Abstract
The oligomerization of 1-octene in the presence of micro- and micro-mesoporous catalysts based on zeolite Y (SiO2/Al2O3 = 4.9) has been studied. The results of low-temperature nitrogen adsorption confirm the formation of mesopores with a diameter of 2–4 nm in the micro-mesoporous catalysts. An ammonia temperature-programmed desorption study of the acid properties of the synthesized zeolite catalysts has shown that the preparation of micro-mesoporous samples is accompanied by a decrease in the concentration and strength of acid sites. A comparison of the catalytic properties of the microporous and micro-mesoporous zeolites has revealed that the latter are the most active in 1-octene oligomerization and allow octene oligomers to be obtained with a selectivity of 65% at the 100% conversion of the monomer. The use of zeolite catalysts with the micro-mesoporous structure in the oligomerization of 1-octene affords oligomers with a broader molecular-mass distribution (degree of oligomerization n = 2–5) than on the microporous samples (n = 2 to 3).
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Original Russian Text © N.G. Grigor’eva, S.V. Bubennov, A.A. Mayak, B.I. Kutepov, 2013, published in Neftekhimiya, 2013, Vol. 53, No. 6, pp. 456–461.
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Grigor’eva, N.G., Bubennov, S.V., Mayak, A.A. et al. Oligomerization of 1-octene on micro-mesoporous zeolite catalysts. Pet. Chem. 53, 407–411 (2013). https://doi.org/10.1134/S0965544113060078
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DOI: https://doi.org/10.1134/S0965544113060078