JPS5511020A - Denitration method of combustion exhaust gas - Google Patents

Denitration method of combustion exhaust gas

Info

Publication number
JPS5511020A
JPS5511020A JP8328778A JP8328778A JPS5511020A JP S5511020 A JPS5511020 A JP S5511020A JP 8328778 A JP8328778 A JP 8328778A JP 8328778 A JP8328778 A JP 8328778A JP S5511020 A JPS5511020 A JP S5511020A
Authority
JP
Japan
Prior art keywords
exhaust gas
tower
combustion exhaust
denitration
catalyzer
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
JP8328778A
Other languages
Japanese (ja)
Inventor
Shigeru Haseba
Sakae Ito
Yutaka Mifuji
Tatsuo Hirano
Yosuke Sawada
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP8328778A priority Critical patent/JPS5511020A/en
Publication of JPS5511020A publication Critical patent/JPS5511020A/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

Abstract

PURPOSE: To prevent deterioration of catalyzer and enable highly stable removal of NOx for a long period of time, by adsorbing and removing sulfur trioxide, sulfur and dust before dry type ammonia contact reduction of combustion exhaust gas containing nitrogen oxides and sulfur oxides.
CONSTITUTION: Since deterioration of catalyzer for denitration is mainly caused by SO3 contained usually about 5 to 7 vol.% of total SOx volume, it is removed, before denitration treatment, through granular adsorbent layer at room temperature to 300°C. For instance, the combustion exhaust gas from a boiler 1 is passed through a granular adsorbent filled layer 2a such as γ-alumina, and SO3 is removed. Then, after a certain period of time, when the adsorption of SO3 roughly reaches the saturated state, valves before and after the adsorbent filled tower 2a are opened and closed to change the process line to tower 2b. On the other hand, the regenerative gas is passed into the tower 2a from a blower 5 and heat exchanger 6, and adsorbed SO3 is removed, and the exhaust gas is taken out from the top of the tower. The exhaust gas rid of SO3 is catalytically reduced by NH3 coming from a tank 3 in a denitration reaction tower 4.
COPYRIGHT: (C)1980,JPO&Japio
JP8328778A 1978-07-07 1978-07-07 Denitration method of combustion exhaust gas Pending JPS5511020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8328778A JPS5511020A (en) 1978-07-07 1978-07-07 Denitration method of combustion exhaust gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8328778A JPS5511020A (en) 1978-07-07 1978-07-07 Denitration method of combustion exhaust gas

Publications (1)

Publication Number Publication Date
JPS5511020A true JPS5511020A (en) 1980-01-25

Family

ID=13798161

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8328778A Pending JPS5511020A (en) 1978-07-07 1978-07-07 Denitration method of combustion exhaust gas

Country Status (1)

Country Link
JP (1) JPS5511020A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5139982A (en) * 1991-07-02 1992-08-18 General Electric Company Supported metal oxide catalysts for the simultaneous removal of NOx and SOx from gas streams
EP1452222A1 (en) * 2003-02-27 2004-09-01 Mitsubishi Heavy Industries, Ltd. Exhaust gas treatment system and exhaust gas treatment
CN105080332A (en) * 2015-07-24 2015-11-25 中冶华天工程技术有限公司 Resource utilization system for pellet sintering waste gas and method
CN105498447A (en) * 2016-01-19 2016-04-20 武汉理工大学 Low-temprature flue gas denitration and poisoning-prevention system
CN106110870A (en) * 2016-08-31 2016-11-16 苏州贝捷环保设备有限公司 Coal-burning boiler dry dust removal and system for desulfuration and denitration
CN106215693A (en) * 2016-08-31 2016-12-14 苏州贝捷环保设备有限公司 Coal-fired flue-gas processes and uses dry chemical Catalytic processor
JP2017039072A (en) * 2015-08-19 2017-02-23 Ｊｆｅエンジニアリング株式会社 Exhaust gas purification device and method, and feeding device of carbon dioxide-containing gas and heat to facility for crop production
CN109136500A (en) * 2018-10-31 2019-01-04 上海颐柏热处理设备有限公司 A kind of vacuum heat treatment furnace with chemical deoxidization system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5139982A (en) * 1991-07-02 1992-08-18 General Electric Company Supported metal oxide catalysts for the simultaneous removal of NOx and SOx from gas streams
EP1452222A1 (en) * 2003-02-27 2004-09-01 Mitsubishi Heavy Industries, Ltd. Exhaust gas treatment system and exhaust gas treatment
CN105080332A (en) * 2015-07-24 2015-11-25 中冶华天工程技术有限公司 Resource utilization system for pellet sintering waste gas and method
JP2017039072A (en) * 2015-08-19 2017-02-23 Ｊｆｅエンジニアリング株式会社 Exhaust gas purification device and method, and feeding device of carbon dioxide-containing gas and heat to facility for crop production
CN105498447A (en) * 2016-01-19 2016-04-20 武汉理工大学 Low-temprature flue gas denitration and poisoning-prevention system
CN106110870A (en) * 2016-08-31 2016-11-16 苏州贝捷环保设备有限公司 Coal-burning boiler dry dust removal and system for desulfuration and denitration
CN106215693A (en) * 2016-08-31 2016-12-14 苏州贝捷环保设备有限公司 Coal-fired flue-gas processes and uses dry chemical Catalytic processor
CN109136500A (en) * 2018-10-31 2019-01-04 上海颐柏热处理设备有限公司 A kind of vacuum heat treatment furnace with chemical deoxidization system

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