waste gas - Google Patents

Treatment of waste gas

Info

Publication number
JPS5742321A
JPS5742321A JP55118264A JP11826480A JPS5742321A JP S5742321 A JPS5742321 A JP S5742321A JP 55118264 A JP55118264 A JP 55118264A JP 11826480 A JP11826480 A JP 11826480A JP S5742321 A JPS5742321 A JP S5742321A
Authority
JP
Japan
Prior art keywords
waste gas
dust
ammonium sulfate
injected
ammonia
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
JP55118264A
Other languages
Japanese (ja)
Inventor
Atsuko Imahashi
Yasuyoshi Kato
Kunihiko Konishi
Masao Ota
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.)
Mitsubishi Power Ltd
Original Assignee
Babcock Hitachi KK
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 Babcock Hitachi KK filed Critical Babcock Hitachi KK
Priority to JP55118264A priority Critical patent/JPS5742321A/en
Publication of JPS5742321A publication Critical patent/JPS5742321A/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)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

PURPOSE: To prevent the lowering of the performance of a catalyst due to deposition of SOx-NH3 combinations at low temperatures and the accumulation of dust by a method in which NH3 is injected into SOx containing waste gas to convert SOx into ammonium sulfate or acid ammonium sulfate particles, these mist and dust in the waste gas are arrested by an electric dust collector, and the waste gas is subjected to denitrification treatment.
CONSTITUTION: Waste gas discharged from a boiler 1 passes through a flue 2, is cooled to approx. 150W200°C by an air preheater 3, and then mixed with ammonia injected from an ammonia injection line 10 in the middle of the fuel 4. The ammonia is reacted with SOx present in the waste gas quantitatively for the most part to form ammonium sulfate particles. The particles thus formed and dust present in the waste gas are then collected by an electric dust collector 5. The waste gas deprived of dust and ammonium sulfate particles is further mixed with NH3 required for denitrification reaction, injected from the ammonia injection line 11, and then directed to a denitrification reactor 7 packed with an active catalyst for ammoniacal reductive reaction of NOx.
COPYRIGHT: (C)1982,JPO&Japio
JP55118264A 1980-08-29 1980-08-29 Treatment of waste gas Pending JPS5742321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55118264A JPS5742321A (en) 1980-08-29 1980-08-29 Treatment of waste gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55118264A JPS5742321A (en) 1980-08-29 1980-08-29 Treatment of waste gas

Publications (1)

Publication Number Publication Date
JPS5742321A true JPS5742321A (en) 1982-03-09

Family

ID=14732319

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55118264A Pending JPS5742321A (en) 1980-08-29 1980-08-29 Treatment of waste gas

Country Status (1)

Country Link
JP (1) JPS5742321A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105344236A (en) * 2015-11-13 2016-02-24 西南化工研究设计院有限公司 An integrated desulfurization-denitrification-dedusting process for coke oven flue gas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105344236A (en) * 2015-11-13 2016-02-24 西南化工研究设计院有限公司 An integrated desulfurization-denitrification-dedusting process for coke oven flue gas

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