JPS56150421A - Cleaning of waste gas - Google Patents

Cleaning of waste gas

Info

Publication number
JPS56150421A
JPS56150421A JP5294080A JP5294080A JPS56150421A JP S56150421 A JPS56150421 A JP S56150421A JP 5294080 A JP5294080 A JP 5294080A JP 5294080 A JP5294080 A JP 5294080A JP S56150421 A JPS56150421 A JP S56150421A
Authority
JP
Japan
Prior art keywords
desulfurizer
desulfurizing agent
denitrator
waste gas
boiler
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
JP5294080A
Other languages
Japanese (ja)
Other versions
JPS6358605B2 (en
Inventor
Kenichi Gomi
Takeo Komuro
Norio Arashi
Hidetoshi Akimoto
Takao Hishinuma
Fumito Nakajima
Osamu Kanda
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
Mitsubishi Power Ltd
Original Assignee
Babcock Hitachi KK
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 Babcock Hitachi KK, Hitachi Ltd filed Critical Babcock Hitachi KK
Priority to JP5294080A priority Critical patent/JPS56150421A/en
Publication of JPS56150421A publication Critical patent/JPS56150421A/en
Publication of JPS6358605B2 publication Critical patent/JPS6358605B2/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

Abstract

PURPOSE: To prevent the lowering of the performance of a desulfurizing agent caused by the heating and desorption by adsorbing to a desulfurizing agent in a dry type desulfurizer for the waste gas from a boiler NH3 which is discharged out of a denitrator disposed nearer to the boiler side than the desulfurizer.
CONSTITUTION: The waste gas of a coal-firing boiler 1 is introduced into an electric dust collector 2, or directly into a denitrator 3, further passed through an air preheater 4 and a desulfurizer 5 for celaning, and then dischaged from a stack 6. In this case, the amount of NH3 to be injected through a conduit 7 for reducing NOx by a catalyst is increased to the ratio of NH3/NO=1.5W1.8mol. Unreacted NH3 being discharged out of the denitrator 3 is adsorbed to the desulfurizing agent in the adsorption tower of the desulfurizer 5, where it is desorbed in he form of N2. Thus, the deterioration of the performance of the desulfurizing agent can be greatly prvented and at the same time touble with the outflow of unreacted NH3 can be eliminated.
COPYRIGHT: (C)1981,JPO&Japio
JP5294080A 1980-04-23 1980-04-23 Cleaning of waste gas Granted JPS56150421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5294080A JPS56150421A (en) 1980-04-23 1980-04-23 Cleaning of waste gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5294080A JPS56150421A (en) 1980-04-23 1980-04-23 Cleaning of waste gas

Publications (2)

Publication Number Publication Date
JPS56150421A true JPS56150421A (en) 1981-11-20
JPS6358605B2 JPS6358605B2 (en) 1988-11-16

Family

ID=12928857

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5294080A Granted JPS56150421A (en) 1980-04-23 1980-04-23 Cleaning of waste gas

Country Status (1)

Country Link
JP (1) JPS56150421A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58122024A (en) * 1982-01-14 1983-07-20 Sumitomo Heavy Ind Ltd Controlling method of injecting rate of ammonia in dry desulfurizing device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4428139C2 (en) * 1993-10-27 1996-10-02 Mann & Hummel Filter Filter device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092858A (en) * 1973-12-20 1975-07-24
JPS50104775A (en) * 1974-01-25 1975-08-19
JPS5123474A (en) * 1972-09-01 1976-02-25 Exxon Research Engineering Co
JPS5626545A (en) * 1979-08-10 1981-03-14 Sumitomo Heavy Ind Ltd Reactivation of carbon adsorbent for desulfurization
JPS5667541A (en) * 1979-11-05 1981-06-06 Sumitomo Heavy Ind Ltd Regeneration method of carbonaceous adsorbent for desulfurization

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5123474A (en) * 1972-09-01 1976-02-25 Exxon Research Engineering Co
JPS5092858A (en) * 1973-12-20 1975-07-24
JPS50104775A (en) * 1974-01-25 1975-08-19
JPS5626545A (en) * 1979-08-10 1981-03-14 Sumitomo Heavy Ind Ltd Reactivation of carbon adsorbent for desulfurization
JPS5667541A (en) * 1979-11-05 1981-06-06 Sumitomo Heavy Ind Ltd Regeneration method of carbonaceous adsorbent for desulfurization

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58122024A (en) * 1982-01-14 1983-07-20 Sumitomo Heavy Ind Ltd Controlling method of injecting rate of ammonia in dry desulfurizing device

Also Published As

Publication number Publication date
JPS6358605B2 (en) 1988-11-16

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