GB1504706A - Gas purification liquors - Google Patents

Gas purification liquors

Info

Publication number
GB1504706A
GB1504706A GB3461674A GB3461674A GB1504706A GB 1504706 A GB1504706 A GB 1504706A GB 3461674 A GB3461674 A GB 3461674A GB 3461674 A GB3461674 A GB 3461674A GB 1504706 A GB1504706 A GB 1504706A
Authority
GB
United Kingdom
Prior art keywords
solution
nucleus
sulphur
quinoid
quinone
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
GB3461674A
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.)
British Gas Corp
Original Assignee
British Gas 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 British Gas Corp filed Critical British Gas Corp
Priority to GB3461674A priority Critical patent/GB1504706A/en
Publication of GB1504706A publication Critical patent/GB1504706A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/11—Purification; Separation; Use of additives by absorption, i.e. purification or separation of gaseous hydrocarbons with the aid of liquids
    • 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
    • B01D53/14—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 by absorption
    • B01D53/1493—Selection of liquid materials for use as absorbents

Abstract

1504706 Removing HIS from gases BRITISH GAS CORP 5 Aug 1975 [6 Aug 1974] 34616/74 Heading C1A A composition for absorbing H 2 S from gases and liquid hydrocarbons comprises an aqueous alkaline solution, e.g. pH 8À5-9À5) containing ions of a metal capable of exhibiting at least two valence states and a quinone of formula where A is an aryl or quinoid nucleus, X' and X<SP>2</SP> are OH when A is aryl or are the O atoms of the quinoid nucleus, R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are H or solubilizing groups, e.g. SO 3 H, OH, NO 2 or ONO, provided that when A is an anthracyl or anthraquinoid nucleus, not more than one of R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> is SO 3 H. The quinone may be p-benzoquinone, hydroquinone, H-bonded quinhydrones, 1,4 - naphthaquinone - 2 - SO 3 H, 1 - SO 3 H - 6 - NO 2 (or - 7 - NO 2 )anthraquinone or 1 - SO 3 H - 6 - OH (or -7 - OH) - anthraquinone. The metal ions may be derived from a vanadate, e.g. Na ammonium vanadate or Na orthovanadate, or a salt of Fe or Co, e.g. FeSO 4 or FeCl 3 . A chelating agent may be added. In operation, H 2 S is absorbed in the solution with formation of sulphur and reduction of the solution, which may be reoxidized after removal of the sulphur. Alternatively, reoxidation and sulphur removal may be effected simultaneously by blowing air through the used solution.
GB3461674A 1975-08-05 1975-08-05 Gas purification liquors Expired GB1504706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3461674A GB1504706A (en) 1975-08-05 1975-08-05 Gas purification liquors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3461674A GB1504706A (en) 1975-08-05 1975-08-05 Gas purification liquors

Publications (1)

Publication Number Publication Date
GB1504706A true GB1504706A (en) 1978-03-22

Family

ID=10367874

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3461674A Expired GB1504706A (en) 1975-08-05 1975-08-05 Gas purification liquors

Country Status (1)

Country Link
GB (1) GB1504706A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325936A (en) 1979-06-20 1982-04-20 Union Oil Company Of California Method for removing hydrogen sulfide from gas streams
US4432962A (en) * 1979-06-20 1984-02-21 Union Oil Company Of California Method for removing hydrogen sulfide from gas streams
EP0787225A1 (en) * 1994-10-13 1997-08-06 Catachem, Inc. Method for minimizing solvent degradation and corrosion in amine solvent treating systems

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325936A (en) 1979-06-20 1982-04-20 Union Oil Company Of California Method for removing hydrogen sulfide from gas streams
US4432962A (en) * 1979-06-20 1984-02-21 Union Oil Company Of California Method for removing hydrogen sulfide from gas streams
EP0787225A1 (en) * 1994-10-13 1997-08-06 Catachem, Inc. Method for minimizing solvent degradation and corrosion in amine solvent treating systems
EP0787225A4 (en) * 1994-10-13 1998-01-14 Catachem Inc Method for minimizing solvent degradation and corrosion in amine solvent treating systems

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed