Synthesis of a Zeolite-Containing Catalyst for Gas-Phase Alkylation of Benzene with Ethylene

A multistage synthesis of the catalyst for the gas-phase alkylation of benzene with ethylene is implemented. A highly active catalyst is synthesized from zeolite ZSM-5 using thermal-vapor treatment. The obtained catalyst possesses an optimal acidity, which makes it possible to achieve a higher yield...

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Bibliographic Details
Published in:Petroleum chemistry 2020-10, Vol.60 (10), p.1164-1169
Main Authors: Shavaleev, D. A., Pavlov, M. L., Basimova, R. A., Naranov, E. R.
Format: Article
Language:English
Subjects:
Alkylation
Benzene
Catalysts
Chemical synthesis
Chemistry
Chemistry and Materials Science
Ethylbenzene
Ethylene
Heat treatment
Hydrocarbons
Industrial Chemistry/Chemical Engineering
Selectivity
Xylene
Zeolites
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Summary:A multistage synthesis of the catalyst for the gas-phase alkylation of benzene with ethylene is implemented. A highly active catalyst is synthesized from zeolite ZSM-5 using thermal-vapor treatment. The obtained catalyst possesses an optimal acidity, which makes it possible to achieve a higher yield of ethylbenzene compared to the commercial catalyst based on ZSM-5 (88 and 62.7 wt %, respectively), an approximately equal ethylbenzene selectivity, and an almost three times lower concentration of the undesirable xylene impurity in an alkylate (0.004 and 0.011 wt %, respectively) in the gas-phase benzene alkylation with ethylene.
ISSN:0965-5441
1555-6239
DOI:10.1134/S0965544120100114