Study on vapor-liquid equilibria and surface tensions for nonpolar fluids by renormalization group theory and density gradient theory.
An equation of state (EOS) applicable for both the uniform and nonuniform fluids is established by using the density-gradient theory (DGT). In the bulk phases, the EOS reduces to statistical associating fluid theory (SAFT). By combining the EOS with the renormalization group theory (RGT), the vapor-liquid-phase equilibria and surface tensions for 10 nonpolar chainlike fluids are investigated from low temperature up to the critical point. The obtained results agree well with the experimental data.
Fu
Dong
D
School of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003 People's Republic of China. fudong@tsinghua.org.cn
D002073:Butanes / Q000737:chemistry; D002627:Chemistry, Physical / Q000379:methods*; D004980:Ethane / Q000737:chemistry; D008697:Methane / Q000737:chemistry; D008956:Models, Chemical; D015233:Models, Statistical; D008962:Models, Theoretical; D010420:Pentanes / Q000737:chemistry; D011407:Propane / Q000737:chemistry; D013499:Surface Properties; D013696:Temperature; D013816:Thermodynamics
D002073:Butanes; D010420:Pentanes; C033353:pentane; C046888:butane; D004980:Ethane; D008697:Methane; D011407:Propane