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Prediction of molar volumes of CO2-expanded liquids using a new generalized method

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Title Prediction of molar volumes of CO2-expanded liquids using a new generalized method
 
Creator DALVI, SV
MUKHOPADHYAY, M
 
Subject peng-robinson equation
carbon-dioxide
binary-systems
of-state
densities
equilibria
mixtures
antisolvent
pressures
solvents
 
Description A new, easy-to-use generalized method is presented in this work for accurate computation of v(L), the molar volume of the carbon dioxide (CO2)-expanded liquids. This method calculates the liquid-phase compressibility factor, Z(L), of the binary mixture of CO2 and solvent. The uniqueness of this method is that it does not involve computation to solve a cubic equation, nor does it require any binary interaction constants and critical temperatures of the pure components, as in the case of the equation of state (EOS) method. Z(L) is obtained directly from a generalized correlation in terms of the pseudo-reduced pressure (P-r) with two system-specific constants. These two constants are simply dependent on the acentric factor of the solvent, omega(2). The computation of v(L) by this method has been validated for 17 CO2-solvent systems at temperatures in the range of 290.8-328.2 K and at pressures in the range of 4-96 bar with the experimental data available in the literature.
 
Publisher AMER CHEMICAL SOC
 
Date 2011-07-14T16:14:33Z
2011-12-26T12:49:04Z
2011-12-27T05:34:44Z
2011-07-14T16:14:33Z
2011-12-26T12:49:04Z
2011-12-27T05:34:44Z
2007
 
Type Article
 
Identifier INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 46(24), 8282-8287
0888-5885
http://dx.doi.org/10.1021/ie070814p
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4008
http://hdl.handle.net/10054/4008
 
Language en