Gas separations using inorganic membranes

Egan, B.Z.; Singh, Surinder P.; Fain, D.E.; Roettger, G.E.; White, Desiree

doi:10.2172/10150064

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…High selectivities for one of the components were obtained, but lack of a suitable sealant betwen the fibers prevented assembly of these fibers into modules. Porous alumina membrane robes that are being developed by Oak Ridge National Laboratory have exhibited high permeability and moderate selectivity [Egan et al, 1990]. Ceramem Corporation is developing asymmetric porous silica/alumina membranes and membrane modules made of cordierite for gas separation [Goldsmith et al, 1992].…”

Section: Gas Separation By Inorganic Membranesmentioning

confidence: 99%

Thermal and chemical degradation of inorganic membrane materials. Topical report

Krishnan¹,

Sanjurjo²,

Wood³

et al. 1994

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This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their evnployees, makes any warr,'mty, express or intplied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclose, or represents that its use would not infringe privately owned rights. Rel_rence herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily comtitute or imply its endorsement_ recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily stme or reflect those of the United States Government or any agency thereof. This report has been reproduced directly from the best available copy. Available to DOE and DOE contractors from the Office of Scientific and Technical Information, 175 Oak Ridge Turnpike, Oak Ridge, TN 37831; prices available at (615) 576-8401.

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Section: Gas Separation By Inorganic Membranesmentioning

confidence: 99%

Thermal and chemical degradation of inorganic membrane materials. Topical report

Krishnan¹,

Sanjurjo²,

Wood³

et al. 1994

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“…A test apparatus for measuring the gas permeabilities of membranes at high temperatures (up to 500°C) and pressures (up to 4 MPa) was designed and constructed (5). A flow diagram of the apparatus is shown in Figure 3.…”

Section: Fig 2 Pore Size Distribution Of a Fabricated Alumina Membramentioning

confidence: 99%

Separating Hydrogen From Coal Gasification Gases With Alumina Membranes

Egan

Fain

Roettger

et al. 1991

Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations

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Synthesis gas produced in coal gasification processes contains hydrogen, along with carbon monoxide, carbon dioxide, hydrogen sulfide, water, nitrogen, and other gases, depending on the particular gasification process. Development of membrane technology to separate the hydrogen from the raw gas at the high operating temperatures and pressures near exit gas conditions would improve the efficiency of the process. Tubular porous alumina membranes with mean pore radii ranging from about 9 to 22 A have been fabricated and characterized. Based on the results of hydrostatic tests, the burst strength of the membranes ranged from 800 to 1600 psig, with a mean value of about 1300 psig. These membranes were evaluated for separating hydrogen and other gases. Tests of membrane permeabilities were made with helium, nitrogen, and carbon dioxide. Measurements were made at room temperature in the pressure range of 15 to 589 psi. In general, the relative gas permeabilities correlated qualitatively with a Knudsen flow mechanism; however, other gas transport mechanisms such as surface adsorption may also be involved. Efforts are under way to fabricate membranes having still smaller pores. At smaller pore sizes, higher separation factors are expected from molecular sieving effects.

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Gas separations using inorganic membranes

Cited by 2 publications

References 7 publications

Thermal and chemical degradation of inorganic membrane materials. Topical report

Thermal and chemical degradation of inorganic membrane materials. Topical report

Separating Hydrogen From Coal Gasification Gases With Alumina Membranes

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