Experimental (vapour + liquid) equilibrium data and modelling for binary mixtures of decafluorobutane with propane and 1-butene
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- 作者：Shalendra Clinton Subramoney ; Paramespri Naidoo ; Alain Valtz ; Christophe Coquelet ; Dominique Richon ; Deresh Ramjugernath
- 关键词：Phase equilibria ; (Vapour ; + ; liquid) equilibria ; VLE ; &ldquo ; Static analytic&rdquo ; method ; Decafluorobutane ; 1-Butene ; Propane ; Modelling
- 刊名：Journal of Chemical Thermodynamics
- 出版年：2013
- 出版时间：December, 2013
- 年：2013
- 卷：67
- 期：Complete
- 页码：134-142
- 全文大小：968 K
文摘
(Vapour + liquid) equilibrium (P-x-y) data are reported at three isotherms for the (propane + decafluorobutane), and (1-butene + decafluorobutane) binary systems. The range of temperatures extended from 312.92 K to 342.94 K. An apparatus based on the ¡°static-analytic¡± method, which had two electromagnetic ROLSITM samplers, for repeatable and reliable equilibrium phase sampling and handling, was used to undertake the measurements. The experimental values were correlated with the ¡°PR-MC-NRTL-WS¡± model which comprised the Mathias-Copeman alpha function, Wong-Sandler mixing rule, and NRTL local composition model which were incorporated into the Peng-Robinson equation of state. Maximum pressure azeotropy is observed for both systems at all investigated temperatures. Liquid-liquid immiscibility was not observed over the range of temperatures studied.