Synthesis at several length scales of zeolite A membranes using a continuous flow method |
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Authors: | Oscar Arbeláez Aída Luz Villa |
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Affiliation: | Department of Chemical Engineering, Environmental Catalysis Research Group, School of Engineering, Universidad de Antioquia, Medellín, Antioquia, Colombia |
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Abstract: | Zeolite A membranes were synthesized in the inner side of porous TiO2 and α-Al2O3 tubular supports by a continuous method. The methodology was then used at several scales for preparing membranes on TiO2 and α-Al2O3 supports with lengths of 6, 12 and 25 cm. Formation of an homogeneous zeolite film was confirmed by XRD and SEM in all supports. Single-gas permeation experiments (He, H2, N2 and n-C3H8) indicated that Knudsen diffusion was the predominant mechanism in both supports. All the synthesized membranes present high flux and moderate selectivity to water in water–ethanol mixtures. |
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Keywords: | Alumina support continuous method gas permeation synthesis at several length scales titania support zeolite A membrane |
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