scholarly journals Equation of state for a chemically dissociative, polyatomic system: Carbon dioxide

2019 ◽  
Vol 151 (22) ◽  
pp. 224505 ◽  
Author(s):  
Christine J. Wu ◽  
David A. Young ◽  
Philip A. Sterne ◽  
Philip C. Myint
Keyword(s):  
Carbon Dioxide ◽  
Equation Of State ◽  
Polyatomic System

Solid-Fluid Phase Equilibria Measurement for Mixtures of Methane, Carbon-Dioxide and N-Hexadecane

2021 ◽  
Author(s):  
Oluwakemi Victoria Eniolorunda ◽  
Antonin Chapoy ◽  
Rod Burgass
Keyword(s):  
Experimental Data ◽  
Carbon Dioxide ◽  
Equation Of State ◽  
Phase Equilibria ◽  
Activity Coefficients ◽  
Fluid Phase ◽  
Ternary Mixtures ◽  
Binary Interaction ◽  
Thermodynamic Models ◽  
Methane Carbon

Abstract In this study, new experimental data using a reliable approach are reported for solid-fluid phase equilibrium of ternary mixtures of Methane-Carbon-dioxide- n-Hexadecane for 30-73 mol% CO2 and pressures up to 24 MPa. The effect of varying CO2 composition on the overall phase transition of the systems were investigated. Three thermodynamic models were used to predict the liquid phase fugacity, this includes the Peng Robison equation of state (PR-EoS), Soave Redlich-Kwong equation of state (SRK-EoS) and the Cubic plus Association (CPA) equation of state with the classical mixing rule and a group contribution approach for calculating binary interaction parameters in all cases. To describe the wax (solid) phase, three activity coefficient models based on the solid solution theory were investigated: the predictive universal quasichemical activity coefficients (UNIQUAC), Universal quasi-chemical Functional Group activity coefficients (UNIFAC) and the predictive Wilson approach. The solid-fluid equilibria experimental data gathered in this experimental work including those from saturated and under-saturated conditions were used to check the reliability of the various phase equilibria thermodynamic models.

Calculation of Density for Mixtures of Carbon Dioxide with Nitrogen and Methane from the ISM Equation of State

2005 ◽  
Vol 52 (2) ◽  
pp. 227-229 ◽  
Author(s):  
Behzad Haghighi ◽  
Mohammad Mehdi Papari ◽  
Maryam Niafari ◽  
Hamid Ghasemi
Keyword(s):  
Carbon Dioxide ◽  
Equation Of State

Equation of state and anharmonicity of carbon dioxide phase I up to 12 GPa and 800 K

2010 ◽  
Vol 133 (14) ◽  
pp. 144501 ◽  
Author(s):  
Valentina M. Giordano ◽  
Frédéric Datchi ◽  
Federico A. Gorelli ◽  
Roberto Bini
Keyword(s):  
Carbon Dioxide ◽  
Equation Of State ◽  
Phase I

Crossover multiparameter equation of state: General procedure and demonstration with carbon dioxide

2019 ◽  
Vol 494 ◽  
pp. 161-171 ◽  
Author(s):  
Fufang Yang ◽  
Qiang Liu ◽  
Yuanyuan Duan ◽  
Zhen Yang
Keyword(s):  
Carbon Dioxide ◽  
Equation Of State ◽  
General Procedure
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