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

Nwogu, Ngozi; Gobina, Edward

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.

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

• Journal Article Type: Article
• Acceptance Date: Jun 30, 2015
• Online Publication Date: Jun 3, 2015
• Publication Date: Jun 30, 2015
• Deposit Date: Apr 20, 2016
• Publicly Available Date: Apr 20, 2016
• 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
• Keywords: Gas permeation; Silica membrane; Separation factor; Membrane layer thickness
• Public URL: http://hdl.handle.net/10059/1447
• Publisher URL: http://scholar.waset.org/1999.2/10001725