CA2367839A1 - Hydrogen-permeable metal membrane and method for producing the same - Google Patents

Hydrogen-permeable metal membrane and method for producing the same Download PDF

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Publication number
CA2367839A1
CA2367839A1 CA 2367839 CA2367839A CA2367839A1 CA 2367839 A1 CA2367839 A1 CA 2367839A1 CA 2367839 CA2367839 CA 2367839 CA 2367839 A CA2367839 A CA 2367839A CA 2367839 A1 CA2367839 A1 CA 2367839A1
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CA
Canada
Prior art keywords
membrane
hydrogen
producing
same
permeable metal
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Granted
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CA 2367839
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French (fr)
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CA2367839C (en
Inventor
David J. Edlund
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Idatech LLC
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Individual
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Publication of CA2367839A1 publication Critical patent/CA2367839A1/en
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Publication of CA2367839C publication Critical patent/CA2367839C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/10—Testing of membranes or membrane apparatus; Detecting or repairing leaks
    • B01D65/106—Repairing membrane apparatus or modules
    • 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
    • B01D53/22—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 diffusion
    • B01D53/228—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 diffusion characterised by specific membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/10—Single element gases other than halogens
    • B01D2257/108—Hydrogen

Abstract

A hydrogen-permeable metal membrane (30) with increased hydrogen flux compared to conventional metal membranes is formed by at least one etching step in which a controlled volume of etchant is used to selectively remove material from surfaces (32, 34) of membrane (30). Without sacrificing membrane selectivity, membrane (30) enables a greater throughput of purified hydrogen.
Holes (60) or other defects in membrane (30) can be repaired by the addition of a sealing metal.
CA002367839A 1999-03-22 2000-03-20 Hydrogen-permeable metal membrane and method for producing the same Expired - Fee Related CA2367839C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/274,154 US6152995A (en) 1999-03-22 1999-03-22 Hydrogen-permeable metal membrane and method for producing the same
US09/274,154 1999-03-22
PCT/US2000/007458 WO2000056425A1 (en) 1999-03-22 2000-03-20 Hydrogen-permeable metal membrane and method for producing the same

Publications (2)

Publication Number Publication Date
CA2367839A1 true CA2367839A1 (en) 2000-09-28
CA2367839C CA2367839C (en) 2002-11-12

Family

ID=23047008

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002367839A Expired - Fee Related CA2367839C (en) 1999-03-22 2000-03-20 Hydrogen-permeable metal membrane and method for producing the same

Country Status (10)

Country Link
US (2) US6152995A (en)
EP (1) EP1189678B1 (en)
JP (1) JP3537768B2 (en)
AT (1) ATE366136T1 (en)
AU (1) AU754812B2 (en)
BR (1) BR0009185A (en)
CA (1) CA2367839C (en)
DE (1) DE60035418T2 (en)
MX (1) MXPA01009435A (en)
WO (1) WO2000056425A1 (en)

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US6152995A (en) 2000-11-28
DE60035418D1 (en) 2007-08-16
EP1189678A4 (en) 2005-05-04
EP1189678B1 (en) 2007-07-04
CA2367839C (en) 2002-11-12
JP3537768B2 (en) 2004-06-14
BR0009185A (en) 2001-12-26
EP1189678A1 (en) 2002-03-27
MXPA01009435A (en) 2002-08-06
US6419728B1 (en) 2002-07-16
DE60035418T2 (en) 2008-03-13
AU754812B2 (en) 2002-11-28
JP2002539917A (en) 2002-11-26
WO2000056425A1 (en) 2000-09-28
ATE366136T1 (en) 2007-07-15
AU3905600A (en) 2000-10-09

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