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AU2001282698A1 - Semi-permeable membrane, method for providing electric power and a device - Google Patents

Semi-permeable membrane, method for providing electric power and a device

Info

Publication number
AU2001282698A1
AU2001282698A1 AU2001282698A AU8269801A AU2001282698A1 AU 2001282698 A1 AU2001282698 A1 AU 2001282698A1 AU 2001282698 A AU2001282698 A AU 2001282698A AU 8269801 A AU8269801 A AU 8269801A AU 2001282698 A1 AU2001282698 A1 AU 2001282698A1
Authority
AU
Australia
Prior art keywords
semi
permeable membrane
electric power
providing electric
membrane
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.)
Abandoned
Application number
AU2001282698A
Inventor
Torleif Holt
Thor Thorsen
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.)
STATKRAFT SF
Original Assignee
STATKRAFT SF
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 STATKRAFT SF filed Critical STATKRAFT SF
Publication of AU2001282698A1 publication Critical patent/AU2001282698A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/002—Forward osmosis or direct osmosis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/04—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Cell Separators (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention concerns a semi-permeable membrane for pressure retarded osmosis consisting of one thin layer of a non-porous material (the diffusion skin), and one or more layers of a porous material (the porous layer), where the porous layer has a structure where porosity Æ, thickness of the membrane x(m), and tortuosity Ä, are related to one another as given by the expression: x · Ä = Æ · S wherein S is a structure parameter, having a value of 0.0015 m or lower, porosity is more than 50% and tortuosity is less than 2.5. The membrane porous layer has a water permeability of more than 1 €¢ 10 -11 m/s. Pa and a salt permeability of less than 3 €¢ 10 -8 m/s.
AU2001282698A 2000-08-04 2001-07-20 Semi-permeable membrane, method for providing electric power and a device Abandoned AU2001282698A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20003977 2000-08-04
NO20003977A NO314575B1 (en) 2000-08-04 2000-08-04 Semipermeable membrane and method for providing electric power as well as a device
PCT/NO2001/000314 WO2002013955A1 (en) 2000-08-04 2001-07-20 Semi-permeable membrane, method for providing electric power and a device

Publications (1)

Publication Number Publication Date
AU2001282698A1 true AU2001282698A1 (en) 2002-02-25

Family

ID=19911456

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001282698A Abandoned AU2001282698A1 (en) 2000-08-04 2001-07-20 Semi-permeable membrane, method for providing electric power and a device

Country Status (12)

Country Link
US (3) US7563370B2 (en)
EP (2) EP1315554B1 (en)
JP (1) JP5422809B2 (en)
AT (1) ATE487532T1 (en)
AU (1) AU2001282698A1 (en)
CA (1) CA2418329C (en)
DE (1) DE60143439D1 (en)
DK (1) DK1315554T3 (en)
ES (1) ES2355547T3 (en)
NO (1) NO314575B1 (en)
PT (1) PT1315554E (en)
WO (1) WO2002013955A1 (en)

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US8974668B2 (en) 2013-02-15 2015-03-10 Maher Isaac Kelada Hollow fiber membrane element and methods of making same
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CN103172189A (en) * 2013-04-09 2013-06-26 中国科学院化学研究所 Device for generating power by utilizing osmosis energy
WO2014204403A2 (en) * 2013-06-19 2014-12-24 National University Of Singapore Thin film composite hollow fibers for osmotic power generation
JP6169019B2 (en) * 2014-02-28 2017-07-26 株式会社東芝 Working medium for circulating osmotic pressure power generation, circulating osmotic pressure power generation system and method, and working medium phase control method
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Also Published As

Publication number Publication date
PT1315554E (en) 2011-02-07
DE60143439D1 (en) 2010-12-23
EP1315554A1 (en) 2003-06-04
ES2355547T3 (en) 2011-03-28
CA2418329A1 (en) 2002-02-21
NO20003977L (en) 2002-02-05
US7563370B2 (en) 2009-07-21
US20080210634A1 (en) 2008-09-04
CA2418329C (en) 2010-02-02
US7566402B2 (en) 2009-07-28
NO314575B1 (en) 2003-04-14
WO2002013955A1 (en) 2002-02-21
JP2004505764A (en) 2004-02-26
EP2153881A1 (en) 2010-02-17
DK1315554T3 (en) 2011-01-17
US20090250392A1 (en) 2009-10-08
NO20003977D0 (en) 2000-08-04
EP1315554B1 (en) 2010-11-10
US20080169723A1 (en) 2008-07-17
JP5422809B2 (en) 2014-02-19
ATE487532T1 (en) 2010-11-15

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