GB1421961A - Process for the reduction of sulphur dioxide - Google Patents

Process for the reduction of sulphur dioxide

Info

Publication number
GB1421961A
GB1421961A GB2014073A GB2014073A GB1421961A GB 1421961 A GB1421961 A GB 1421961A GB 2014073 A GB2014073 A GB 2014073A GB 2014073 A GB2014073 A GB 2014073A GB 1421961 A GB1421961 A GB 1421961A
Authority
GB
United Kingdom
Prior art keywords
reaction
gas
sulphur
stream
sulphur dioxide
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
GB2014073A
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.)
Allied Corp
Original Assignee
Allied Chemical 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 Allied Chemical Corp filed Critical Allied Chemical Corp
Publication of GB1421961A publication Critical patent/GB1421961A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00Sulfur; Compounds thereof
    • C01B17/02Preparation of sulfur; Purification
    • C01B17/04Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
    • C01B17/0404Preparation 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
    • C01B17/0426Preparation 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
    • C01B17/0434Catalyst compositions
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00Sulfur; Compounds thereof
    • C01B17/02Preparation of sulfur; Purification
    • C01B17/04Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
    • C01B17/0473Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by reaction of sulfur dioxide or sulfur trioxide containing gases with reducing agents other than hydrogen sulfide
    • C01B17/0478Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by reaction of sulfur dioxide or sulfur trioxide containing gases with reducing agents other than hydrogen sulfide with hydrocarbons or mixtures containing them

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Treating Waste Gases (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

1421961 Removal of sulphur dioxide from gas streams ALLIED CHEMICAL CORP 27 April 1973 [30 June 1972] 20140/73 Heading C1A Sulphur dioxide in a gas stream is catalytically reduced using a hydrocarbon reducing agent at an elevated temperature, reaction being initiated in the presence of a solid SO 2 -reduction catalyst and also of 0À05 to 3 mol per cent of elemental sulphur vapour (expressed as S s and based on the amount of SO 2 ) that has been added to the SO 2 /hydrocarbon mixture without substantially increasing its volume, and the reaction being carried out wholly within the range 850-2400‹ F. The solid catalyst may be bauxite, alumina, silica, calcium sulphide, vanadium oxides, calcium aluminate and mixtures thereof and may be in the form of small balls or pebbles. Gaseous C 1 to C 4 hydrocarbons are preferred such as natural gas, methane, ethane, propane and the butanes. The SO 2 may be essentially pure or very dilute as in industrial waste gases. When the stream to be purified is a waste gas, the SO 2 content may be upgraded, e.g. an alkaline agent such as sodium sulphide, ammonium sulphite, a metal carbonate or magnesium oxide may be used to strip the SO 2 from the flue gas, the agent being reconstituted and the regenerated SO 2 being recovered for subsequent treatment. Another process which may be used employs a sulphur adsorber such as activated carbon to adsorb the SO 2 which is subsequently desorbed. Organic absorbing media may also be used to absorb the SO 2 which may be recovered. The product of the reduction reaction is H 2 S which is then subjected to a Claus reaction with residual SO 2 in the product stream to recover elemental sulphur.
GB2014073A 1972-06-30 1973-04-27 Process for the reduction of sulphur dioxide Expired GB1421961A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26786372A 1972-06-30 1972-06-30

Publications (1)

Publication Number Publication Date
GB1421961A true GB1421961A (en) 1976-01-21

Family

ID=23020442

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2014073A Expired GB1421961A (en) 1972-06-30 1973-04-27 Process for the reduction of sulphur dioxide

Country Status (11)

Country Link
JP (1) JPS5713483B2 (en)
AU (1) AU467887B2 (en)
CA (1) CA979621A (en)
DE (1) DE2327616A1 (en)
ES (1) ES415394A1 (en)
FR (1) FR2190725B1 (en)
GB (1) GB1421961A (en)
IT (1) IT986414B (en)
NL (1) NL7308925A (en)
SE (1) SE381646B (en)
SU (1) SU552017A3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2503294A (en) * 2012-06-22 2013-12-25 Peter Frank Cross Sulphur dioxide conversion to elemental sulphur by reduction with hydrocarbon fuels
US9987591B2 (en) 2013-03-01 2018-06-05 Le Gaz Integral Sas Method for removing sulphur dioxide from gas streams, using titanium dioxide as catalyst

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039650A (en) * 1976-05-10 1977-08-02 Allied Chemical Corporation Sulfur dioxide reduction

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2043202A (en) * 1932-07-23 1936-06-02 Gen Chemical Corp Method for reducing sulphur dioxide
DE678133C (en) * 1934-02-22 1939-07-11 Axel Rudolf Lindblad Dr Process for the production of sulfur by reducing sulfur dioxide
NL6919238A (en) * 1969-03-24 1970-09-28

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2503294A (en) * 2012-06-22 2013-12-25 Peter Frank Cross Sulphur dioxide conversion to elemental sulphur by reduction with hydrocarbon fuels
US9687780B2 (en) 2012-06-22 2017-06-27 Le Gaz Integral Sas Sulphur dioxide treatment
US9987591B2 (en) 2013-03-01 2018-06-05 Le Gaz Integral Sas Method for removing sulphur dioxide from gas streams, using titanium dioxide as catalyst

Also Published As

Publication number Publication date
FR2190725A1 (en) 1974-02-01
AU5611673A (en) 1974-11-28
FR2190725B1 (en) 1976-04-23
SU552017A3 (en) 1977-03-25
ES415394A1 (en) 1976-02-16
DE2327616A1 (en) 1974-01-17
JPS4964591A (en) 1974-06-22
NL7308925A (en) 1974-01-02
AU467887B2 (en) 1975-12-18
CA979621A (en) 1975-12-16
SE381646B (en) 1975-12-15
JPS5713483B2 (en) 1982-03-17
IT986414B (en) 1975-01-30

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Legal Events

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