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Measurement of Bubble Points of Dimethyl Carbonate and Carbon Dioxide Mixtures  

Ahn, Joon-Yong (Department of Chemical Engineering and Nano-Bio Technology, Hannam University)
Lee, Byung-Chul (Department of Chemical Engineering and Nano-Bio Technology, Hannam University)
Publication Information
Applied Chemistry for Engineering / v.20, no.1, 2009 , pp. 94-98 More about this Journal
Abstract
The bubble point pressures of dimethyl carbonate and carbon dioxide mixtures were measured by using a high-pressure experimental apparatus equipped with a variable-volume view cell, at various $CO_2$ compositions in the range of temperatures above the critical temperature of $CO_2$ and below the critical temperature of dimethyl carbonate. The experimental bubble point pressure data were correlated with the Peng-Robinson equation of state (PR-EOS) to estimate the corresponding dew point compositions at equilibrium with the bubble point compositions. The experimentally measured bubble point pressures gave good agreement with those calculated by the PR-EOS. The variable-volume view cell equipment was verified to be an easy and quick way to measure the bubble point pressures of high-pressure compressible fluid mixtures.
Keywords
bubble point pressure; carbon dioxide; dimethyl carbonate; variable-volume view cell; Peng-Robinson equation of state;
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