Skip to main content

Research Repository

See what's under the surface

Gas permeation behaviour of single and mixed gas components using an asymmetric ceramic membrane.

Nwogu, Ngozi; Gobina, Edward

Authors

Ngozi Nwogu

Edward Gobina



Abstract

A dip-coating process has been used to form an asymmetric silica membrane with improved membrane performance and reproducibility. First, we deposited repeatedly silica on top of a commercial alumina membrane support to improve its structural make up. The membrane is further processed under clean room conditions to avoid dust impurity and subsequent drying in an oven for high thermal, chemical and physical stability. The resulting asymmetric membrane exhibits a gradual change in the membrane layer thickness. Compared to the support, the dual-layer process improves the gas flow rates. For the scientific applications for natural gas purification, CO2, CH4 and H2 gas flow rates were. In addition, the membrane selectively separated hydrogen.

Journal Article Type Article
Publication Date Jun 30, 2015
Journal International journal of chemical, molecular, nuclear, materials and metallurgical engineering
Print ISSN 2010-376X
Electronic ISSN 2010-3778
Publisher World Academy of Science, Engineering and Technology
Peer Reviewed Peer Reviewed
Volume 9
Issue 6
Pages 689-693
Institution Citation NWOGU, N. and GOBINA, E. 2015. Gas permeation behaviour of single and mixed gas components using an asymmetric ceramic membrane. International journal of chemical, molecular, nuclear, materials and metallurgical engineering [online], 9(6), pages 689-693. Available from: http://scholar.waset.org/1999.2/10001725
Keywords Gas permeation; Silica membrane; Separation factor; Membrane layer thickness
Publisher URL http://scholar.waset.org/1999.2/10001725

Files





Downloadable Citations