JPS5443869A - Simultaneous denitrating method in dry desulfurizing process for exhaust gas - Google Patents

Simultaneous denitrating method in dry desulfurizing process for exhaust gas

Info

Publication number
JPS5443869A
JPS5443869A JP11048777A JP11048777A JPS5443869A JP S5443869 A JPS5443869 A JP S5443869A JP 11048777 A JP11048777 A JP 11048777A JP 11048777 A JP11048777 A JP 11048777A JP S5443869 A JPS5443869 A JP S5443869A
Authority
JP
Japan
Prior art keywords
exhaust gas
denitrating
dust collector
cooling
collected
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
JP11048777A
Other languages
Japanese (ja)
Inventor
Shigekimi Matoba
Akio Yokoyama
Yoshihiro Hashimoto
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.)
AGC Inc
Original Assignee
Asahi Glass 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 Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Priority to JP11048777A priority Critical patent/JPS5443869A/en
Publication of JPS5443869A publication Critical patent/JPS5443869A/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 improve furthermore the denitrating rate in the above-mentioned simul taneous denitration, by desulfurizing and cooling the exhaust gas by spraying the equeous solution of NaOH or Na2CO3 to the exhaust gas of high temperature containing SOX and NOX and by blowing a part of the powder or particles of Na salt collected at the dust collector into the exhaust gas before the cooling.
CONSTITUTION: By sending the exhaust gas from the furnace 1 into the lower part of the cooling tower 3 and spraying 5 the aqueous solution 4 of NaOH or Na2CO3, the temperature of the exhaust gas which has been 400W700°C at first is lowered to 200W400°C. The sticking fine powder is washed away with the washing water 10. The generated Na salts consist mainly of Na2CO3, Na2SO3 and Na2SO4 and have the grain size of 1W40μ. The fine powder of Na salts led to the reaction chamber 12 provided with the packing of plate form collides to the packing and is made more minute, and the desulfurization progresses further. The solid matter collected at the dust collector 14 is sent to the dust storage 17 together with the solid matter which has fallen to the bottom of the reaction chamber 12 and 20W95% of the collected amount is blown into the exhaust gas at the inlet of the cooling tower 3 through the duct 18. NH3 is injected at the inlet of the reactor 12 through the injection tube 19 and the denitrating reaction is performed in the reactor 12 and the dust collector 14. The denitrating rate reaches 40W60%.
COPYRIGHT: (C)1979,JPO&Japio
JP11048777A 1977-09-16 1977-09-16 Simultaneous denitrating method in dry desulfurizing process for exhaust gas Pending JPS5443869A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11048777A JPS5443869A (en) 1977-09-16 1977-09-16 Simultaneous denitrating method in dry desulfurizing process for exhaust gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11048777A JPS5443869A (en) 1977-09-16 1977-09-16 Simultaneous denitrating method in dry desulfurizing process for exhaust gas

Publications (1)

Publication Number Publication Date
JPS5443869A true JPS5443869A (en) 1979-04-06

Family

ID=14536973

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11048777A Pending JPS5443869A (en) 1977-09-16 1977-09-16 Simultaneous denitrating method in dry desulfurizing process for exhaust gas

Country Status (1)

Country Link
JP (1) JPS5443869A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004241298A (en) * 2003-02-07 2004-08-26 Japan Science & Technology Agency Capillary plate, its manufacturing method, gas proportional counter tube, and imaging system
JP2008253877A (en) * 2007-03-30 2008-10-23 Mitsui Eng & Shipbuild Co Ltd Exhaust gas-treating device and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004241298A (en) * 2003-02-07 2004-08-26 Japan Science & Technology Agency Capillary plate, its manufacturing method, gas proportional counter tube, and imaging system
JP2008253877A (en) * 2007-03-30 2008-10-23 Mitsui Eng & Shipbuild Co Ltd Exhaust gas-treating device and method

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