GB1533559A - Regeneration of adsorbents - Google Patents

Regeneration of adsorbents

Info

Publication number
GB1533559A
GB1533559A GB48834/75A GB4883475A GB1533559A GB 1533559 A GB1533559 A GB 1533559A GB 48834/75 A GB48834/75 A GB 48834/75A GB 4883475 A GB4883475 A GB 4883475A GB 1533559 A GB1533559 A GB 1533559A
Authority
GB
United Kingdom
Prior art keywords
bed
gas
adsorbed
regeneration
electric current
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
GB48834/75A
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.)
WR Grace and Co
Original Assignee
WR Grace and Co
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 WR Grace and Co filed Critical WR Grace and Co
Publication of GB1533559A publication Critical patent/GB1533559A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/043—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a granular material
    • 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
    • B01D53/26—Drying gases or vapours
    • B01D53/261—Drying gases or vapours by adsorption

Abstract

1533559 Regenerating adsorbent beds W R GRACE & CO 27 Nov 1975 [27 Nov 1974 23 Dec 1974] 48834/75 Heading B1L [Also in Divisions C1A and H5] A bed of adsorbent, e.g. zeolite, having gas, e.g. water vapour, adsorbed thereon is regenerated by passing through the bed a direct electric current or an alternating electric current having a frequency less than 1000 Herz, at a current density low enough to preclude electrolysis of adsorbed gas, and at an energy input sufficient to achieve desorption of the gas through resistance heating. During the regeneration a purge gas or vacuum may be applied to the bed. The electrodes 1 used for bed heating may have an additional function in monitoring the level of gas adsorbed on the bed during the adsorption phase. These may be done by passing an electric current through the bed and monitoring the change in current caused by increasing conductivity as the adsorbed gas content rises. The regeneration may be started at a predetermined such current level or in response to a pre-set timer, dewpoint measurements in the outlet purge gas, bed electrical resistivity signal or regeneration energy consumption.
GB48834/75A 1974-11-27 1975-11-27 Regeneration of adsorbents Expired GB1533559A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52783274A 1974-11-27 1974-11-27
US53528274A 1974-12-23 1974-12-23

Publications (1)

Publication Number Publication Date
GB1533559A true GB1533559A (en) 1978-11-29

Family

ID=27062525

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48834/75A Expired GB1533559A (en) 1974-11-27 1975-11-27 Regeneration of adsorbents

Country Status (9)

Country Link
JP (1) JPS5177582A (en)
DE (1) DE2552803A1 (en)
DK (1) DK533375A (en)
FR (1) FR2292514A1 (en)
GB (1) GB1533559A (en)
IT (1) IT1054660B (en)
NL (1) NL7513726A (en)
NO (1) NO753987L (en)
SE (1) SE415960B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173127A (en) * 1985-03-28 1986-10-08 Casco Products Corp Fuel vapor recovery system for automotive vehicles
US4717401A (en) * 1986-09-24 1988-01-05 Casco Products Corporation Fuel vapor recovery system
US4721846A (en) * 1986-07-02 1988-01-26 Casco Products Corporation Canister heater with PTC wafer
EP0783367A1 (en) * 1994-09-26 1997-07-16 Foster Miller, Inc. Transverse flow self-heating electrically conductive sorption system
ITPD20090028A1 (en) * 2009-02-25 2010-08-26 Moretto Spa METHOD AND PLANT FOR DEHUMIDIFICATION OF MATERIALS IN GRANULAR FORM
CN115608122A (en) * 2022-11-22 2023-01-17 杭州嘉隆气体设备有限公司 Compressed air decarburization drying device and control method

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS607523B2 (en) * 1978-02-10 1985-02-25 住友精密工業株式会社 Dehumidification device
US4312640A (en) * 1979-03-12 1982-01-26 Pall Corporation Heat-reactivatable adsorbent gas fractionator and process
DE3802751C2 (en) * 1988-01-30 2000-03-09 Bosch Gmbh Robert Desiccant cartridge
FR2677765B1 (en) * 1991-06-17 1994-06-17 Commissariat Energie Atomique PROCESS FOR MONITORING THE SATURATION STATE OF A FILTERED ACTIVE CARBON MASS OF A FILTRATION DEVICE AND RESPIRATORY MASK CARTRIDGE USING THE SAME.
TWI608201B (en) * 2016-04-29 2017-12-11 財團法人工業技術研究院 Desiccant wheel

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173127A (en) * 1985-03-28 1986-10-08 Casco Products Corp Fuel vapor recovery system for automotive vehicles
US4721846A (en) * 1986-07-02 1988-01-26 Casco Products Corporation Canister heater with PTC wafer
US4717401A (en) * 1986-09-24 1988-01-05 Casco Products Corporation Fuel vapor recovery system
EP0783367A1 (en) * 1994-09-26 1997-07-16 Foster Miller, Inc. Transverse flow self-heating electrically conductive sorption system
EP0783367A4 (en) * 1994-09-26 1998-05-06 Foster Miller Inc Transverse flow self-heating electrically conductive sorption system
ITPD20090028A1 (en) * 2009-02-25 2010-08-26 Moretto Spa METHOD AND PLANT FOR DEHUMIDIFICATION OF MATERIALS IN GRANULAR FORM
EP2224196A1 (en) * 2009-02-25 2010-09-01 Moretto S.p.A. Dehumidification method of materials in granular form and plant therefor
US8412383B2 (en) 2009-02-25 2013-04-02 Moretto S.P.A. Method and apparatus for dehumidifying granular material
CN115608122A (en) * 2022-11-22 2023-01-17 杭州嘉隆气体设备有限公司 Compressed air decarburization drying device and control method

Also Published As

Publication number Publication date
NL7513726A (en) 1976-05-31
DE2552803A1 (en) 1976-07-15
DK533375A (en) 1976-05-28
JPS5177582A (en) 1976-07-05
IT1054660B (en) 1981-11-30
FR2292514A1 (en) 1976-06-25
SE415960B (en) 1980-11-17
FR2292514B1 (en) 1979-06-22
SE7513256L (en) 1976-05-28
NO753987L (en) 1976-05-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee