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WO2009129550A3 - A process for obtaining water from saline water - Google Patents

A process for obtaining water from saline water Download PDF

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Publication number
WO2009129550A3
WO2009129550A3 PCT/ZA2009/000022 ZA2009000022W WO2009129550A3 WO 2009129550 A3 WO2009129550 A3 WO 2009129550A3 ZA 2009000022 W ZA2009000022 W ZA 2009000022W WO 2009129550 A3 WO2009129550 A3 WO 2009129550A3
Authority
WO
WIPO (PCT)
Prior art keywords
water
saline
refrigerant
work
obtaining
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.)
Ceased
Application number
PCT/ZA2009/000022
Other languages
French (fr)
Other versions
WO2009129550A2 (en
Inventor
Patrick Robert; Frank Dillon
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2009129550A2 publication Critical patent/WO2009129550A2/en
Publication of WO2009129550A3 publication Critical patent/WO2009129550A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/22—Treatment of water, waste water, or sewage by freezing
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

A process and apparatus (10) for extracting water (26) from saline water (14) (including sea water) which recycles cooled water (26) and saline-rich solution (24) from a downstream part of the process to an upstream part of the process to reduce the work required of the refrigeration installation. The work required is further reduced by using a refrigerant (21) from a source independent of the freezer refrigerant (20) to lower the condensing temperature of refrigerant (20). With the apparatus described (32), the extra work of compression is less than the work reduction required to compress refrigerant (20). It is also shown how an absorption refrigeration cycle, utilising waste heat as an energy source, can be used to further reduce the overall work required for vapour compression. The ice (22), water (26) and saline-rich solution (24) are the only coolants required in the total process (10)a process for obtaining water from saline water.
PCT/ZA2009/000022 2008-04-16 2009-03-11 A process for obtaining water from saline water Ceased WO2009129550A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200803357 2008-04-16
ZA2008/3357 2008-04-16

Publications (2)

Publication Number Publication Date
WO2009129550A2 WO2009129550A2 (en) 2009-10-22
WO2009129550A3 true WO2009129550A3 (en) 2009-12-10

Family

ID=41199794

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2009/000022 Ceased WO2009129550A2 (en) 2008-04-16 2009-03-11 A process for obtaining water from saline water

Country Status (1)

Country Link
WO (1) WO2009129550A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2433957C1 (en) * 2010-02-17 2011-11-20 Федеральное государственное образовательное учреждение высшего профессионального образования "Дальневосточный государственный технический рыбохозяйственный университет" Method to produce ice-containing suspension from sea water and plant for its realisation
US10246345B2 (en) 2015-12-30 2019-04-02 General Electric Company Water desalination system and method for fast cooling saline water using turbines

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1145568A (en) * 1966-04-15 1969-03-19 Sing Wang Cheng Separation of fresh water from an aqueous solution by the high pressure inversion of the order of melting points
US3614874A (en) * 1967-01-17 1971-10-26 Carves Simon Ltd Separator-melter unit for desalination

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1145568A (en) * 1966-04-15 1969-03-19 Sing Wang Cheng Separation of fresh water from an aqueous solution by the high pressure inversion of the order of melting points
US3614874A (en) * 1967-01-17 1971-10-26 Carves Simon Ltd Separator-melter unit for desalination

Also Published As

Publication number Publication date
WO2009129550A2 (en) 2009-10-22

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