CH559058A5 - Sepg. solvents from air by adsorption - using steam for desorption which is reused after condensation and sepn. - Google Patents

Sepg. solvents from air by adsorption - using steam for desorption which is reused after condensation and sepn.

Info

Publication number
CH559058A5
CH559058A5 CH1376371A CH1376371A CH559058A5 CH 559058 A5 CH559058 A5 CH 559058A5 CH 1376371 A CH1376371 A CH 1376371A CH 1376371 A CH1376371 A CH 1376371A CH 559058 A5 CH559058 A5 CH 559058A5
Authority
CH
Switzerland
Prior art keywords
steam
air
water
solvents
sepg
Prior art date
Application number
CH1376371A
Original Assignee
Technochemie Ag Maschf
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 Technochemie Ag Maschf filed Critical Technochemie Ag Maschf
Priority to CH1376371A priority Critical patent/CH559058A5/en
Publication of CH559058A5 publication Critical patent/CH559058A5/en

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
    • B01D53/0407—Constructional details of adsorbing systems
    • 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
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/206—Organic halogen compounds
    • B01D2257/2064—Chlorine
    • 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
    • B01D2259/402—Further details for adsorption processes and devices using two beds
    • 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
    • B01D53/0407—Constructional details of adsorbing systems
    • B01D53/0438—Cooling or heating systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)
  • Separation Of Gases By Adsorption (AREA)

Abstract

Appts. for recovering (virtually) water-insoluble solvents from air, operates by passing the air through an activated carbon adsorber, then desorbing this with steam, condensing the steam, then passing it to a separator, where the solvent is recovered by the difference in densities. The water resulting from this separation is recycled to the the boiler in which the steam is produced. Pref. the separator is below the adsorber vessel and above the steam generator, so that the condensed and sepd. water flows under gravity to the boiler esp. via a carbon dust filter. Water treatment equipment for maintaining the feedwater neutral or alkali may be provided. Used esp. for recovering perchlorethylene and trichloroethylene. No contaminated water is discharged to drains.
CH1376371A 1971-09-21 1971-09-21 Sepg. solvents from air by adsorption - using steam for desorption which is reused after condensation and sepn. CH559058A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH1376371A CH559058A5 (en) 1971-09-21 1971-09-21 Sepg. solvents from air by adsorption - using steam for desorption which is reused after condensation and sepn.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1376371A CH559058A5 (en) 1971-09-21 1971-09-21 Sepg. solvents from air by adsorption - using steam for desorption which is reused after condensation and sepn.

Publications (1)

Publication Number Publication Date
CH559058A5 true CH559058A5 (en) 1975-02-28

Family

ID=4395101

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1376371A CH559058A5 (en) 1971-09-21 1971-09-21 Sepg. solvents from air by adsorption - using steam for desorption which is reused after condensation and sepn.

Country Status (1)

Country Link
CH (1) CH559058A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524338A1 (en) * 1982-04-02 1983-10-07 Peabody France DEVICE FOR PARTICULARLY SAVING ENERGY IN THE RECOVERY OF ACTIVE CARBONS CONTAINING ADSORBED SOLVENTS
EP0166488A2 (en) * 1981-03-09 1986-01-02 Bycosin AB Apparatus for recovering solvent from exhaust air

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0166488A2 (en) * 1981-03-09 1986-01-02 Bycosin AB Apparatus for recovering solvent from exhaust air
EP0166488A3 (en) * 1981-03-09 1987-05-06 Bycosin AB Apparatus for recovering solvent from exhaust air
FR2524338A1 (en) * 1982-04-02 1983-10-07 Peabody France DEVICE FOR PARTICULARLY SAVING ENERGY IN THE RECOVERY OF ACTIVE CARBONS CONTAINING ADSORBED SOLVENTS
EP0091355A1 (en) * 1982-04-02 1983-10-12 T.G.I. Traitement de Gaz et Génie Industriel Process and apparatus especially for saving energy at the regeneration of active carbons containing adsorbed solvents

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Legal Events

Date Code Title Description
PL Patent ceased