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JPS5637028A - Desulfurizing method of exhaust gas - Google Patents

Desulfurizing method of exhaust gas

Info

Publication number
JPS5637028A
JPS5637028A JP11124579A JP11124579A JPS5637028A JP S5637028 A JPS5637028 A JP S5637028A JP 11124579 A JP11124579 A JP 11124579A JP 11124579 A JP11124579 A JP 11124579A JP S5637028 A JPS5637028 A JP S5637028A
Authority
JP
Japan
Prior art keywords
absorbing liquid
calcium chloride
desulfurizing
concn
calcium
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
JP11124579A
Other languages
Japanese (ja)
Other versions
JPS6335295B2 (en
Inventor
Yasushi Tomisaka
Harumasa Tanabe
Masami Takao
Ichiji Hatakeyama
Susumu Tanaka
Hidekatsu Fujiwara
Toyohiko Masuda
Hideaki Irie
Kunio Tanaka
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 JP11124579A priority Critical patent/JPS5637028A/en
Publication of JPS5637028A publication Critical patent/JPS5637028A/en
Publication of JPS6335295B2 publication Critical patent/JPS6335295B2/ja
Granted legal-status Critical Current

Links

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  • Treating Waste Gases (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

PURPOSE: To enhance the desulfurizing ratio and the alkali original unit together by controlling the pH of an absorbing liquid and the concn. of calcium chloride correctly in a wet lime and gypsum desulfurizing method using an absorbing liquid containing the lime component and calcium chloride.
CONSTITUTION: In the desulfurizing method using the slurry absorbing liquid containing the lime component such as calcium carbonate or calcium hydroxide as well as calcium chloride, when the pH of the absorbing liquid is as Y and the concn. of calcium chloride in the absorbing liquid is as Xwt/vol%, the pH of the absorbing liquid and the concn. of calcium chloride are adjusted so as to satisfy the formula -0.025X+4≤Y≤-0.1X+9. Then, the desulfurizing ratio is raised as the pH becomes high as well as the loss of an alkali is prevented by the presence of calcium chloride.
COPYRIGHT: (C)1981,JPO&Japio
JP11124579A 1979-08-30 1979-08-30 Desulfurizing method of exhaust gas Granted JPS5637028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11124579A JPS5637028A (en) 1979-08-30 1979-08-30 Desulfurizing method of exhaust gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11124579A JPS5637028A (en) 1979-08-30 1979-08-30 Desulfurizing method of exhaust gas

Publications (2)

Publication Number Publication Date
JPS5637028A true JPS5637028A (en) 1981-04-10
JPS6335295B2 JPS6335295B2 (en) 1988-07-14

Family

ID=14556259

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11124579A Granted JPS5637028A (en) 1979-08-30 1979-08-30 Desulfurizing method of exhaust gas

Country Status (1)

Country Link
JP (1) JPS5637028A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6902714B2 (en) * 2000-10-05 2005-06-07 F. L. Smidth A/S Method for reducing the SO2 emission from a plant for manufacturing cement clinker and such plant
US7431757B2 (en) * 2002-09-19 2008-10-07 Siemens Power Generation, Inc. Water and sulfur removal from combustion turbine exhaust

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS493874A (en) * 1972-05-04 1974-01-14
JPS5015784A (en) * 1973-05-10 1975-02-19
JPS5377889A (en) * 1976-12-21 1978-07-10 Kobe Steel Ltd Preventing method for formation of gypsum scale in flue gas desulfurizationtreatment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS493874A (en) * 1972-05-04 1974-01-14
JPS5015784A (en) * 1973-05-10 1975-02-19
JPS5377889A (en) * 1976-12-21 1978-07-10 Kobe Steel Ltd Preventing method for formation of gypsum scale in flue gas desulfurizationtreatment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6902714B2 (en) * 2000-10-05 2005-06-07 F. L. Smidth A/S Method for reducing the SO2 emission from a plant for manufacturing cement clinker and such plant
US7431757B2 (en) * 2002-09-19 2008-10-07 Siemens Power Generation, Inc. Water and sulfur removal from combustion turbine exhaust

Also Published As

Publication number Publication date
JPS6335295B2 (en) 1988-07-14

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