Gas separation processes in a diffusion module based on anodic aluminum oxide membrane elements
https://doi.org/10.29235/1561-8323-2021-65-6-749-754
Abstract
Anodic alumina membranes with an ordered microstructure have been synthesized and investigated. It was found that Knudsen diffusion is the predominant mechanism for gas penetration through the obtained membranes. The technology made it possible to obtain porous membranes with specified structural characteristics for the separation of gas mixtures. Designs of a diffusion element and a gas separation module based on membranes made of anodic aluminum oxide have been developed, and the features of mass transfer under various operating conditions have been studied. The membrane module without recirculation made it possible to concentrate the heavy component from the model helium-methane mixture (99 % / 1 %) up to 18 %. The membrane module with recirculation made it possible to concentrate a light component from a model helium-methane mixture (1 % / 99 %) up to 40 %.
About the Authors
O. L. Voitik
A. V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus
Belarus
Belarus
Voitik Olga L. – Senior researcher
15, P. Brovka Str., 220072, Minsk, Republic of Belarus
K. I. Delendik
A. V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus
Belarus
Belarus
Delendik Kirill I. – Senior researcher
15, P. Brovka Str., 220072, Minsk, Republic of Belarus
N. V. Kolyago
A. V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus
Belarus
Belarus
Kolyago Natalia V. – Leading researcher
15, P. Brovka Str., 220072, Minsk, Republic of Belarus
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