Microstructural Optimization of Thin Supported Inorganic Membranes for Gas and Water Purification

Mottern, Matthew L.; Shi, Jingyu; Shqau, Krenar; Yu, Di; Verweij, H.

doi:10.1002/9780470276280.ch34

Cited by 5 publications

(2 citation statements)

References 38 publications

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“…Inorganic membranes have a number of advantages over polymeric membranes, for example their ability to withstand harsher conditions such as high temperatures and corrosive gases [43]. However, the focus in the literature is on hydrogen separation, with helium permeation being one of the gases used in characterization rather than as a specific application.…”

Section: Inorganic Membranesmentioning

confidence: 99%

Review of Membranes for Helium Separation and Purification

Scholes

Ghosh

2017

Membranes

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Membrane gas separation has potential for the recovery and purification of helium, because the majority of membranes have selectivity for helium. This review reports on the current state of the research and patent literature for membranes undertaking helium separation. This includes direct recovery from natural gas, as an ancillary stage in natural gas processing, as well as niche applications where helium recycling has potential. A review of the available polymeric and inorganic membranes for helium separation is provided. Commercial gas separation membranes in comparable gas industries are discussed in terms of their potential in helium separation. Also presented are the various membrane process designs patented for the recovery and purification of helium from various sources, as these demonstrate that it is viable to separate helium through currently available polymeric membranes. This review places a particular focus on those processes where membranes are combined in series with another separation technology, commonly pressure swing adsorption. These combined processes have the most potential for membranes to produce a high purity helium product. The review demonstrates that membrane gas separation is technically feasible for helium recovery and purification, though membranes are currently only applied in niche applications focused on reusing helium rather than separation from natural sources.

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Section: Inorganic Membranesmentioning

confidence: 99%

Review of Membranes for Helium Separation and Purification

Scholes

Ghosh

2017

Membranes

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“…The supported γ-alumina membranes, shown in Fig. 2, were prepared by deposition of a boehmite sol on homogeneous AKP30 α-Al 2 O 3 support [21]. Quasi-homogeneous γ-Alumina membranes show a pattern of green and magenta interference colors.…”

Section: Nanoparticle Dispersion Synthesismentioning

confidence: 99%

Nanostructured Ceramic Thin Films and Membranes by Wet Chemical Processing Methods

Shi

Mottern

Shqau

et al. 2006

Advances in Science and Technology

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Nanostructured ceramic thin films and membranes are used for protective or functional purposes and prepared on dense or porous substrate materials. Wet chemical methods enable cheap, low-temperature, mass-scale manufacturing routes. They produce fine-grained porous and dense micro-structures that cannot be realized otherwise. In wet-chemical processing, clean nanoparticle dispersions are deposited on the substrate at, primarily, ambient conditions. The deposition is followed by a (rapid) thermal processing treatment to remove liquids and organic additives, to convert precursors to the target composition, and to establish the final porous and dense micro-structure. In the synthesis of precursor dispersions it is very important to obtain nanoparticles with a near-isometric shape and a fairly narrow particle size distribution, without the formation of secondary (agglomerate) structures. In particular the latter requires careful control of solution and interfacial chemistry to achieve proper colloidal stability, during and after the synthesis process. Characterization of coating integrity, defect morphology and defect population is done by decoration methods, microscopy, ellipsometry and statistical methods that employ membrane transport properties.

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Fundamentals of Membrane Transport Phenomena

2017

Science and Technology of Separation Membranes

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Microstructural Optimization of Thin Supported Inorganic Membranes for Gas and Water Purification

Cited by 5 publications

References 38 publications

Review of Membranes for Helium Separation and Purification

Review of Membranes for Helium Separation and Purification

Nanostructured Ceramic Thin Films and Membranes by Wet Chemical Processing Methods

Fundamentals of Membrane Transport Phenomena

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