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Synthesis and characterization of MCM-48 tubular membranes |
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| Authors: | O. de la Iglesia, M. Pedernera, R. Mallada, Z. Lin, J. Rocha, J. Coronas,J. Santamarí a, |
| Affiliation: | aDepartamento de Ingeniería Química y Tecnologías del Medio Ambiente, Universidad de Zaragoza, Spain bPlanta Piloto de Ingeniería Química, UNS-CONICET, Bahía Blanca, Argentina cDepartment of Chemistry, University of Aveiro, CICECO, 3810-193 Aveiro, Portugal |
| Abstract: | MCM-48 membranes have been prepared on alumina supports of different pore sizes. A battery of characterization techniques has been used to study the physical properties and the quality of the membranes prepared. The highest quality membranes were prepared on supports with pore size of up to 60 nm. The MCM-48 membranes were tested in the separation of gas phase mixtures and a cyclohexane/O2 selectivity higher than 270 was obtained. The selective separation of organic compounds from inert components is a result of the cooperative effects of capillary condensation in MCM-48 pores and of the specific interactions of the permeating compounds and the membrane material. |
| Keywords: | Mesoporous membranes MCM-48 zeolite membranes organic/permanent gas separation |
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