GB1211033A - Treatment of waste gases - Google Patents

Treatment of waste gases

Info

Publication number
GB1211033A
GB1211033A GB0741/68A GB174168A GB1211033A GB 1211033 A GB1211033 A GB 1211033A GB 0741/68 A GB0741/68 A GB 0741/68A GB 174168 A GB174168 A GB 174168A GB 1211033 A GB1211033 A GB 1211033A
Authority
GB
United Kingdom
Prior art keywords
sulphur
catalyst
produced
reaction
sufficient
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
GB0741/68A
Inventor
Verner Blakey Sefton
Frederick James Hopton
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.)
Ortech Corp
Original Assignee
Ortech 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 Ortech Corp filed Critical Ortech Corp
Priority to GB0741/68A priority Critical patent/GB1211033A/en
Priority to FR6900325A priority patent/FR2000167A1/fr
Priority to DE19691901171 priority patent/DE1901171B2/en
Priority to BE726756D priority patent/BE726756A/xx
Priority to JP44002297A priority patent/JPS4814305B1/ja
Publication of GB1211033A publication Critical patent/GB1211033A/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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8603—Removing sulfur compounds
    • B01D53/8609—Sulfur oxides
    • 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
    • C01B17/0426—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 characterised by the catalytic conversion
    • C01B17/0439—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 characterised by the catalytic conversion at least one catalyst bed operating below the dew-point of sulfur
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Abstract

1,211,033. Removing SO 2 from waste gases. ONTARIO RESEARCH FOUNDATION. 10 Jan., 1969 [11 Jan., 1968], No. 1741/68. Heading C1A. Sulphur dioxide containing effluent gas is contacted with a reducing gas comprising H 2 S in the presence of a catalyst at a temperature of 50- 150‹ C. whereby the SO 2 is at least partially reduced to sulphur in accordance with the equation: and the sulphur is deposited on the catalyst, and removing the sulphur from the catalyst at least partially by reaction with carbon monoxide at a temperature of from 250-500‹ C. in order to provide regenerated, substantially sulphur free catalyst. The reaction with carbon monoxide preferably occurs at 300-450‹ C. The carbonyl sulphide produced may in turn be hydrolysed to CO 2 and H 2 S which is recycled, further H 2 S being produced if a mixture of CO and H 2 is used for removing the sulphur, steam (removing the necessity for subsequent hydrolysis) and an inert gas, such as N 2 , may also be present. Sufficient H 2 S is used in order to react with all the SO 2 , sufficient CO with or without H 2 is used to react with 2/3 of the sulphur produced, the rest being removed as sulphur vapour in the COS and subsequently removed; sufficient steam is used to hydrolyse all the COS produced. A continuous process for the removal of the catalyst from the sulphur depositing zone to the sulphur removing zone and: thereafter recycling the catalyst, is described. Catalysts disclosed for the sulphur producing stage are Pd, Pt, Rh, promoted iron oxide but preferably activated alumina or bauxite is used. This stage may be broken up into 2 parts: (a) reaction with H 2 S at 250-400‹ C. (b) completion of the reaction at 50-150‹ C. Some CS 2 may be produced especially if hydrocarbons are present in the CO or H 2 . This need not be hydrolysed since CS 2 will reduce SO 2 to S if recycled.
GB0741/68A 1968-01-11 1968-01-11 Treatment of waste gases Expired GB1211033A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB0741/68A GB1211033A (en) 1968-01-11 1968-01-11 Treatment of waste gases
FR6900325A FR2000167A1 (en) 1968-01-11 1969-01-10
DE19691901171 DE1901171B2 (en) 1968-01-11 1969-01-10 METHOD OF REMOVING SULFUR DIOXIDE FROM EXHAUST GASES, IN PARTICULAR SMOKE GASES
BE726756D BE726756A (en) 1968-01-11 1969-01-10
JP44002297A JPS4814305B1 (en) 1968-01-11 1969-01-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0741/68A GB1211033A (en) 1968-01-11 1968-01-11 Treatment of waste gases

Publications (1)

Publication Number Publication Date
GB1211033A true GB1211033A (en) 1970-11-04

Family

ID=9727187

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0741/68A Expired GB1211033A (en) 1968-01-11 1968-01-11 Treatment of waste gases

Country Status (5)

Country Link
JP (1) JPS4814305B1 (en)
BE (1) BE726756A (en)
DE (1) DE1901171B2 (en)
FR (1) FR2000167A1 (en)
GB (1) GB1211033A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961035A (en) 1974-03-27 1976-06-01 Stauffer Chemical Company Process for preparing hydrogen sulfide
US4094961A (en) 1974-11-07 1978-06-13 Ralph M. Parsons Company Hydrogen sulfide production
US4894216A (en) * 1985-10-25 1990-01-16 Societe Nationale Elf Aquitaine (Production) Catalytic process for producing sulphur from H2 S containing sour gas
US4980146A (en) * 1985-10-25 1990-12-25 Societe Nationale Elf Aquitaine (Production) Process for removing sulphur compounds contained in a residual gas
DE3690569C2 (en) * 1985-10-25 1998-10-01 Elf Aquitaine Removing sulphur cpds. from residual gas
CN106621796A (en) * 2016-10-31 2017-05-10 昆明理工大学 Method and device for simultaneously removing carbonyl sulfide and carbon disulfide

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2122407A1 (en) * 1971-01-18 1972-09-01 Parsons Co Ralph M Carbon-sulphur cpds conversion to hydrogen sulphide - over cobalt/molybdenum catalyst in claus sulphur process
FR2190517B1 (en) * 1972-06-29 1975-08-29 Rhone Progil
DE3929227A1 (en) * 1989-09-02 1991-03-07 Koenig & Bauer Ag PAPER RAIL SEPARATION AND HOLDING DEVICE

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961035A (en) 1974-03-27 1976-06-01 Stauffer Chemical Company Process for preparing hydrogen sulfide
US4094961A (en) 1974-11-07 1978-06-13 Ralph M. Parsons Company Hydrogen sulfide production
US4894216A (en) * 1985-10-25 1990-01-16 Societe Nationale Elf Aquitaine (Production) Catalytic process for producing sulphur from H2 S containing sour gas
US4980146A (en) * 1985-10-25 1990-12-25 Societe Nationale Elf Aquitaine (Production) Process for removing sulphur compounds contained in a residual gas
US5077031A (en) * 1985-10-25 1991-12-31 Societe Nationale Elf Aquitaine Catalytic process for producing sulphur from H2 S containing sour gas
DE3690568C2 (en) * 1985-10-25 1998-08-27 Elf Aquitaine Removing sulphur cpds. from residual gas
DE3690569C2 (en) * 1985-10-25 1998-10-01 Elf Aquitaine Removing sulphur cpds. from residual gas
DE3690570C2 (en) * 1985-10-25 1998-10-15 Elf Aquitaine Removing sulphur cpds. from residual gas
CN106621796A (en) * 2016-10-31 2017-05-10 昆明理工大学 Method and device for simultaneously removing carbonyl sulfide and carbon disulfide
CN106621796B (en) * 2016-10-31 2023-06-13 昆明理工大学 Method and device for simultaneously removing carbonyl sulfide and carbon disulfide

Also Published As

Publication number Publication date
DE1901171B2 (en) 1972-03-16
FR2000167A1 (en) 1969-08-29
JPS4814305B1 (en) 1973-05-07
DE1901171A1 (en) 1969-09-04
BE726756A (en) 1969-06-16

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Legal Events

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