Simple three parameter equations for correlating liquid phase compositions in subcritical and supercritical systems

Narayan, Ram C and Madras, Giridhar (2014) Simple three parameter equations for correlating liquid phase compositions in subcritical and supercritical systems. In: JOURNAL OF SUPERCRITICAL FLUIDS, 95 . pp. 100-105.

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Abstract

Two Chrastil type expressions have been developed to model the solubility of supercritical fluids/gases in liquids. The three parameter expressions proposed correlates the solubility as a function of temperature, pressure and density. The equation can also be used to check the self-consistency of the experimental data of liquid phase compositions for supercritical fluid-liquid equilibria. Fifty three different binary systems (carbon-dioxide + liquid) with around 2700 data points encompassing a wide range of compounds like esters, alcohols, carboxylic acids and ionic liquids were successfully modeled for a wide range of temperatures and pressures. Besides the test for self-consistency, based on the data at one temperature, the model can be used to predict the solubility of supercritical fluids in liquids at different temperatures. (C) 2014 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Publication:	JOURNAL OF SUPERCRITICAL FLUIDS
Publisher:	ELSEVIER SCIENCE BV
Additional Information:	Copyright for this article belongs to the ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Keywords:	Supercritical solubility; Henry's law; Binary system; Mendez-Teja model
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	14 Feb 2015 13:36
Last Modified:	14 Feb 2015 13:36
URI:	http://eprints.iisc.ac.in/id/eprint/50827

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