WO2015179884A3 - A cyclical system for the regeneration of desiccant - Google Patents

A cyclical system for the regeneration of desiccant Download PDF

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Publication number
WO2015179884A3
WO2015179884A3 PCT/ZA2015/000036 ZA2015000036W WO2015179884A3 WO 2015179884 A3 WO2015179884 A3 WO 2015179884A3 ZA 2015000036 W ZA2015000036 W ZA 2015000036W WO 2015179884 A3 WO2015179884 A3 WO 2015179884A3
Authority
WO
WIPO (PCT)
Prior art keywords
desiccant
regeneration
vessel
cyclical system
cyclical
Prior art date
Application number
PCT/ZA2015/000036
Other languages
French (fr)
Other versions
WO2015179884A2 (en
Inventor
Kobus Johannes VAN DER WAT
Robert John VAN ZYL
Original Assignee
Tegnon (Pty) 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 Tegnon (Pty) Ltd filed Critical Tegnon (Pty) Ltd
Publication of WO2015179884A2 publication Critical patent/WO2015179884A2/en
Publication of WO2015179884A3 publication Critical patent/WO2015179884A3/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
    • B01D53/047—Pressure swing adsorption
    • B01D53/0476—Vacuum pressure swing adsorption
    • 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
    • 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
    • B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40043—Purging
    • B01D2259/4005—Nature of purge gas
    • B01D2259/40056—Gases other than recycled product or process gas

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)
  • Drying Of Gases (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

A method of regenerating a desiccant located m an enclosed vessel, wherein the vessel Is depressurized to atmospheric pressure, and atmospheric air, drawn into, the vessel at & reduced pressure, is allowed to expand to reduce its relative humidity level and is then used to absorb water from the desiccant.
PCT/ZA2015/000036 2014-05-21 2015-05-21 A cyclical system for the regeneration of desiccant WO2015179884A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2014/03752 2014-05-21
ZA201403752 2014-05-21

Publications (2)

Publication Number Publication Date
WO2015179884A2 WO2015179884A2 (en) 2015-11-26
WO2015179884A3 true WO2015179884A3 (en) 2016-01-14

Family

ID=54337938

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2015/000036 WO2015179884A2 (en) 2014-05-21 2015-05-21 A cyclical system for the regeneration of desiccant

Country Status (1)

Country Link
WO (1) WO2015179884A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11225621B2 (en) 2017-03-10 2022-01-18 Compression Leasing Services, Inc. Deep vacuum regeneration of adsorbent media
EP4338814A1 (en) * 2022-09-15 2024-03-20 Flowserve Management Company Method and device for removing reactive particles from a vacuum environment, process plant for producing monocrystalline silicon ingots

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1496925A (en) * 1965-10-18 1967-10-06 Rimer Mfg Company Ltd Process for fractionating gas mixtures and apparatus for its implementation
US4303228A (en) * 1978-03-06 1981-12-01 General Motors Corporation Apparatus for heat treating containing air-purged molecular sieves in O.sub. -free N2 atmospheres
EP0449451A1 (en) * 1990-03-29 1991-10-02 The Boc Group, Inc. Pre-purification of air for separation
US5232474A (en) * 1990-04-20 1993-08-03 The Boc Group, Inc. Pre-purification of air for separation
WO2007076867A1 (en) * 2005-12-30 2007-07-12 Aker Cool Sorption A/S Filter to filter equalization
US20100043633A1 (en) * 2006-05-05 2010-02-25 Separation Design Group, Llc Sorption method, device, and system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1496925A (en) * 1965-10-18 1967-10-06 Rimer Mfg Company Ltd Process for fractionating gas mixtures and apparatus for its implementation
US4303228A (en) * 1978-03-06 1981-12-01 General Motors Corporation Apparatus for heat treating containing air-purged molecular sieves in O.sub. -free N2 atmospheres
EP0449451A1 (en) * 1990-03-29 1991-10-02 The Boc Group, Inc. Pre-purification of air for separation
US5232474A (en) * 1990-04-20 1993-08-03 The Boc Group, Inc. Pre-purification of air for separation
WO2007076867A1 (en) * 2005-12-30 2007-07-12 Aker Cool Sorption A/S Filter to filter equalization
US20100043633A1 (en) * 2006-05-05 2010-02-25 Separation Design Group, Llc Sorption method, device, and system

Also Published As

Publication number Publication date
WO2015179884A2 (en) 2015-11-26

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