Oxidative dehydrogenation of 4-vinylcyclohexene and ethylbenzene: current state and future prospects
Hafiz Mutallim Alimardanov1, Arzu Akif Jalilova1
1Y.H.Mamedaliyev's Institute of Petrochemical Processes of the Ministry of Science and Education AZ 1025, 30 Khojaly aven. Baku Azerbaijan arzujalilzadeh@gmail.com.
Abstract:
The current state of research on the oxidative dehydrogenation of ethylbenzene and 4-vinylcyclohexene to styrene in the presence of dioxygen and carbon dioxide is reviewed. The high efficiency and potential of producing styrene from 4-vinylcyclohexene (a dimerization/condensation adduct of buta-1,3-diene) using carbon dioxide over oxide and zeolite catalysts modified with selected rare-earth metal (REM) oxides are demonstrated. Experimental findings are presented and potential reaction pathways are discussed. Particular emphasis is placed on the redox and acid-base properties of the catalysts and their critical role in catalyst selection for these processes.
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