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Alkylation of benzene with propylene in a flow-through membrane reactor and fixed-bed reactor: preliminary results
(MDPI, 2012-05-18) Torres-Rodríguez, Miguel; Gutiérrez-Arzaluz, Mirella; Mugica-Álvarez, Violeta; Aguilar-Pliego, Julia; Pergher, Sibele Berenice Castellã
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.