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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2550
Title: Modeling of ternary solubilities of solids in supercritical carbon dioxide in the presence of cosolvents or cosolutes
Authors: Reddy, Sivamohan N.
Madras G.
Published in: Journal of Supercritical Fluids
Abstract: The investigation of ternary solubilities of solids is essential for the efficient design of extraction processes. The ternary solubilities of solids for cosolvent and cosolute systems are complex functions of temperature, pressure and cosolvent/cosolute composition. The intermolecular interactions between the molecules have a significant role in the solubilities of mixed solids in SCCO 2 and cosolvent ternary systems. Two model equations were developed for ternary SCCO 2 + cosolvent/cosolute systems by using association and activity coefficient models. Both the model equations consist of five adjustable parameters and correlate the ternary solubilities of solids in terms of temperature, pressure, density and cosolvent/cosolute composition. The model equation for cosolvent systems correlated 43 solid pollutants-cosolvent- SCCO 2, while the model equation for cosolute systems correlated 19 solute-cosolute-SCCO 2 systems available in literature. The average AARD of the model equations are 4.73% and 4.87% for cosolvent ternary systems and mixed solids in SCCO 2, respectively. © 2011 Elsevier B.V. All rights reserved.
Citation: Journal of Supercritical Fluids (2012), 63(): 105-114
URI: https://doi.org/10.1016/j.supflu.2011.11.016
http://repository.iitr.ac.in/handle/123456789/2550
Issue Date: 2012
Keywords: Activity coefficient model
Association model
Intermolecular interactions
Ternary solubilities
ISSN: 8968446
Author Scopus IDs: 56923787200
7005905149
Author Affiliations: Reddy, S.N., Department of Chemical Engineering, Indian Institute of Science, Bangalore 560012, India
Madras, G., Department of Chemical Engineering, Indian Institute of Science, Bangalore 560012, India
Funding Details: The authors thank the council for scientific and industrial research (CSIR), India for financial support.
Corresponding Author: Madras, G.; Department of Chemical Engineering, Indian Institute of Science, Bangalore 560012, India; email: giridhar@chemeng.iisc.ernet.in
Appears in Collections:Journal Publications [CH]

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