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"Vapor-liquid" equilibrium measurements and modeling for the cyclohexane+cyclohexanol binary system

Abstract : To simulate cyclohexane oxidation reactors using a dynamic model linking kinetics, thermodynamics and hydrodynamics, the acquisition and modeling of vapor-liquid equilibria of the key components, under the process conditions, are essential. In this work, the vapor-liquid equilibria of the cyclohexane. +. cyclohexanol system were determined at temperatures 424, 444, 464 and 484. K. The measurements were carried out using an apparatus based on the " static-analytic" method, with two ROLSI™ pneumatic capillary samplers. The generated data are successfully correlated using two equations of state, the Peng-Robinson (PR) and the Perturbed-Chain Statistical Association Fluid Theory (PC-SAFT). A comparison of model performances reveals the former being better in data representation, while the latter has a broader applicability over larger range of temperatures.
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Submitted on : Wednesday, November 6, 2013 - 11:25:08 AM
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Christophe Coquelet, Chien-Bin Soo, Alain Valtz, Dominique Richon, Daniel Amoros, et al.. "Vapor-liquid" equilibrium measurements and modeling for the cyclohexane+cyclohexanol binary system. Fluid Phase Equilibria, Elsevier, 2010, 298 (1), pp.33-37. ⟨10.1016/j.fluid.2010.06.013⟩. ⟨hal-00880482⟩



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