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Alkylation of Benzene with Propylene in a Flow-Through Membrane Reactor and Fixed-Bed Reactor: Preliminary Results
Área de Química Aplicada, Universidad Autónoma Metropolitana, Azcapotzalco. Av. San Pablo 180, Col. Reynosa Tamaulipas, Azcapotzalco D.F. 02200, Mexico
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
* Author to whom correspondence should be addressed.
Received: 4 March 2012; in revised form: 14 April 2012 / Accepted: 24 April 2012 / Published: 18 May 2012
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.
Keywords: β-zeolite; zeolite membrane; alkylation; acid catalysis
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Torres-Rodríguez, M.; Gutiérrez-Arzaluz, M.; Mugica-Álvarez, V.; Aguilar-Pliego, J.; Pergher, S. Alkylation of Benzene with Propylene in a Flow-Through Membrane Reactor and Fixed-Bed Reactor: Preliminary Results. Materials 2012, 5, 872-881.
Torres-Rodríguez M, Gutiérrez-Arzaluz M, Mugica-Álvarez V, Aguilar-Pliego J, Pergher S. Alkylation of Benzene with Propylene in a Flow-Through Membrane Reactor and Fixed-Bed Reactor: Preliminary Results. Materials. 2012; 5(5):872-881.
Torres-Rodríguez, Miguel; Gutiérrez-Arzaluz, Mirella; Mugica-Álvarez, Violeta; Aguilar-Pliego, Julia; Pergher, Sibele. 2012. "Alkylation of Benzene with Propylene in a Flow-Through Membrane Reactor and Fixed-Bed Reactor: Preliminary Results." Materials 5, no. 5: 872-881.