GB1450845A - Method for removal of sulphur dioxide from gases - Google Patents

Method for removal of sulphur dioxide from gases

Info

Publication number
GB1450845A
GB1450845A GB2945574A GB2945574A GB1450845A GB 1450845 A GB1450845 A GB 1450845A GB 2945574 A GB2945574 A GB 2945574A GB 2945574 A GB2945574 A GB 2945574A GB 1450845 A GB1450845 A GB 1450845A
Authority
GB
United Kingdom
Prior art keywords
absorbent
rich
aqueous
contacted
aqueous absorbent
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.)
Expired
Application number
GB2945574A
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.)
STUAFFER CHEMICAL CO
Original Assignee
STUAFFER CHEMICAL CO
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 STUAFFER CHEMICAL CO filed Critical STUAFFER CHEMICAL CO
Publication of GB1450845A publication Critical patent/GB1450845A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
    • C01B17/05—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by wet processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

1450845 Sulphur; sulphur dioxide removal from gases STAUFFER CHEMICAL CO 3 July 1974 [11 July 1973] 29455/74 Heading C1A A process for removing sulphur dioxide from a SO 2 -containing gas comprises contacting the gas with aqueous absorbent to form SO 2 -rich absorbent having a pH from 2À8 to 4À5 and contacting the SO 2 -rich absorbent with hydrogen sulphide to form sulphur, the SO 2 -rich absorbent and H 2 S being contacted by forming a mixture which is cocurrently conveyed in a reaction zone under turbulent flow conditions in which the H 2 S is intimately intermixed with the SO 2 -rich absorbent for a sufficient length of time to react a substantial portion of SO 2 in the aqueous absorbent with H 2 S to form S. The aqueous absorbent may be water, sodium phosphate solution, sodium citrate solution or their mixtures. The process may be cyclic. A modification of the above process in which the SO 2 -rich aqueous absorbent is contacted with a gas mixture containing H 2 S and one or more inert gases comprises providing H 2 S in an amount less than that required stoichiometrically to regenerate aqueous absorbent, separating the gas mixture depleted in H 2 S content from partially-regenerated absorbent which is contacted with a second gas mixture containing H 2 S in a stoichiometric excess of that required to regenerate aqueous absorbent.
GB2945574A 1973-07-11 1974-07-03 Method for removal of sulphur dioxide from gases Expired GB1450845A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37836273A 1973-07-11 1973-07-11

Publications (1)

Publication Number Publication Date
GB1450845A true GB1450845A (en) 1976-09-29

Family

ID=23492844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2945574A Expired GB1450845A (en) 1973-07-11 1974-07-03 Method for removal of sulphur dioxide from gases

Country Status (8)

Country Link
JP (1) JPS5039286A (en)
BE (1) BE817573A (en)
CA (1) CA1039030A (en)
DE (1) DE2432749A1 (en)
FR (1) FR2236546B1 (en)
GB (1) GB1450845A (en)
IT (1) IT1016353B (en)
NL (1) NL7409209A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0170253A2 (en) * 1984-08-02 1986-02-05 Linde Aktiengesellschaft Process for the production of elementary sulphur
DE3607029A1 (en) * 1985-03-08 1986-10-02 Jgc Corp., Tokio/Tokyo METHOD FOR THE DESULURIZATION OF GAS CONTAINING SULFUR HYDROGEN
CN100386303C (en) * 2004-12-27 2008-05-07 西安建筑科技大学 Method for eliminating sulfur dioxide in citrate solution enhanced by ultrasonic
CN100395225C (en) * 2004-12-24 2008-06-18 西安建筑科技大学 Method for deprivig sulfur dioxide in solution of citrate

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5224982A (en) * 1975-08-21 1977-02-24 Tsukishima Kikai Co Ltd Exhaust gas desulfurization process
FR2532190A1 (en) * 1982-08-25 1984-03-02 Raffinage Cie Francaise Device for cold removal of the hydrogen sulphide present in a gaseous mixture by reaction with sulphur dioxide and for the separation of the solid sulphur thus produced.
CA1218516A (en) * 1983-05-02 1987-03-03 John C. Orcutt Treatment of low concentration h.sub.2s gas streams in liquid phase claus reactor
CA1223716A (en) * 1983-11-14 1987-07-07 Raymond J. Donahue Liquid phase claus reaction
AT394955B (en) * 1990-06-06 1992-08-10 Schmid Peter J Process for the purification of flue gases
FR3106063B1 (en) 2020-01-10 2022-06-10 Prevor Int Corrosive gas chemical decontamination system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU615841A3 (en) * 1971-10-18 1978-07-15 Стауффер Кемикал Компани (Фирма) Method of extracting sulfur dioxide from exhaust gases
JPS5228113A (en) * 1975-08-29 1977-03-02 Nippon Concrete Ind Co Ltd Casing for excavating pile driving hole

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0170253A2 (en) * 1984-08-02 1986-02-05 Linde Aktiengesellschaft Process for the production of elementary sulphur
EP0170253A3 (en) * 1984-08-02 1987-04-22 Linde Aktiengesellschaft Process for the production of elementary sulphur
DE3607029A1 (en) * 1985-03-08 1986-10-02 Jgc Corp., Tokio/Tokyo METHOD FOR THE DESULURIZATION OF GAS CONTAINING SULFUR HYDROGEN
CN100395225C (en) * 2004-12-24 2008-06-18 西安建筑科技大学 Method for deprivig sulfur dioxide in solution of citrate
CN100386303C (en) * 2004-12-27 2008-05-07 西安建筑科技大学 Method for eliminating sulfur dioxide in citrate solution enhanced by ultrasonic

Also Published As

Publication number Publication date
JPS5039286A (en) 1975-04-11
AU7008674A (en) 1975-12-18
NL7409209A (en) 1975-01-14
CA1039030A (en) 1978-09-26
DE2432749A1 (en) 1975-01-30
BE817573A (en) 1975-01-13
FR2236546A1 (en) 1975-02-07
FR2236546B1 (en) 1980-08-08
IT1016353B (en) 1977-05-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee