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

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

Authors

Ngozi C. Nwogu

Mohammed N. Kajama

Ifeyinwa Orakwe

Edward Gobina

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.

Journal Article Type Article
Publication Date Aug 31, 2015
Journal Energy and power engineering
Print ISSN 1949-243X
Electronic ISSN 1947-3818
Publisher New Publisher Required
Peer Reviewed Peer Reviewed
Volume 7
Issue 9
Pages 418-425
Institution 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
DOI https://doi.org/10.4236/epe.2015.79040
Keywords Gas separation; Silica membrane; Separation factor; Membrane layer thickness

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