JPS5745326A - Waste gas desulfurization method by lime gypsum method - Google Patents

Waste gas desulfurization method by lime gypsum method

Info

Publication number
JPS5745326A
JPS5745326A JP55121419A JP12141980A JPS5745326A JP S5745326 A JPS5745326 A JP S5745326A JP 55121419 A JP55121419 A JP 55121419A JP 12141980 A JP12141980 A JP 12141980A JP S5745326 A JPS5745326 A JP S5745326A
Authority
JP
Japan
Prior art keywords
cacl
alkaline liquid
concn
cooling water
contg
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
JP55121419A
Other languages
Japanese (ja)
Inventor
Akira Uragami
Toyohiko Masuda
Kazutoshi Shimogoori
Kazuo Fujiwara
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 JP55121419A priority Critical patent/JPS5745326A/en
Publication of JPS5745326A publication Critical patent/JPS5745326A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To extend the life of a device and improve removal efficiency by controlling the concn. of CaCl2 contained in the cooling water contg. CaCl2 of a process for cooling waste gases and the alkaline liquid contg. CaCl2 of a process for absorbing the sulfur oxides in the waste gases.
CONSTITUTION: A waste gas desulfurization method by a lime gypsum method using cooling water contg. CaCl2 in a cooling process and alkaline liquid contg. CaCl2 in an absorption process. At this time, the concn. of CaCl2 in the alkaline liquid is controlled in a 15W27.5% range, and the concn. of CaCl2 in the cooling water is so controlled as to be higher than 15% but not to be higher by 5% than the concn. of CaCl2 in the alkaline liquid. In this way, the concns. of the CaCl2 in the cooling water and the alkaline liquid are controlled while being mutually associated.
COPYRIGHT: (C)1982,JPO&Japio
JP55121419A 1980-09-01 1980-09-01 Waste gas desulfurization method by lime gypsum method Pending JPS5745326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55121419A JPS5745326A (en) 1980-09-01 1980-09-01 Waste gas desulfurization method by lime gypsum method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55121419A JPS5745326A (en) 1980-09-01 1980-09-01 Waste gas desulfurization method by lime gypsum method

Publications (1)

Publication Number Publication Date
JPS5745326A true JPS5745326A (en) 1982-03-15

Family

ID=14810679

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55121419A Pending JPS5745326A (en) 1980-09-01 1980-09-01 Waste gas desulfurization method by lime gypsum method

Country Status (1)

Country Link
JP (1) JPS5745326A (en)

Citations (4)

* 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
JPS5171897A (en) * 1974-12-20 1976-06-22 Kureha Chemical Ind Co Ltd HAIENDATSURYUHO
JPS5377889A (en) * 1976-12-21 1978-07-10 Kobe Steel Ltd Preventing method for formation of gypsum scale in flue gas desulfurizationtreatment

Patent Citations (4)

* 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
JPS5171897A (en) * 1974-12-20 1976-06-22 Kureha Chemical Ind Co Ltd HAIENDATSURYUHO
JPS5377889A (en) * 1976-12-21 1978-07-10 Kobe Steel Ltd Preventing method for formation of gypsum scale in flue gas desulfurizationtreatment

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