Synthesis of Modified Catalyst for Liquid Phase Alkylation of Benzene with Ethylene

• Published in: Petroleum chemistry Vol. 60; no. 9; pp. 1073 - 1079
• Main Authors: Shavaleev, D. A., Pavlov, M. L., Basimova, R. A., Sadovnikov, A. A., Sudin, V. V., Smirnova, E. M., Demikhova, N. R., Grigor’ev, Yu. V., Maksimov, A. L., Naranov, E. R.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.09.2020; Springer; Springer Nature B.V
• Subjects: Alkylation; Aluminum; Aqueous solutions; Benzene; Catalysts; Chemical synthesis; Chemistry; Chemistry and Materials Science; Ethylbenzene; Ethylene; Hydrocarbons; Industrial Chemistry/Chemical Engineering; Liquid phases; Selectivity; Zeolites; binder-free zeolite Y; alkylation; ethylene; ethylbenzene; catalyst synthesis; benzene
• ISSN: 0965-5441; 1555-6239
• DOI: 10.1134/S0965544120090182

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.