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Oligomerization of 1-octene on micro-mesoporous zeolite catalysts

Grigor’eva, N. G. / Bubennov, S. V. / Mayak, A. A. / Kutepov, B. I.

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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Oligomerization of 1-octene on micro-mesoporous zeolite catalysts

Grigor’eva, N. G. / Bubennov, S. V. / Mayak, A. A. / Kutepov, B. I.

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).

Oligomerization of 1-octene on micro-mesoporous zeolite catalysts

Grigor’eva, N. G. / Bubennov, S. V. / Mayak, A. A. / Kutepov, B. I.

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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Titel:

Oligomerization of 1-octene on micro-mesoporous zeolite catalysts

Beteiligte:

Grigor’eva, N. G. (Autor:in) / Bubennov, S. V. (Autor:in) / Mayak, A. A. (Autor:in) / Kutepov, B. I. (Autor:in)

Erschienen in:

Petroleum Chemistry ; 53 ; 407-411

Erscheinungsdatum:

01.11.2013

Format / Umfang:

5 pages

ISSN:

1555-6239 , 0965-5441

DOI:

https://doi.org/10.1134/S0965544113060078

Medientyp:

Aufsatz (Zeitschrift)

Format:

Elektronische Ressource

Sprache:

Englisch

Schlagwörter:

oligomerization , octene-1 , octene oligomers , zeolites Chemistry , Industrial Chemistry/Chemical Engineering

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