New volume translation functions for biodiesel density prediction with the Peng-Robinson Equation of state in terms of its raw materials

Fuel ◽  
2021 ◽  
Vol 293 ◽  
pp. 120254
Author(s):  
Gutierri Salgueiro ◽  
Marcellus de Moraes ◽  
Fernando Pessoa ◽  
Raquel Cavalcante ◽  
André Young
Keyword(s):  
Equation Of State ◽  
Raw Materials ◽  
Density Prediction ◽  
Volume Translation ◽  
Robinson Equation

scholarly journals Revisiting Kelvin equation and Peng–Robinson equation of state for accurate modeling of hydrocarbon phase behavior in nano capillaries

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ilyas Al-Kindi ◽  
Tayfun Babadagli
Keyword(s):  
Experimental Data ◽  
Surface Tension ◽  
Equation Of State ◽  
Phase Behavior ◽  
Pore Radius ◽  
Microfluidic Chips ◽  
Tight Sandstone ◽  
Kelvin Equation ◽  
Rock Samples ◽  
Robinson Equation

AbstractThe thermodynamics of fluids in confined (capillary) media is different from the bulk conditions due to the effects of the surface tension, wettability, and pore radius as described by the classical Kelvin equation. This study provides experimental data showing the deviation of propane vapour pressures in capillary media from the bulk conditions. Comparisons were also made with the vapour pressures calculated by the Peng–Robinson equation-of-state (PR-EOS). While the propane vapour pressures measured using synthetic capillary medium models (Hele–Shaw cells and microfluidic chips) were comparable with those measured at bulk conditions, the measured vapour pressures in the rock samples (sandstone, limestone, tight sandstone, and shale) were 15% (on average) less than those modelled by PR-EOS.

Modification of the Peng–Robinson equation of state for helium in low temperature regions

2015 ◽  
Vol 54 (4) ◽  
pp. 542-551 ◽  
Author(s):  
Shayan Kaviani ◽  
Farzaneh Feyzi ◽  
Bahareh Khosravi
Keyword(s):  
Equation Of State ◽  
Low Temperature ◽  
Robinson Equation

Compositional Simulation Using an Advanced Peng-Robinson Equation of State

2011 ◽  
Author(s):  
Yizheng Wei ◽  
Zhangxin John Chen ◽  
Marco Satyro ◽  
Chao Charlie Dong ◽  
Hui Deng
Keyword(s):  
Equation Of State ◽  
Compositional Simulation ◽  
Robinson Equation
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