Open AccessPhase Behavior at High Pressure of the Ternary System: CO 2
Author(s) -
Helen Mazzer,
José Celso Oliveira dos Santos,
Vladimir Ferreira Cabral,
Cláudio Dariva,
Marcos H. Kunita,
Adley F. Rubira,
Martı́n Aznar,
Lúcio CardozoFilho
Publication year - 2011
Publication title -
journal of thermodynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.112
H-Index - 11
eISSN - 1687-9252
pISSN - 1687-9244
DOI - 10.1155/2012/921693
Subject(s) - hexafluorophosphate , ternary operation , carbon dioxide , phase transition , thermodynamics , equation of state , phase (matter) , ionic liquid , chemistry , analytical chemistry (journal) , physics , chromatography , organic chemistry , computer science , programming language , catalysis
High pressure phase behavior experimental data have been measured for the systems carbon dioxide (CO2) + 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim] [PF6]) and carbon dioxide (CO2) + 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim] [PF6]) + 1-amino-2-phenoxy-4-hydroxyanthraquinone (C.I. Disperse Red 60). Measurements were performed in the pressure up to 18 MPa and at the temperature (323 to 353 K). As reported in the literature, at higher concentrations of carbon dioxide the phase transition pressure increased very steeply. The experimental data for the binary and ternary systems were correlated with good agreement using the Peng-Robinson equation of state. The amount of water in phase behavior of the systems was evaluated
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