Alkylation of Benzene with 1-Alkenes over Zeolite Y and Mordenite
Department of Petroleum Technology and Petrochemistry, Institute of Organic Chemistry, Catalysis and Petrochemistry
a Department of NMR and MS, Institute of Analytical Chemistry Faculty of Chemical and Food Technology, STU, Radlinského 9, 812 37 Bratislava, Slovak Republic
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Abstract: Influence of reaction temperature, molar ratio of benzene to 1-alkenes, weight of catalyst and length of hydrocarbon chain of 1-alkenes were tested in alkylation of benzene by 1-alkenes. The liquid-phase alkylation was carried out in autoclave at autogeneous pressure. Synthetic zeolites of Y-type and mordenite in H-forms were tested as solid catalysts. Zeolites were characterized by XRD, N2 adsorption, FTIR with pyridine adsorption and NH3-TPD. The influence of the reaction conditions (temperature, molar ratio benzene to 1-alkenes and weight of catalyst) on the conversion and selectivity to 2-phenyl isomer was studied with different 1-alkenes from C6 to C18. The activity of Y-zeolite was greater then that of mordenite but the selectivity to 2-phenyl isomer was much better in the case of mordenite catalyst.
Keywords: Alkylation, aromatics, 1-alkenes, zeolites
Full paper in Portable Document Format: acs_0034.pdf
Acta Chimica Slovaca, Vol. 2, No. 1, 2009, pp. 31—45