JPS553858A - Desulfurization method of exhaust gas - Google Patents

Desulfurization method of exhaust gas

Info

Publication number
JPS553858A
JPS553858A JP7715878A JP7715878A JPS553858A JP S553858 A JPS553858 A JP S553858A JP 7715878 A JP7715878 A JP 7715878A JP 7715878 A JP7715878 A JP 7715878A JP S553858 A JPS553858 A JP S553858A
Authority
JP
Japan
Prior art keywords
caco
column
liquid
exhaust gas
caso
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
JP7715878A
Other languages
Japanese (ja)
Inventor
Tomijiro Morita
Masakazu Takaiwa
Noriharu Matsuda
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.)
Kureha Corp
Original Assignee
Kureha Corp
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 Kureha Corp filed Critical Kureha Corp
Priority to JP7715878A priority Critical patent/JPS553858A/en
Priority to US06/047,083 priority patent/US4331640A/en
Priority to CA329,908A priority patent/CA1112022A/en
Priority to DE2925547A priority patent/DE2925547C2/en
Publication of JPS553858A publication Critical patent/JPS553858A/en
Pending legal-status Critical Current

Links

Landscapes

  • Treating Waste Gases (AREA)

Abstract

PURPOSE: To prevent the oxidation of alkali sulfurous acid by a filtration in the atmosphere of CO2 to be produced from the na-neutralization in a method in which a liquid having SO2 absorbed is neutralized by CaCO3 and then, CaSO3 thus formed is filtered and discharged outside the system while a part of the filtrate is circulated for absorbing SO2.
CONSTITUTION: An exhaust gas 1 containing SO2 is introduced into a absorption column 2 to be brought into contact with a absorption liquid and then discharged from the top of the column. The liquid from the column is reacted in a reaction tank to neutralize CaCO3. Thus, CaSO3 is formed while CO2 is generated. When the slurry of CaCO3 undergoes a vacuum filtration with a vacuum pump covered by a cover 7, the ambient gas in the cover is filtered with a filter device adapted to suck gas only generated in the previous reaction tank 4 through a pipe 9.
COPYRIGHT: (C)1980,JPO&Japio
JP7715878A 1978-06-26 1978-06-26 Desulfurization method of exhaust gas Pending JPS553858A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP7715878A JPS553858A (en) 1978-06-26 1978-06-26 Desulfurization method of exhaust gas
US06/047,083 US4331640A (en) 1978-06-26 1979-06-11 Process for removing sulfur dioxide from an exhaust gas containing the same
CA329,908A CA1112022A (en) 1978-06-26 1979-06-15 Process for removing sulfur dioxide from an exhaust gas containing the same
DE2925547A DE2925547C2 (en) 1978-06-26 1979-06-25 Process for removing sulfur dioxide from exhaust gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7715878A JPS553858A (en) 1978-06-26 1978-06-26 Desulfurization method of exhaust gas

Publications (1)

Publication Number Publication Date
JPS553858A true JPS553858A (en) 1980-01-11

Family

ID=13625977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7715878A Pending JPS553858A (en) 1978-06-26 1978-06-26 Desulfurization method of exhaust gas

Country Status (1)

Country Link
JP (1) JPS553858A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0637335A (en) * 1992-07-15 1994-02-10 Naoshige Tamamushi Static induction diode having buried structure or cut-in structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0637335A (en) * 1992-07-15 1994-02-10 Naoshige Tamamushi Static induction diode having buried structure or cut-in structure

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