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A Study on the Vapor-Liquid Equilibria for the Binary Sustem of Carbon Dioxide and Ethane  

Kim, Dong-Sun (Dept. of Chemical Engineering, Kongju National University)
Cho, Jung-Ho (Dept. of Chemical Engineering, Kongju National University)
Publication Information
Journal of the Korean Institute of Gas / v.14, no.5, 2010 , pp. 32-37 More about this Journal
Abstract
In this study, vapor-liquid equilibrium (VLE) data at several isothermal temperatures for carbon dioxide and ethane binary systems were estimated using binary interaction parameters (BIP's) in Peng-Robinson (PR) equation of state built-in PRO/II with PROVISION (PRO/II) process simulator. Moreover, BIP's in PR equation of state were newly determined by regressing the experimental VLE data for carbon dioxide and ethane systems for each different isothermal temperatures using the summation of squares of the bubble point deviations as an objective function. Comparative works have been performed for absolute average deviation % (AAD(%)) between experimental and predicted bubble pressures using built-in BIP's in PRO/II and newly regressed one, respectively. Our calculation results gave a better estimation result than the simulation result using an existing parameter built-in PRO/II.
Keywords
vapor-liquid equilibria; Peng-Robinson equation of state; simulator; binary interaction parameter;
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Times Cited By KSCI : 2  (Citation Analysis)
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