Solubilities of palmitic and stearic fatty acids in supercritical carbon dioxide

Garlapati, Chandrasekhar and Madras, Giridhar (2010) Solubilities of palmitic and stearic fatty acids in supercritical carbon dioxide. In: The Journal of Chemical Thermodynamics, 42 (2). pp. 193-197.

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Abstract

The solubilities of two fatty acids, namely hexadecanoic acid (palmitic acid) and octadecanoic acid (stearic acid) in supercritical carbon dioxide (SCCO2), were determined at T = (328 and 338) K from 12.8 MPa to 22.6 MPa. Three models, namely a thermodynamic model based on the Peng-Robinson equation of state with Kwak and Mansoori mixing rules, a model based on dilute solution theory proposed by Mendez-Santiago and Teja and a new reformulated Chrastil equation model, were used to correlate the solubilities. In all the models, the correlation constants are temperature independent. All the models successfully correlated the experimental results for the solubilities of hexadecanoic acid within 3%.

Item Type:	Journal Article
Publication:	The Journal of Chemical Thermodynamics
Publisher:	Elsevier Science
Additional Information:	Copyright for this article belongs to Elsevier Science.
Keywords:	Supercritical carbon dioxide; Temperature independent mixing rule; Kwak and Mansoori; Reformulated Chrastil equation
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	12 Jan 2010 08:52
Last Modified:	19 Sep 2010 05:54
URI:	http://eprints.iisc.ac.in/id/eprint/25369

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