JPS551842A - After-treating method for desulfurization absorbing solution - Google Patents

After-treating method for desulfurization absorbing solution

Info

Publication number
JPS551842A
JPS551842A JP7421278A JP7421278A JPS551842A JP S551842 A JPS551842 A JP S551842A JP 7421278 A JP7421278 A JP 7421278A JP 7421278 A JP7421278 A JP 7421278A JP S551842 A JPS551842 A JP S551842A
Authority
JP
Japan
Prior art keywords
soln
desulfurizer
contg
filtrate
crystal
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
JP7421278A
Other languages
Japanese (ja)
Other versions
JPS593209B2 (en
Inventor
Yoshiaki Kinoshita
Koji Kashima
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.)
TOA SEKIYU KK
Toa Oil Co Ltd
Nippon Steel Eco Tech Corp
Original Assignee
TOA SEKIYU KK
Toa Oil Co Ltd
Nittetsu Kakoki KK
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 TOA SEKIYU KK, Toa Oil Co Ltd, Nittetsu Kakoki KK filed Critical TOA SEKIYU KK
Priority to JP53074212A priority Critical patent/JPS593209B2/en
Publication of JPS551842A publication Critical patent/JPS551842A/en
Publication of JPS593209B2 publication Critical patent/JPS593209B2/en
Expired legal-status Critical Current

Links

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  • Treating Waste Gases (AREA)

Abstract

PURPOSE: To maintain the activity of an absorbing soln. in a desulfurizer for treating H2S-contg. gas and to recover effective components such as redox catalyst in the used soln. by drawing out a fixed quantity of inert salt formed and accumulated in the desulfurizer.
CONSTITUTION: Part of an absorbing soln. in H2S desulfurizer 1 using redox catalyst is drawn out, supplied to cooling crystallizer 2, and cooled to 3W8°C to crystallize Na2SO4.10H2O alone in the soln. This crystal-contg. soln. is filtration-separated into Na2SO4.10H2O cake 5 and filtrate 4 in crystal separtor 3, and filtrate 4 is fed to heater 7, heated indirectly, and concentrated by evaporating water in concn. crystallizer 8 to such a degree that Na2S2O3 is not concentrated. In crystallizer 8 most of org. redox catalyst and part of H2S absorbing alkali salt are crystallized. The crystal-contg. filtrate is fed to crystal separator 10 and filtration-separated into catalyst-contg. effective component cake 12 and conc. mother liquor. The liquor is fed to the third process. Cake 12 is adjusted to a suitable concn. in recovered effective salt disolving vessel 18 together with filtrate from the third process, and the resulting soln. is returned to desulfurizer 1.
COPYRIGHT: (C)1980,JPO&Japio
JP53074212A 1978-06-21 1978-06-21 Post-treatment method for desulfurization absorption liquid Expired JPS593209B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53074212A JPS593209B2 (en) 1978-06-21 1978-06-21 Post-treatment method for desulfurization absorption liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53074212A JPS593209B2 (en) 1978-06-21 1978-06-21 Post-treatment method for desulfurization absorption liquid

Publications (2)

Publication Number Publication Date
JPS551842A true JPS551842A (en) 1980-01-09
JPS593209B2 JPS593209B2 (en) 1984-01-23

Family

ID=13540648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53074212A Expired JPS593209B2 (en) 1978-06-21 1978-06-21 Post-treatment method for desulfurization absorption liquid

Country Status (1)

Country Link
JP (1) JPS593209B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101966424A (en) * 2010-09-09 2011-02-09 攀钢集团钢铁钒钛股份有限公司 Method for removing sulfate ions and chloride ions in organic amine absorbent
CN111298627A (en) * 2019-12-13 2020-06-19 南京工业大学 Flue gas desulfurization system and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6160011U (en) * 1984-09-07 1986-04-23

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101966424A (en) * 2010-09-09 2011-02-09 攀钢集团钢铁钒钛股份有限公司 Method for removing sulfate ions and chloride ions in organic amine absorbent
CN111298627A (en) * 2019-12-13 2020-06-19 南京工业大学 Flue gas desulfurization system and method

Also Published As

Publication number Publication date
JPS593209B2 (en) 1984-01-23

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