Gas separations using inorganic membranes
The RandD program consists of developing, fabricating, and testing inorganic membrane separation systems for the recovery of H/sub 2/ and the separation of coal gasification gases. Major parts of the program include (1) assessment of the status of RandD activity related to gas separations using inorganic membranes; (2) identification and selection of candidate membrane materials, based on the chemistry of the separation environment and the availability and cost of the materials; (3) fabrication and characterization of candidate membranes using specialized techniques available at the Oak Ridge Gaseous Diffusion Plant; and (4) evaluation of the separations capability of the fabricated membranes in terms of permeabilities and fluxes of gases. This quarter, literature searches of several data bases were completed to compile information on the status of RandD on inorganic membranes for gas separations. A commercially available tubular alumina membrane was evaluated in terms of mean pore size, pore size distribution, and gas permeabilities of nitrogen, helium, and carbon dioxide. Several tubular alumina membranes were fabricated and characterized by pore size distribution measurements. The design of a test apparatus for measuring the gas permeabilities of membranes at high temperatures and pressures was completed. 2 figs., 3 tabs.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6384003
- Report Number(s):
- CONF-890666-1; ON: DE89013010
- Country of Publication:
- United States
- Language:
- English
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ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
COAL GASIFICATION
ELEMENTS
FABRICATION
FLUIDS
GASES
GASIFICATION
HYDROGEN
MEMBRANES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PERMEABILITY
POROSITY
SEPARATION PROCESSES
SYNTHESIS GAS
THERMOCHEMICAL PROCESSES