Determination and Correlation of Excess Molar Enthalpies of CO2 + Dimethyl Carbonate System

Shigetaka Yoshii; Hiroyuki Matsuda; Akinori Nagashima; Kiyofumi Kurihara; Kenji Ochi

doi:10.11491/apcche.2004.0.989.0

Asian Pacific Confederation of Chemical Engineers congress program and abstracts

Session ID : 3P-11-013

DOI https://doi.org/10.11491/apcche.2004.0.989.0

Conference information

Host: The Society of Chemical Engineers, Japan

Determination and Correlation of Excess Molar Enthalpies of CO₂ + Dimethyl Carbonate System

Shigetaka Yoshii, Hiroyuki Matsuda, Akinori Nagashima, Kiyofumi Kurihara, Kenji Ochi

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Keywords: excess molar enthalpies, carbon dioxide + dimethyl carbonate system, isothermal micro-calorimeter

CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

The excess molar enthalpies (H^E) of the carbon dioxide + dimethyl carbonate system were measured in the vicinity of the critical point of carbon dioxide using a flow-type isothermal microcalorimeter at temperature 308.15K and pressures from 5.0 to 7.5 MPa. Mixtures showed very exothermic behavior in those region and a strong pressure dependency of H^E was also observed, and the values of H^E decreased according to the increase of pressure. The experimental results were correlated using the Mayers-Scott equation.

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