CO2 + Methanol + Glycerol: Determination of the Compositions in VLLLE From a Synthetic Method-Based Experiment/Theoretical Procedure

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Abstract

The experimental synthetic-based method is a straightforward procedure to obtain a complete resolution of the phase behaviour of VLE of binary mixtures; however, it has limited applicability for multicomponent mixtures/multiphase phenomena. The analytical method is an alternative that offers a reasonable solution for complex configurations, however, the investment of time and resources is high. A straightforward alternative presented in this work consists on the application of the synthetic method allied to a theoretical procedure in order to obtain the composition of the existent phases in equilibrium in complex system’s configurations. The case study is a CO2 + methanol + glycerol mixture that at concrete conditions of global composition, pressure and temperature leads to VLLLE. The composition of each phase in equilibrium was determined using the Peng-Robinson EOS with Mathias-Klotz-Prausnitz mixing rule allied to a combination algorithm to find and check the suitable arrangement of derived compositions that respect the thermodynamic criteria of equilibria, balance of masses and order of densities. A single solution was obtained and discussed along the manuscript.
Original languageEnglish
Title of host publicationProceedings of the 12th International Symposium on Supercritical Fluids, ISSF 2018
PublisherInternational Society for Advancement of Supercritical Fluids (ISASF)
ISBN (Print)978-2-9564117-1-0
Publication statusPublished - 2018
Event12th International Symposium on Supercritical Fluids, ISSF 2018 - Antibes Juan-les-Pins, France
Duration: 22 Apr 201825 Apr 2018

Conference

Conference12th International Symposium on Supercritical Fluids, ISSF 2018
CountryFrance
CityAntibes Juan-les-Pins
Period22/04/1825/04/18

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    Carrera, G. V. D. S. M., & Nunes da Ponte, M. L. M. (2018). CO2 + Methanol + Glycerol: Determination of the Compositions in VLLLE From a Synthetic Method-Based Experiment/Theoretical Procedure. In Proceedings of the 12th International Symposium on Supercritical Fluids, ISSF 2018 [OT02] International Society for Advancement of Supercritical Fluids (ISASF).