Benzene Alkylation with Propylene in the Presence of Nanocrystalline Zeolites BEA with Different Compositions

Autor:	D. O. Bachurina, Elena E. Knyazeva, E. P. Andriako, T. O. Bok, Irina I. Ivanova
Rok vydání:	2019
Předmět:	010405 organic chemistry Chemistry General Chemical Engineering Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element General Chemistry Alkylation 010402 general chemistry 01 natural sciences Nanocrystalline material 0104 chemical sciences Catalysis chemistry.chemical_compound Fuel Technology Nanocrystal Geochemistry and Petrology Aluminium Selectivity Benzene Chemical composition
Zdroj:	Petroleum Chemistry. 59:1320-1325
ISSN:	1555-6239 0965-5441
DOI:	10.1134/s0965544119120028
Popis:	The effect of the chemical composition of nanocrystalline zeolites BEA on their physicochemical and catalytic properties in benzene alkylation with propylene is studied. It is shown that a decrease in the Al2O3 content in the reaction mixture during the synthesis of nanocrystalline zeolites leads to a decrease in the size of both the primary nanocrystals and their aggregates. The acidic properties of nanocrystalline zeolites BEA correlate with the aluminum concentration in the samples. The high concentration of acid sites of about 1400 μmol/g and the developed surface of zeolites BEA represented by nanocrystal aggregates provide a high activity of the samples and a high selectivity for the target product—cumene—owing to a decrease in the contribution of side reactions, namely, the secondary alkylation and oligomerization of propylene.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::13023616d00badbe0a9f741be228a13a https://doi.org/10.1134/s0965544119120028 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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