Alkylation of Benzene with Propylene in a Flow-Through Membrane Reactor and Fixed-Bed Reactor: Preliminary Results |
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| Authors: | Miguel Torres-Rodríguez Mirella Gutiérrez-Arzaluz Violeta Mugica-álvarez Julia Aguilar-Pliego Sibele Pergher |
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| Affiliation: | 1.Área de Química Aplicada, Universidad Autónoma Metropolitana, Azcapotzalco. Av. San Pablo 180, Col. Reynosa Tamaulipas, Azcapotzalco D.F. 02200, Mexico; E-Mails: (M.G.-A.); (V.M.-A.); (J.A.-P.);2.Laboratório de Peneiras Moleculares, PPGQ, Instituto de Química, Universidade Federal do Rio Grande do Norte, Av. Senador Salgado Filho, 3000, Natal RN, CEP 59078-970, Brasil; E-Mail: |
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| Abstract: | Benzene alkylation with propylene was studied in the gas phase using a catalytic membrane reactor and a fixed-bed reactor in the temperature range of 200–300 °C and with a weight hourly space velocity (WHSV) of 51 h−1. β-zeolite was prepared by hydrothermal synthesis using silica, aluminum metal and TEAOH as precursors. The membrane’s XRD patterns showed good crystallinity for the β-zeolite film, while scanning electron microscopy SEM results indicated that its random polycrystalline film was approximately 1 μm thick. The powders’ specific area was determined to be 400 m2·g−1 by N2 adsorption/desorption, and the TPD results indicated an overall acidity of 3.4 mmol NH3·g−1. Relative to the powdered catalyst, the catalytic membrane showed good activity and product selectivity for cumene. |
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| Keywords: | β -zeolite, zeolite membrane, alkylation, acid catalysis |
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