Summary
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1.
A thermodynamic calculation has been performed for the dehydrogenation of ethylbenzene under the conditions of its formation from ethylcyeldhexane at 547°. Equilibrium yields of styrene from ethylcyclohexane change by only 1.4% when the degree of aromatization of ethylcyclohexane changes by 20%.
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2.
It has been shown that the experimental yields of styrene from ethylcyclohexane coincide (within the limits of the accuracy a the analysis) with theoretical figures. Hence, the dehydrogenation of ethylbenzene formed from ethyleyclohexane attains equilibrium.
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3.
It has been established that the nondependence of the yields of the final product of the dehydrogenation of ethylcyclohexane (styrene) on changes over a wide range in the progress of the intermediate stage of this reaction (yield of ethylbenzene) results from the fact that the dehydrogenation of ethylbenzene formed from ethylcyclohexane attains an equilibrium.
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Literature Cited
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N. I. Shuikin and I. I. Levitsky, Bull. Acad. Sci. USSR, Div. Chem, Sci., No. 6, 1003 (1953).
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N. I. Shuikin and I. I. Levitsky. Bull. Acad. Sci. USSR Div. Chem.. Sci., No. 3, 403 (1953).
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Levitsky, I.I., Shuikin, N.L. High temperature catalytic dehydrooenation of ethylcyclohexane. Russ Chem Bull 2, 903–906 (1953). https://doi.org/10.1007/BF01167534
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DOI: https://doi.org/10.1007/BF01167534