Metal Membrane Patents

Author(s): A.I. Zouboulis*, S.G. Psaltou.

Journal Name: Recent Patents on Engineering

Volume 13 , Issue 1 , 2019

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Graphical Abstract:


Abstract:

Background: Metal membranes present an alternative approach to conventional membrane materials (polymeric, ceramic), applied mainly for gas separation applications. The major mechanism for the gas permeation though them is called “solution-diffusion” and differs from the respective through the common polymeric membrane materials, hence presenting higher selectivity.

Objective: The aim of this article is to provide a general overview of the respective major patents, dealing with metal membranes, especially with those recently published, as well as the alternative ways for manufacturing them, the materials that can be used and the relevant applications. The main focus is given in the composite metal membranes aspects (sulfur resistant etc.), prepared from metal alloys, although there is also a section describing the metal-organic framework membranes. For this purpose, we revised all patents relating to metal membranes, as well metal organic frameworks.

Conclusion: The most patents include inventions about composite metal membranes and methods for manufacture them. Metal membranes are fabricated mainly from alloys containing palladium. Gold is used only to make sulfur resistant membranes. For multilayer membranes the deposition can be occurred via surface activation but usually no chemical activation applied. The most common application for metal membranes is hydrogen separation. On the other hand Metal Organic Frameworks (MOFs) are used as CO2 separators.

Keywords: Metal membranes, gas (hydrogen, CO2) separation, Metal-Organic Frameworks (MOF), composite membranes, sulfur resistant, solution-diffusion.

[1]
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[2]
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[3]
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[4]
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[6]
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[7]
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[8]
E. Adatoz, A.K. Avci, and S. Keskin, "Opportunities and challenges of MOF-based membranes in gas separations", Separ. Purif. Tech., vol. 152, pp. 207-237, 2015.
[9]
S.R. Venna, and M.A. Carreon, "Metal organic framework membranes for carbon dioxide separation", Chem. Eng. Sci., vol. 124, pp. 3-19, 2015.
[10]
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[11]
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[12]
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[13]
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[14]
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[15]
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[16]
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[17]
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[18]
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[19]
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[20]
R.C. Dye, and R.C. Snow, Thermally tolerant multilayer metal membrane. U.S. Patent 6,214,090 B1, 2001.
[21]
D.J. Edlund, and W.A. Pledger, Method of forming hydrogen-selective metal membrane modules. EP Patent 1,272,259 B1, 2003.
[22]
J.C. Saukaitis, Supported gas separation membrane and method, . U.S. Patent 2015/0068451 A1, 2015.
[23]
A.A. Del Paggio, and J.C. Saukaitis, Gas separation membrane system and a method of preparing or reconditioning and the use thereof, . U.S. Patent 8,167,976 B2, 2012.
[24]
N.E. Perkins, and J.C. Saukaitis, Method for preparing a palladium-gold alloy gas separation membrane system, . U.S. Patent 8,721,773 B2, 2014.
[25]
D.J. Way, M. Lusk, and P. Thoen, Method of making sulfur-resistant composite metal membranes, . U.S. Patent 8,101,243 B2, 2012.
[26]
J. Saukaitis, Method of preparing a palladium-silver alloy gas separation membrane system, . U.S. Patent 8,876,949 B2, 2014.
[27]
R.R. Willis, Metal organic framework polymer mixed matrix membranes, . WO Patent 2011/081779 A2, 2011.
[28]
U.K. Kharul, R. Banerjee, and D. Nagaraju, Process for the preparation of mofs porous polymeric membrane composites, . U.S. Patent 9,713,796 B2, 2017.
[29]
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Article Details

VOLUME: 13
ISSUE: 1
Year: 2019
Page: [55 - 68]
Pages: 14
DOI: 10.2174/1872212112666180312160741
Price: $58

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