Group Contribution Method for Predicting the Phase Behavior of Binary Mixtures Containing Carbon Dioxide
نویسندگان
doi
چکیده
This work deals with estimation of temperature dependent binary interaction parameters (k ij) for binary systems containing CO 2 using the Soave-Redlich-Kwong equation of state with a group contribution method. In this paper six groups, namely CH 3, CH 2, CH, CH 4 (methane), C2H 6 (ethane), and CO 2 (carbon dioxide) are defined and their relevant values of group interaction parameters are optimized. Using this method, it is possible to estimate the k ij of any mixture containing carbon dioxide and hydrocarbons at any temperature along the coexistence curve. The results obtained in this study are, in most cases, accurate.