Open AccessHigh Molecular Permeance Dual-Layer Ceramic Membrane for Capturing CO<sub>2</sub> from Flue Gas Stream
Author(s) -
Ngozi Claribelle Nwogu,
Mohammed Nasir Kajama,
Ifeyinwa Orakwe,
Edward Gobina
Publication year - 2015
Publication title -
energy and power engineering
Language(s) - English
Resource type - Journals
eISSN - 1949-243X
pISSN - 1947-3818
DOI - 10.4236/epe.2015.79040
Subject(s) - flue gas , permeance , materials science , coating , layer (electronics) , scanning electron microscope , membrane , substrate (aquarium) , chemical engineering , gas separation , ceramic , porosity , dual layer , selectivity , composite material , catalysis , chemistry , organic chemistry , biochemistry , engineering , oceanography , geology
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
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