High Pressure Phase Behavior of Carbon Dioxide in Carbon Disulfide and Carbon Tetrachloride

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• 作者：Pedro J. Carvalho ; Ana Rute Ferreira ; Mariana B. Oliveira ; Marcel Besnard ; M. Isabel Cabac抬o ; Joa虄o A. P. Coutinho
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2011
• 出版时间：June 9, 2011
• 年：2011
• 卷：56
• 期：6
• 页码：2786-2792
• 全文大小：792K
• 年卷期：v.56,no.6(June 9, 2011)
• ISSN：1520-5134

文摘

The knowledge about the nature of the interactions between carbon dioxide (CO<sub>2sub>) and different organic molecules is of relevance for designing, operating, and optimizing many industrial processes. In fact, numerous studies concerning the interactions of CO<sub>2sub> with other compounds have been presented, using both experimental and theoretical approaches. As part of a continuing effort to fully understand the interactions between CO<sub>2sub> and different compounds, the high pressure phase equilibria of CO<sub>2sub> binary systems containing carbon disulfide (CS<sub>2sub>) and carbon tetrachloride (CCl<sub>4sub>) were here investigated, involving experimental measurements of high pressure phase equilibria and modeling with the cubic plus association (CPA) equation of state (EoS). The CCl<sub>4sub> and CS<sub>2sub> were chosen due to their similar structure to CH<sub>4sub> and CO<sub>2sub>, respectively, allowing to anticipate the interactions between like and unlike molecules that can be found at binary and multicomponent systems constituted by CO<sub>2sub> and/or CH<sub>4sub>. It was found that CO<sub>2sub> + CS<sub>2sub> presents strong positive deviations to ideality while the CO<sub>2sub> + CCl<sub>4sub> system presents an almost ideal behavior.