GB1097306A - Improvements in or relating to waste gas purification - Google Patents

Improvements in or relating to waste gas purification

Info

Publication number
GB1097306A
GB1097306A GB1157164A GB1157164A GB1097306A GB 1097306 A GB1097306 A GB 1097306A GB 1157164 A GB1157164 A GB 1157164A GB 1157164 A GB1157164 A GB 1157164A GB 1097306 A GB1097306 A GB 1097306A
Authority
GB
United Kingdom
Prior art keywords
flue gas
relating
waste gas
gas purification
reaction
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
GB1157164A
Inventor
John Kerr
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.)
Peter Spence and Sons Ltd
Original Assignee
Peter Spence and Sons Ltd
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 Peter Spence and Sons Ltd filed Critical Peter Spence and Sons Ltd
Priority to GB1157164A priority Critical patent/GB1097306A/en
Priority to FR9510A priority patent/FR1428721A/en
Priority to DE19651567787 priority patent/DE1567787A1/en
Priority to NL6503479A priority patent/NL6503479A/xx
Priority to BE661381D priority patent/BE661381A/xx
Publication of GB1097306A publication Critical patent/GB1097306A/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
    • C01B17/0426—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
    • 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
    • B01D53/50—Sulfur oxides
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)

Abstract

SO2 is removed from flue gas containing not more than 5% by wt. SO2 by the Claus reaction: 2H2S + SO2 --> 2H2O + 3S in the presence of a catalyst, the H2S being generated outside the flue gas and thereafter mixed with the flue gas. Preferably, the H2S is in sub-stoichiometric proportions (e.g. 50-90%) and the reaction is carried out at 100-150 DEG C. with activated alumina which may be regenerated by heating to above 445 DEG C. in an oxygen-free atmosphere, e.g. de-oxidized flue gases, to vaporize the sulphur, part of which may be used to form H2S. Other catalysts mentioned as suitable are active titania, mixtures of iron and aluminium oxides, zeolites and firebrick.
GB1157164A 1964-03-19 1964-03-19 Improvements in or relating to waste gas purification Expired GB1097306A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB1157164A GB1097306A (en) 1964-03-19 1964-03-19 Improvements in or relating to waste gas purification
FR9510A FR1428721A (en) 1964-03-19 1965-03-17 Waste gas purification process
DE19651567787 DE1567787A1 (en) 1964-03-19 1965-03-17 Process for cleaning exhaust gases
NL6503479A NL6503479A (en) 1964-03-19 1965-03-19
BE661381D BE661381A (en) 1964-03-19 1965-03-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1157164A GB1097306A (en) 1964-03-19 1964-03-19 Improvements in or relating to waste gas purification

Publications (1)

Publication Number Publication Date
GB1097306A true GB1097306A (en) 1968-01-03

Family

ID=9988694

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1157164A Expired GB1097306A (en) 1964-03-19 1964-03-19 Improvements in or relating to waste gas purification

Country Status (4)

Country Link
BE (1) BE661381A (en)
DE (1) DE1567787A1 (en)
GB (1) GB1097306A (en)
NL (1) NL6503479A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059548A1 (en) * 1981-03-02 1982-09-08 Standard Oil Company Method and apparatus for treating sulfur-containing gas stream

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059548A1 (en) * 1981-03-02 1982-09-08 Standard Oil Company Method and apparatus for treating sulfur-containing gas stream

Also Published As

Publication number Publication date
NL6503479A (en) 1965-09-20
DE1567787A1 (en) 1970-08-20
BE661381A (en) 1965-07-16

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