High-pressure phase equilibria for the carbon dioxide 2-pentanol and carbon dioxide water 2-pentanol systems

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High pressure vapor-liquid equilibria for the binary carbon dioxide-2-pentanol system are measured at 313.2 K. The phase equilibrium apparatus used in this work is of the circulation type in which the coexisting phases are recirculated, on-line sampled, and analyzed. The critical pressure and corresponding mole fraction of carbon dioxide at 313.2 K are found to be 8.67 MPa and 0.985, respectively, for this binary system. The phase equilibria for the ternary carbon dioxide-water-2-pentanol system are also measured at 313.2 K and at pressures of 2.0, 4.0, 6.0, 8.0, and 8.64 MPa. The ternary carbon dioxide-2-pentanol-water systems show three LLV phases over the range of pressure up to 8.64 MPa. The binary experimental equilibrium data are correlated with the Redlich-Kwong, Soave-Redlich-Kwong, Peng-Robinson, and Patel-Teja equations of state with two different mixing rules, the van der Waals and the Panagiotopoulos-Reid mixing rules. The binary experimental data are well correlated by using three equations of state and corresponding mixing rules. (C) 1998 Elsevier Science B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
1998-09
Language
English
Article Type
Article; Proceedings Paper
Keywords

STATE; EQUATION; METHANOL

Citation

FLUID PHASE EQUILIBRIA, v.150, pp.695 - 701

ISSN
0378-3812
URI
http://hdl.handle.net/10203/75296
Appears in Collection
CBE-Journal Papers(저널논문)
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