GB1330487A - Treatment of waste gases - Google Patents

Treatment of waste gases

Info

Publication number
GB1330487A
GB1330487A GB1330487DA GB1330487A GB 1330487 A GB1330487 A GB 1330487A GB 1330487D A GB1330487D A GB 1330487DA GB 1330487 A GB1330487 A GB 1330487A
Authority
GB
United Kingdom
Prior art keywords
catalyst
sulphur
hydrogen sulphide
oxide
oct
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
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
Publication of GB1330487A publication Critical patent/GB1330487A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C01B17/0404—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process
    • C01B17/0456—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process the hydrogen sulfide-containing gas being a Claus process tail gas
    • 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
    • B01D53/52—Hydrogen sulfide
    • B01D53/523—Mixtures of hydrogen sulfide and sulfur oxides

Abstract

1330487 Treatment of waste gases; sulphur BRITISH GAS CORP 27 Oct 1971 [27 Oct 1970] 51061/70 Heading C1A Sulphur is obtained from a gaseous mixture containing hydrogen sulphide and sulphur dioxide by contacting the mixture in a reactor with a catalyst comprising oxides of cobalt and molybdenum. The catalyst may be supported on a carrier such as bauxite, corundum, active alumina, silica, kaolin, powdered brick, an alkaline earth metal oxide or mixtures thereof. The cobalt oxide is preferably present in amounts of 1-4%, and the molybdenum oxide in amounts of 11-16%, both by weight of the total weight of the catalyst. Any carbon dissulphide or carbon oxysulphide present in the gas stream may be be converted into hydrogen sulphide by steam in the presence of the specified catalyst composition. The process is particularly applicable to Claus kiln effluents. Any hydrogen sulphide remaining may be eliminated by washing with a solution of sodium vanadate and the sodium salt of anthraquinone disulphonic acid (Stretford process) or by passage over zinc oxide; the last traces of sulphur dioxide may be removed by washing with sodium carbonate solution.
GB1330487D 1970-10-27 1971-10-27 Treatment of waste gases Expired GB1330487A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5106170 1970-10-27

Publications (1)

Publication Number Publication Date
GB1330487A true GB1330487A (en) 1973-09-19

Family

ID=10458496

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1330487D Expired GB1330487A (en) 1970-10-27 1971-10-27 Treatment of waste gases

Country Status (2)

Country Link
CA (1) CA1004831A (en)
GB (1) GB1330487A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0159730A2 (en) * 1984-03-27 1985-10-30 Shell Internationale Researchmaatschappij B.V. Process for the removal of sulphur compounds from off-gases

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0159730A2 (en) * 1984-03-27 1985-10-30 Shell Internationale Researchmaatschappij B.V. Process for the removal of sulphur compounds from off-gases
EP0159730A3 (en) * 1984-03-27 1989-01-04 Shell Internationale Researchmaatschappij B.V. Process for the removal of sulphur compounds from off-gases

Also Published As

Publication number Publication date
CA1004831A (en) 1977-02-08

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees