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'Supercritical Water' Density Effects on the Rate of Isopropanol Dehydration

Published

Author(s)

V I. Anikeev, Jeffrey A. Manion, A Ermakova

Abstract

A new experimental procedure for studying the kinetics and thermodynamics of chemical reactions in supercritical fluids-solvents was suggested. The kinetics and mechanism of the dehydration of 2-propanol in supercritical water in a closed reactor were studied. It was found that, first, the dehydration mechanism significantly differed from that observed in the presence of a homogeneous acid catalyst and, secondly, the rate of the reaction substantially depended on the density of supercritical water. A general mechanism of the dehydration of 2-propanol in supercritical water was suggested based on experimental studies of the hydration and hydrogenation reactions of some desired reaction products. The experimental data were well described by first-order kinetic equations. The kinetics of the reaction was studied and its rate constants determined. The density of supercritical water can be used as a parameter for controlling the kinetics and selectivity of the reaction.
Citation
Russian Journal of Physical Chemistry
Volume
75
Issue
No. 8

Keywords

2-propanol, 2-propanol dehydration, isopropanol dehydration, supercritical fluids, supercritical water

Citation

Anikeev, V. , Manion, J. and Ermakova, A. (2001), 'Supercritical Water' Density Effects on the Rate of Isopropanol Dehydration, Russian Journal of Physical Chemistry (Accessed February 25, 2024)
Created December 31, 2000, Updated October 12, 2021