Abstract
Highly efficient binder-free catalysts, based on zeolite Y, for the liquid-phase alkylation of benzene with ethylene have been synthesized. The catalysts have been modified by treating with aqueous solutions of hydrochloric and citric acids to remove extra-framework aluminum formed during the partial dealumination of zeolite Y. The synthesized catalysts have been tested in the alkylation of benzene with ethylene at a temperature of 200°C, a pressure of 2.5 MPa, a benzene : ethylene molar ratio of 5 : 1, and a benzene feed space velocity of 5 h−1. Over the modified catalyst, the ethylbenzene (EB) content in the alkylate increases by 27% and the EB selectivity increases by 5% compared to the initial Y zeolite.
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ACKNOWLEDGMENTS
Electron microscopy studies were performed using the equipment of the Shared-Use Center at the “Crystallography and Photonics” Federal Research Center of the Russian Academy of Sciences.
Funding
This work was done as part of State Plan for the Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences. The electron microscopy was performed using the equipment of the Shared Research Center “Structural diagnostics of materials” and supported in part by the Ministry of Science and Higher Education within the State assignment FSRC «Crystallography and Photonics» of the Russian Academy of Sciences.
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A.L. Maksimov is the editor-in-chief of the Neftekhimiya (Petroleum Chemistry) journal. The other authors declare that they have no conflicts of interest requiring disclosure in this article.
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Translated by S. Zatonsky
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Shavaleev, D.A., Pavlov, M.L., Basimova, R.A. et al. Synthesis of Modified Catalyst for Liquid Phase Alkylation of Benzene with Ethylene. Pet. Chem. 60, 1073–1079 (2020). https://doi.org/10.1134/S0965544120090182
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DOI: https://doi.org/10.1134/S0965544120090182