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Materials 2012, 5(5), 872-881; doi:10.3390/ma5050872

Alkylation of Benzene with Propylene in a Flow-Through Membrane Reactor and Fixed-Bed Reactor: Preliminary Results

1,* , 1
1 Área de Química Aplicada, Universidad Autónoma Metropolitana, Azcapotzalco. Av. San Pablo 180, Col. Reynosa Tamaulipas, Azcapotzalco D.F. 02200, Mexico 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
* Author to whom correspondence should be addressed.
Received: 4 March 2012 / Revised: 14 April 2012 / Accepted: 24 April 2012 / Published: 18 May 2012
(This article belongs to the Special Issue Zeolite Membranes: Novel Synthesis and Innovative Applications)
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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 β-zeolite; zeolite membrane; alkylation; acid catalysis
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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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.

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