title: Study on vapor-liquid equilibria and surface tensions for nonpolar fluids by renormalization group theory and density gradient theory.
abstract: 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.
authors.affiliation: School of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003 People's Republic of China. fudong@tsinghua.org.cn
authors.forename: Dong
authors.initials: D
authors.lastname: Fu
mesh_terms: 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
chemical_list: D002073:Butanes; D010420:Pentanes; C033353:pentane; C046888:butane; D004980:Ethane; D008697:Methane; D011407:Propane