| Issue |
Korean Journal of Chemical Engineering,
Vol.23, No.5, 827-831, 2006
Vol.23, No.5, 827-831, 2006
Prediction of CO2 freezing points for the mixtures of CO2-CH4 at cryogenic conditions of NGL extraction plants
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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