GB782011A - Improvements relating to the recovery of sulphur values from waste gas as sulphuric acid - Google Patents

Improvements relating to the recovery of sulphur values from waste gas as sulphuric acid

Info

Publication number
GB782011A
GB782011A GB17252/52A GB1725252A GB782011A GB 782011 A GB782011 A GB 782011A GB 17252/52 A GB17252/52 A GB 17252/52A GB 1725252 A GB1725252 A GB 1725252A GB 782011 A GB782011 A GB 782011A
Authority
GB
United Kingdom
Prior art keywords
gas
sulphur
catalyst
temperature
sulphuric acid
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
GB17252/52A
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.)
Chemiebau Dr A Zieren GmbH and KG
Original Assignee
Chemiebau Dr A Zieren GmbH and KG
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 Chemiebau Dr A Zieren GmbH and KG filed Critical Chemiebau Dr A Zieren GmbH and KG
Publication of GB782011A publication Critical patent/GB782011A/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
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/90—Separation; Purification
    • 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
    • C01B17/48—Sulfur dioxide; Sulfurous acid
    • C01B17/50—Preparation of sulfur dioxide
    • C01B17/60—Isolation of sulfur dioxide from gases
    • 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
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation
    • C01B17/76—Preparation by contact processes
    • 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
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation
    • C01B17/76—Preparation by contact processes
    • C01B17/78—Preparation by contact processes characterised by the catalyst used
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F13/00—Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like
    • D01F13/02—Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like of cellulose, cellulose derivatives or proteins
    • 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
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
    • 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
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Materials Engineering (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)

Abstract

Waste gas containing hydrogen sulphide and carbon disulphide both in such low concentration that the gas mixture is non-inflammable, is treated for the recovery of sulphur values therein as sulphuric acid by catalytic oxidation. The waste gas, containing or mixed with oxygen or air, is pre-heated by heat exchange with already reacted gas to a temperature at which reaction will take place over a catalyst for the production of sulphur trioxide, the pre-heated gas being passed over such a catalyst and the sulphur trioxide formed converted into sulphuric acid in known manner. The waste gas may or may not also contain carbon oxysulphide and/or sulphur. The invention is particularly concerned with waste gases occuring in viscose manufacture. According to an example a waste gas mixture which is saturated with moisture at 25 DEG C. and contains 0.61 per cent carbon disulphide and 0.79 per cent hydrogen sulphide is pre-heated by already reacted gas to 200 DEG C. and passed over a vanadium catalyst arranged in layers. The reacted gas is then cooled by the pre-heating of the incoming gas to a temperature of 260-360 DEG C., at which temperature formation of condensate in the reacted gas cannot take place. The reacted gas is then passed through a tower fed with 78 per cent sulphuric acid which circulates through a cooler. The acid mist formed is electrostatically precipitated, if desired after moistening the gas with water and the acid flowing from the electro filter may be passed to the cycle of the absorption tower. The catalytic apparatus is preferably arranged for a reversal of the direction of flow of gas whereby the two ends of the catalyst bed are successively subjected to a gas entry temperature of about 200 and a gas exit temperature of about 400 DEG C. Conventional catalyst such as the metals of group 1 and 3-8 of the periodic table may be used and such catalysts may be regenerated by treating them at above 400 DEG C. with sulphur dioxide and excess of oxygen.
GB17252/52A 1951-07-18 1952-07-08 Improvements relating to the recovery of sulphur values from waste gas as sulphuric acid Expired GB782011A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE782011X 1951-07-18

Publications (1)

Publication Number Publication Date
GB782011A true GB782011A (en) 1957-08-28

Family

ID=6693025

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17252/52A Expired GB782011A (en) 1951-07-18 1952-07-08 Improvements relating to the recovery of sulphur values from waste gas as sulphuric acid

Country Status (3)

Country Link
BE (1) BE512868A (en)
FR (1) FR1068669A (en)
GB (1) GB782011A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0787840A1 (en) * 1996-02-06 1997-08-06 Ing. A. Maurer Sa Process for the production of viscose products
EP0852159A2 (en) * 1997-01-06 1998-07-08 Haldor Topsoe A/S Process for the desulphurization of gaseous substrate
EP2878358A1 (en) * 2013-12-02 2015-06-03 Haldor Topsoe A/S Catalytic oxidation of a gas comprising hydrogen sulfide
WO2015082351A1 (en) * 2013-12-02 2015-06-11 Haldor Topsøe A/S Catalytic oxidation of a gas comprising hydrogen sulfide

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0787840A1 (en) * 1996-02-06 1997-08-06 Ing. A. Maurer Sa Process for the production of viscose products
EP0852159A2 (en) * 1997-01-06 1998-07-08 Haldor Topsoe A/S Process for the desulphurization of gaseous substrate
EP0852159A3 (en) * 1997-01-06 1999-08-11 Haldor Topsoe A/S Process for the desulphurization of gaseous substrate
AU728951B2 (en) * 1997-01-06 2001-01-18 Haldor Topsoe A/S Process for the desulphurization of gaseous substrate
EP2878358A1 (en) * 2013-12-02 2015-06-03 Haldor Topsoe A/S Catalytic oxidation of a gas comprising hydrogen sulfide
WO2015082351A1 (en) * 2013-12-02 2015-06-11 Haldor Topsøe A/S Catalytic oxidation of a gas comprising hydrogen sulfide

Also Published As

Publication number Publication date
FR1068669A (en) 1954-06-30
BE512868A (en) 1900-01-01

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