https://repositorio.ufba.br/handle/ri/12777
Tipo: | Artigo de Periódico |
Título: | Solubility of solids in supercritical fluids using equations of state — excess Gibbs free energy models |
Título(s) alternativo(s): | Process Technology Proceedings |
Autor(es): | Verotti Filho, C. Costa, Glória Meyberg Nunes |
Autor(es): | Verotti Filho, C. Costa, Glória Meyberg Nunes |
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. |
Palavras-chave: | equation of state supercritical fluids mixing rules |
Editora / Evento / Instituição: | Process Technology Proceedings |
URI: | http://www.repositorio.ufba.br/ri/handle/ri/12777 |
Data do documento: | 1996 |
Aparece nas coleções: | Artigo Publicado em Periódico (Química) |
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2222222222222222.pdf | 220,61 kB | Adobe PDF | Visualizar/Abrir |
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