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Received February 11, 2006
Accepted April 7, 2006
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Prediction of CO2 freezing points for the mixtures of CO2-CH4 at cryogenic conditions of NGL extraction plants
Department of Chemical Engineering, Shiraz University of Technology, Modarres Blvd. 71555-313, Shiraz, Iran
Korean Journal of Chemical Engineering, September 2006, 23(5), 827-831(5), 10.1007/BF02705935
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Abstract
The carbon dioxide freezing phenomenon is investigated at the cryogenic operating conditions of the turboexpansion-based NGL plants. The Peng-Robinson equation of state is used for predicting the CO2 freezing points for liquid and vapor mixtures of CO2-CH4. A new quadratic temperature dependent kij correlation is also presented for proper description of binary interactions at low temperatures. The overall average absolute relative deviation between experimental and predicted CO2 freezing temperatures is 0.26%.
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Kordas A, Tsoutsouras K, Stamataki S, Tassios D, Fluid Phase Equilib., 93, 41 (1994)
Kurata F, “Solubility of solid carbon dioxide in pure light hydrocarbons and mixtures of light hydrocarbons,” Research Report RR-10, Gas Processors Association, Tulsa (1974)
Peng YD, Rabinson DB, Ind. Eng. Chem. Fundam., 15, 59 (1976)
Perry RH, Green DW, Perry’s chemical engineer’s handbook, 7th edition, McGraw-Hill (1997)
Rowlinson JS, Sutton JR, Proc. R. Soc. A, 229, 271 (1955)
Valderrama JO, Obaid-Ur-Rehman S, Cisternas LA, Fluid Phase Equilib., 40, 217 (1988)
White WE, Ferenczy KM, Baudat NP, Hydrocarbon Processing, 107 (1973)
ZareNezhad B, Technical Report SP45, National Iranian Gas Company, Tehran, Iran (2005)
Zhi Y, Lee H, Fluid Phase Equilib., 201(2), 287 (2002)
