GB966404A - Process for separating hydrogen sulphide and carbon disulphide from impure air containing them - Google Patents

Process for separating hydrogen sulphide and carbon disulphide from impure air containing them

Info

Publication number
GB966404A
GB966404A GB8647/62A GB864762A GB966404A GB 966404 A GB966404 A GB 966404A GB 8647/62 A GB8647/62 A GB 8647/62A GB 864762 A GB864762 A GB 864762A GB 966404 A GB966404 A GB 966404A
Authority
GB
United Kingdom
Prior art keywords
bed
air
sulphur
carbon
passing
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
GB8647/62A
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.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of GB966404A publication Critical patent/GB966404A/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
    • 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
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/70—Compounds containing carbon and sulfur, e.g. thiophosgene
    • 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
    • B01D2257/304—Hydrogen sulfide
    • 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
    • B01D2257/306—Organic sulfur compounds, e.g. mercaptans
    • 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
    • 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
    • B01D2259/406—Further details for adsorption processes and devices using more than four beds
    • B01D2259/4061—Further details for adsorption processes and devices using more than four beds using five beds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treating Waste Gases (AREA)

Abstract

In concurrently separating CS2 and H2S from air, e.g. the effluent from viscose processing plants, by passing said air through active carbon and then regenerating the carbon with steam (to remove CS2) and by extraction with CS2 (to remove S formed by oxidation of H2S) there is added to the impure air an amount of ammonia less than 0.02% by volume thereof. Where there is a lower content of H2S than CS2, and since the S is formed in a small zone of the active carbon, the carbon may be regenerated with respect to CS2 a number of times, e.g. up to 20 times, before regenerating with respect to sulphur. Fig. 1 shows a system adapted for cyclic operation of the process in several beds of active carbon. Contaminated air from line 12 is mixed with ammonia introduced at 14 and passed upwardly through bed 1. In bed 2, CS2 is stripped from absorbent by first flushing with an inert gas to remove air and then passing in steam: the hot vapours are passed through a heating coil 23 to vaporize a solution of sulphur in CS2 obtained from a subsequent bed, cooled (coolers 25 and 26) and the water and CS2 separated. The latter is employed subsequently to extract sulphur in <PICT:0966404/C1/1> S by means of recovered CS2 from reservoir 10; the CS2 may be introduced by means of an intermediate baffle only over the lower zone of the activated carbon. Sulphur is recovered from the extracted solution by passing into vaporizer 6 in which the CS2 is evaporated whilst the sulphur passes to melting apparatus 7 which is indirectly steam-heated. In bed 5, bed 4. In bed 3 warm air or an inert gas from line 32 and heater 31 dries and cools the bed, which may then be re-employed for purification of air. Bed 4 is undergoing extraction of CS2 used for extraction is removed as in bed 2 and thereafter the bed is dried similarly to bed 3. In Fig. 2 (not shown), heat from the vapours emerging from bed 2 is conveyed to the vaporizer 9 by means of a heat-exchanger liquid circulating between heater 23 and an exchanger in line 22. The vapours pass from the exchanger to cooler 26.
GB8647/62A 1961-03-17 1962-03-06 Process for separating hydrogen sulphide and carbon disulphide from impure air containing them Expired GB966404A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM48427A DE1244119B (en) 1961-03-17 1961-03-17 Process and device for separating hydrogen sulfide and carbon disulfide from industrial exhaust air

Publications (1)

Publication Number Publication Date
GB966404A true GB966404A (en) 1964-08-12

Family

ID=7306225

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8647/62A Expired GB966404A (en) 1961-03-17 1962-03-06 Process for separating hydrogen sulphide and carbon disulphide from impure air containing them

Country Status (2)

Country Link
DE (1) DE1244119B (en)
GB (1) GB966404A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1057516A1 (en) * 1999-04-21 2000-12-06 Degussa-Hüls Aktiengesellschaft Process for CS2 adsorption
CN106512651A (en) * 2016-11-30 2017-03-22 成都丽雅纤维股份有限公司 Pre-treating method for treating viscose exhaust gas
CN111333037A (en) * 2020-04-15 2020-06-26 大连科利德光电子材料有限公司 System and method for preparing high-purity hydrogen sulfide gas
CN113058424A (en) * 2021-03-26 2021-07-02 新疆中泰创新技术研究院有限责任公司 Method and system for treating waste gas generated in production of viscose fibers containing hydrogen sulfide and carbon disulfide

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054071B (en) * 1956-08-21 1959-04-02 Basf Ag Process for the separation of sulfur compounds from gases and liquids

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1057516A1 (en) * 1999-04-21 2000-12-06 Degussa-Hüls Aktiengesellschaft Process for CS2 adsorption
CN106512651A (en) * 2016-11-30 2017-03-22 成都丽雅纤维股份有限公司 Pre-treating method for treating viscose exhaust gas
CN111333037A (en) * 2020-04-15 2020-06-26 大连科利德光电子材料有限公司 System and method for preparing high-purity hydrogen sulfide gas
CN111333037B (en) * 2020-04-15 2022-11-11 大连科利德光电子材料有限公司 System and method for preparing high-purity hydrogen sulfide gas
CN113058424A (en) * 2021-03-26 2021-07-02 新疆中泰创新技术研究院有限责任公司 Method and system for treating waste gas generated in production of viscose fibers containing hydrogen sulfide and carbon disulfide

Also Published As

Publication number Publication date
DE1244119B (en) 1967-07-13

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