Excess molar enthalpies for binary carbon dioxide+diethyl carbonate system at 298.15–308.15K and 5.0–6.5MPa

The excess molar enthalpies of the carbon dioxide+diethyl carbonate system were determined using a flow-type isothermal microcalorimeter at temperatures from 298DDT15 to 308DDT15K and pressures from 5DDT0 to 6DDT5MPa. Mixtures shows strong exothermic behavior in these regions. In addition, a strong...

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Published inFluid phase equilibria Vol. 236; no. 1-2; pp. 146 - 155
Main Authors Matsuda, Hiroyuki, Yoshii, Shigetaka, Nagashima, Akinori, Kurihara, Kiyofumi, Ochi, Kenji
Format Journal Article
LanguageEnglish
Published 20.09.2005
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Summary:The excess molar enthalpies of the carbon dioxide+diethyl carbonate system were determined using a flow-type isothermal microcalorimeter at temperatures from 298DDT15 to 308DDT15K and pressures from 5DDT0 to 6DDT5MPa. Mixtures shows strong exothermic behavior in these regions. In addition, a strong pressure dependency of the excess molar enthalpies was observed, and the excess molar enthalpy values decreased with increasing pressure. The experimental results were correlated using a composition-dependent equation and the Peng-Robinson equation of state with the conventional mixing rule. Finally, the prediction of excess molar enthalpies using three mixing rules (MHV1, MHV2, and Wong-Sandler) was also tested on the basis of the vapor-liquid equilibrium data.
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content type line 23
ISSN:0378-3812
DOI:10.1016/j.fluid.2005.05.029