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JPS56124428A - Conversion of sulfur dioxide contained in combustion waste gas to sulfur - Google Patents

Conversion of sulfur dioxide contained in combustion waste gas to sulfur

Info

Publication number
JPS56124428A
JPS56124428A JP2664780A JP2664780A JPS56124428A JP S56124428 A JPS56124428 A JP S56124428A JP 2664780 A JP2664780 A JP 2664780A JP 2664780 A JP2664780 A JP 2664780A JP S56124428 A JPS56124428 A JP S56124428A
Authority
JP
Japan
Prior art keywords
tower
sulfur
waste gas
combustion waste
adsorbing
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
JP2664780A
Other languages
Japanese (ja)
Inventor
Toshikatsu Mori
Teruo Kumagai
Shinpei Matsuda
Fumito Nakajima
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2664780A priority Critical patent/JPS56124428A/en
Publication of JPS56124428A publication Critical patent/JPS56124428A/en
Pending legal-status Critical Current

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  • Treating Waste Gases (AREA)

Abstract

PURPOSE: To enhance conversion efficiency of SO2 to S, in recovering S by reducing SO2 in the combustion waste gas to S, by a method wherein SO2 and water are adsorbed and, after water is desorbed, SO2 is desorbed to be reduced.
CONSTITUTION: A combustion waste gas 2 containing SO2 and moisture is introduced into an adsorbing tower 1 and, at the same time, an activated carbon is supplied as an adsorbing agent 3 to adsorb SOx and moisture at a temp. of 100W 200°C. Said adsorbing agent 3 is entered into a water desorbing tower 4 and heated to 200W300°C to desorb only the adsorbed moisture. Subsequently, said adsorbing agent 3 is introduced into a SO2 desorbing tower 6 and heated to 300°C or more to desorb the adsorbed SO2 and a SO2 containing gas is introduced into a reduction tower 9 to be reduced by a reductive gas such as CH4, CO or the like and, thereby, a solid S is discharged from an outlet 10. The desorbed adsorbing agent 3 is again returned to the adsorbing tower 1.
COPYRIGHT: (C)1981,JPO&Japio
JP2664780A 1980-03-05 1980-03-05 Conversion of sulfur dioxide contained in combustion waste gas to sulfur Pending JPS56124428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2664780A JPS56124428A (en) 1980-03-05 1980-03-05 Conversion of sulfur dioxide contained in combustion waste gas to sulfur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2664780A JPS56124428A (en) 1980-03-05 1980-03-05 Conversion of sulfur dioxide contained in combustion waste gas to sulfur

Publications (1)

Publication Number Publication Date
JPS56124428A true JPS56124428A (en) 1981-09-30

Family

ID=12199230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2664780A Pending JPS56124428A (en) 1980-03-05 1980-03-05 Conversion of sulfur dioxide contained in combustion waste gas to sulfur

Country Status (1)

Country Link
JP (1) JPS56124428A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4477426A (en) * 1983-04-29 1984-10-16 Foster Wheeler Energy Corporation Process for preparing a sulfur dioxide containing gas stream for reaction with coal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4477426A (en) * 1983-04-29 1984-10-16 Foster Wheeler Energy Corporation Process for preparing a sulfur dioxide containing gas stream for reaction with coal

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