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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/12777

Title: Solubility of solids in supercritical fluids using equations of state — excess Gibbs free energy models
Other Titles: Process Technology Proceedings
Authors: Verotti Filho, C.
Costa, Glória Meyberg Nunes
Keywords: equation of state;supercritical fluids;mixing rules
Issue Date: 1996
Publisher: Process Technology Proceedings
Abstract: Solubilities of several organic solids in four supercritical fluids are calculated with Soave and Peng-Robinson equations of state, incorporating excess Gibbs free energy into the mixing rules, with Heidemann-Kokal, Wong-Sandler and MHV2 procedures. Three excess Gibbs free energy models are used in the mixing rules: NRTL, UNiQUAC and UNIFAC. Furthermore, a comparison between these mixing rules and conventional two-binary-parameter form and modification of the excluded volume parameter in the MHV2 procedure is also presented. The best result were obtained with NRTL model and the Wong-Sandler mixing rule.
Description: p. 351–355
URI: http://www.repositorio.ufba.br/ri/handle/ri/12777
ISSN: 0921-8610
Appears in Collections:Artigos Publicados em Periódicos (Quimica)

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