High molecular permeance dual-layer ceramic membrane for capturing CO2 from flue gas stream.

Nwogu, Ngozi C.; Kajama, Mohammed N.; Orakwe, Ifeyinwa; Gobina, Edward

Abstract

With the objective to create technologically advanced materials to be scientifically applicable, dual-layer silica alumina membranes were molecularly fabricated by continuous surface coating silica layers containing hybrid material onto a ceramic porous substrate for flue gas separation applications. The dual-layer silica alumina membrane was prepared by dip coating technique before further drying in an oven at elevated temperature. The effects of substrate physical appearance, coating quantity, cross-linking agent, number of coatings and testing conditions on gas separation performance of the membrane have been investigated. Scanning electron microscope was used to investigate the development of coating thickness. The membrane shows impressive perm selectivity especially for CO2 and N2 binary mixture representing a stimulated flue gas stream.

Citation

NWOGU, N.C., KAJAMA, M.A., ORAKWE, I. and GOBINA, E. 2015. High molecular permeance dual-layer ceramic membrane for capturing CO2 from flue gas stream. Energy and power engineering [online], 7(9), pages 418-425. Available from: https://doi.org/10.4236/epe.2015.79040

• Journal Article Type: Article
• Acceptance Date: Aug 22, 2015
• Online Publication Date: Aug 25, 2015
• Publication Date: Aug 31, 2015
• Deposit Date: Sep 12, 2016
• Publicly Available Date: Sep 12, 2016
• Journal: Energy and power engineering
• Print ISSN: 1949-243X
• Electronic ISSN: 1947-3818
• Publisher: Scientific Research Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 7
• Issue: 9
• Pages: 418-425
• DOI: https://doi.org/10.4236/epe.2015.79040
• Keywords: Gas separation; Silica membrane; Separation factor; Membrane layer thickness
• Public URL: http://hdl.handle.net/10059/1646