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GB872984A - Process for the removal of sulphur trioxide from hot gases - Google Patents

Process for the removal of sulphur trioxide from hot gases

Info

Publication number
GB872984A
GB872984A GB1831659A GB1831659A GB872984A GB 872984 A GB872984 A GB 872984A GB 1831659 A GB1831659 A GB 1831659A GB 1831659 A GB1831659 A GB 1831659A GB 872984 A GB872984 A GB 872984A
Authority
GB
United Kingdom
Prior art keywords
gas
adsorption
heat exchanger
agent
adsorbent
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
GB1831659A
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.)
Reinluft GmbH
Original Assignee
Reinluft GmbH
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 Reinluft GmbH filed Critical Reinluft GmbH
Publication of GB872984A publication Critical patent/GB872984A/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
    • B01D53/02—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 by adsorption, e.g. preparative gas chromatography
    • B01D53/04—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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • 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
    • B01D53/02—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 by adsorption, e.g. preparative gas chromatography
    • B01D53/06—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 by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • B01D53/08—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 by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds according to the "moving bed" method
    • 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
    • B01D53/508—Sulfur oxides by treating the gases with solids
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Treating Waste Gases (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

<PICT:0872984/III/1> Sulphur trioxide is removed from a hot gas by bringing the gas, at a temperature in the range 150 DEG C. to 250 DEG C., into contact with a free carbon-containing adsorption agent, which may have initially low surface activity (e.g. charcoal, peat coke, semi-coke, or lignitic carbonisation coke) or may be active charcoal, for the adsorption of SO3 as such, and subsequently heating the adsorption agent in the range of 300 DEG C. to 600 DEG C. to convert the SO3 to SO2 and regenerate the agent by driving off the SO2 produced. Where the gas also contains SO2, this may be removed by contacting with more of the adsorption agent below 200 DEG C., and such adsorption agent may be subsequently used in the SO3 adsorption stage. Heat may be removed from the gas in a heat exchanger between the stages. As shown, SO3-containing gas enters the adsorber 1 through the inlet 2 and leaves by an outlet 3 to pass to a heat exchanger 4, finally leaving at 7, cold air passing into the heat exchanger 4 at 5 and leaving for use as combustion gas at 6. The used adsorbent passes to a regenerator 9 where it is heated in the range 300-600 DEG C., the SO2 produced issuing at 10 and the regenerated adsorbent passing into a separating screen 11 where adsorbent fines and ash carried by the gas are removed. Where both SO3 and SO2 are to be removed, the adsorber is divided into upper and lower sections, the hot gas being introduced into the lower section, where SO3 is removed, and the exit gas being led back, after passage through a heat exchanger, into the upper section, where SO2 is removed. In both cases the regenerated adsorbent is recycled to the top of the adsorber. Steam, metal salts, or other catalytic materials promoting oxidation by free oxygen may be added. A hot scavenging gas, e.g. part of the gas produced by regeneration and appropriately heated, may be used in the regenerator, and the sulphur dioxide may be recovered from the regenerator or scavenging gas by washing with an aqueous solution and/or organic solvent or by adsorption on solid material, and the heat contained in the regenerated adsorbent may be used to redistill the sulphur dioxide from the washing agent or solid material. Specification 824,517 is referred to.
GB1831659A 1958-07-31 1959-05-29 Process for the removal of sulphur trioxide from hot gases Expired GB872984A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1958R0023795 DE1262233C2 (en) 1958-07-31 1958-07-31 Process for the removal of sulfur oxide and possibly sulfur dioxide from hot gases, in particular from furnace exhaust gases

Publications (1)

Publication Number Publication Date
GB872984A true GB872984A (en) 1961-07-19

Family

ID=7401505

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1831659A Expired GB872984A (en) 1958-07-31 1959-05-29 Process for the removal of sulphur trioxide from hot gases

Country Status (3)

Country Link
DE (1) DE1262233C2 (en)
FR (1) FR1231322A (en)
GB (1) GB872984A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1261266B (en) * 1963-08-23 1968-02-15 Bergwerksverband Gmbh Process for the desulphurization of flue gases
DE1289606B (en) * 1964-01-07 1969-02-20 Aquitaine Petrole Process for the desulphurization of exhaust gases
DE1291048B (en) * 1965-05-18 1969-03-20 Kogyokaihatsu Kenkyusho Process for removing sulfur oxide from combustion exhaust gases
DE1544108B1 (en) * 1964-07-15 1970-06-18 Zieren Chemiebau Gmbh Dr A Process for the preparation of an activatable adsorbent
JPS5099957A (en) * 1974-01-09 1975-08-08
US4134727A (en) * 1976-08-12 1979-01-16 Betz Laboratories, Inc. Aqueous solution of sodium metasilicate and N-aminoethyl ethanolamine as a cold-end additive
US4134728A (en) * 1976-08-12 1979-01-16 Betz Laboratories, Inc. N-aminoethyl ethanolamine as a cold-end additive
US4134729A (en) * 1976-08-12 1979-01-16 Betz Laboratories, Inc. Aqueous solution of sodium aluminate and N-aminoethyl ethanolamine as a cold end additive
US4168291A (en) * 1977-09-16 1979-09-18 Betz Laboratories, Inc. Alkanolamines as cold-end additives
US4185071A (en) * 1978-10-13 1980-01-22 Betz Laboratories, Inc. Ethylene polyamines as cold-end additives
WO1992003224A1 (en) * 1990-08-17 1992-03-05 Steag Aktiengesellschaft Process and device for cleaning carbon-containing adsorption agents
CN118026104A (en) * 2024-02-23 2024-05-14 江苏捷创新材料有限责任公司 A method for purifying sulfur trioxide gas

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2373326A1 (en) * 1976-12-13 1978-07-07 Allied Chem Conversion of sulphur di:oxide to sulphur in waste gas - where gas is fed continuously through heated fluidised bed of coal
JPS5532758A (en) * 1978-08-29 1980-03-07 Fuji Electric Co Ltd So3/so2 converting method
US4226831A (en) * 1979-03-16 1980-10-07 Allis-Chalmers Corporation Apparatus for removal of sulfur from gas
EP0037450B1 (en) * 1980-04-04 1984-09-12 Calgon Corporation Process for the removal of acid and acid precursor gases and vapors from gas streams
CN111545012A (en) * 2020-05-14 2020-08-18 中钢集团马鞍山矿山研究总院股份有限公司 Purifying and removing SO in flue gas2And method of use thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE304262C (en) *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1261266B (en) * 1963-08-23 1968-02-15 Bergwerksverband Gmbh Process for the desulphurization of flue gases
DE1289606B (en) * 1964-01-07 1969-02-20 Aquitaine Petrole Process for the desulphurization of exhaust gases
DE1544108B1 (en) * 1964-07-15 1970-06-18 Zieren Chemiebau Gmbh Dr A Process for the preparation of an activatable adsorbent
DE1291048B (en) * 1965-05-18 1969-03-20 Kogyokaihatsu Kenkyusho Process for removing sulfur oxide from combustion exhaust gases
JPS5099957A (en) * 1974-01-09 1975-08-08
US4134728A (en) * 1976-08-12 1979-01-16 Betz Laboratories, Inc. N-aminoethyl ethanolamine as a cold-end additive
US4134727A (en) * 1976-08-12 1979-01-16 Betz Laboratories, Inc. Aqueous solution of sodium metasilicate and N-aminoethyl ethanolamine as a cold-end additive
US4134729A (en) * 1976-08-12 1979-01-16 Betz Laboratories, Inc. Aqueous solution of sodium aluminate and N-aminoethyl ethanolamine as a cold end additive
US4168291A (en) * 1977-09-16 1979-09-18 Betz Laboratories, Inc. Alkanolamines as cold-end additives
US4185071A (en) * 1978-10-13 1980-01-22 Betz Laboratories, Inc. Ethylene polyamines as cold-end additives
WO1992003224A1 (en) * 1990-08-17 1992-03-05 Steag Aktiengesellschaft Process and device for cleaning carbon-containing adsorption agents
US5405812A (en) * 1990-08-17 1995-04-11 Steag Aktiengesellschaft Method and arrangement for purifying a carbon-containing adsorption medium
CN118026104A (en) * 2024-02-23 2024-05-14 江苏捷创新材料有限责任公司 A method for purifying sulfur trioxide gas

Also Published As

Publication number Publication date
FR1231322A (en) 1960-09-28
DE1262233C2 (en) 1973-02-01
DE1262233B (en) 1968-03-07

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