Ab-initio validation of a cubic equation of state with classical mixing rule for oxygen-hydrogen mixture system focusing on its intermolecular interaction between the different kinds

2019 ◽  
Vol 2019 (0) ◽  
pp. J05412
Author(s):  
Ryuji TAKAHASHI ◽  
Nobuyuki TSUBOI ◽  
Takashi TOKUMASU ◽  
Satoshi WATANABE ◽  
Shin-ichi TSUDA
Keyword(s):  
Equation Of State ◽  
Ab Initio ◽  
Intermolecular Interaction ◽  
Mixing Rule ◽  
Cubic Equation Of State ◽  
Hydrogen Mixture ◽  
Cubic Equation ◽  
Mixture System

J054043 A Validation of the Accuracy of Cubic Equation of State for Hydrogen/Oxygen Mixture System

2011 ◽  
Vol 2011 (0) ◽  
pp. _J054043-1-_J054043-4
Author(s):  
Masato TOMI ◽  
Shinichi TSUDA ◽  
Nobuyuki TSUBOI ◽  
Takashi TOKUMASU ◽  
Mitsuo KOSHI
Keyword(s):  
Equation Of State ◽  
Oxygen Mixture ◽  
Cubic Equation Of State ◽  
Cubic Equation ◽  
Mixture System

A cubic equation of state with a new alpha function and a new mixing rule

1991 ◽  
Vol 69 ◽  
pp. 33-50 ◽  
Author(s):  
Chorng H. Twu ◽  
David Bluck ◽  
John R. Cunningham ◽  
John E. Coon
Keyword(s):  
Equation Of State ◽  
Mixing Rule ◽  
Cubic Equation Of State ◽  
Cubic Equation ◽  
Alpha Function

Modeling of vapor-liquid equilibrium for binary polypropylene glycol/solvent solutions using cubic equation of state models: optimization and comparison of CEoS models

2014 ◽  
Vol 34 (1) ◽  
pp. 95-104
Author(s):  
Ebrahim Ahmadloo ◽  
Najmeh Sobhanifar ◽  
Fatemeh Sadat Hosseini
Keyword(s):  
Equation Of State ◽  
Fluid Mixing ◽  
Polypropylene Glycol ◽  
Mixing Rule ◽  
Liquid Equilibrium ◽  
Bubble Point ◽  
Cubic Equation Of State ◽  
Bubble Point Pressure ◽  
Cubic Equation ◽  
Point Pressure

Abstract The cubic equation of state (CEoS) is a powerful method for calculation of the vapor-liquid equilibrium (VLE) in polymer solutions. Using CEoS for both the vapor and liquid phases allows one to calculate the non-ideality of polymer solutions based on a single EoS approach. In this research, VLE calculations of polypropylene glycol (polypropylene oxide) [PPG(PPO)]/solvent solutions were carried out. In this approach, eight models containing Peng-Robinson-Stryjek-Vera (PRSV) and Soave-Redlich-Kwong (SRK) CEoS separately combined with four mixing rules, namely van der Waals one-fluid mixing rule with one adjustable parameter (vdW1), van der Waals one-fluid mixing rule with two adjustable parameters (vdW2), Wong-Sandler (WS), and Zhong-Masuoka (ZM) were applied to calculations of bubble point pressure. For a better correlation, the adjustable binary interaction parameters existing in any mixing rule were optimized. The results were very acceptable and satisfactory. The results of absolute average deviations (%AAD) between computed results and experimental bubble point pressure data were calculated and presented. Although the capability of two CEoS had a good agreement with experimental data and illustrated the correct type of phase behavior in all cases, the performance of the PRSV+vdW2 was more reliable than the other models.

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