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Thermophysics and Aeromechanics

2011 year, number 2

Gas filtration and separation with nano-size ceramics

V.I. Lysenko, D.YU. Trufanov, S.P. Bardakhanov
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Keywords: nano-size ceramics, filtration, gas separation
Pages: 273-280


Filtration and separation properties were studied for filters made from open-porosity ceramics (sintered from authors-developed silicon dioxide nanopowder tarkosil". Key parameters were measured for samples of ceramics produced at different sintering temperatures: porosity, gas permeability coefficient, relative time of standard volume fill-up, gas mixture separation coefficient. The possibility of using the described ceramics for helium enrichment was demonstrated with examples of helium-nitrogen and helium-methane mixtures.