@article{scholars3611, note = {cited By 9}, title = {A perturbed-chain SAFT equation of state applied to mixtures of short- and long-chain n -alkanes}, journal = {Industrial and Engineering Chemistry Research}, number = {19}, volume = {52}, pages = {6582--6591}, year = {2013}, doi = {10.1021/ie400081a}, author = {Nasrifar, K.}, issn = {08885885}, keywords = {Binary interaction parameter; Critical properties; Equation of state; Perturbed-Chain SAFT; Perturbed-chain statistical associating fluid theories; Saturated liquid; Vapor-liquid coexistence curve; Vapor-liquid equilibrium, Binary mixtures; Equations of state; Hydrostatic pressure; Liquid methane; Liquids; Methane; Phase equilibria; Vapors, Paraffins}, abstract = {A simplified hard-chain dimer theory is employed with perturbed-chain statistical associating fluid theory (PC-SAFT) in calculating the vapor pressures and saturated liquid volumes of pure n-alkanes from methane to n-eicosane. Compared to the original PC-SAFT, the developed model is in better agreement with the experimental vapor pressures and saturated liquid volumes of n-alkanes along the vapor-liquid coexistence curve and the critical properties from n-butane toward longer n-alkanes. Predicting the vapor-liquid equilibria (VLE) of binary mixtures containing methane and a long-chain n-alkane, the new model describes the mixtures more accurately than PC-SAFT. With no binary interaction parameter, the model adequately describes the experimental VLE data, in particular, near the critical points. In the prediction of the VLE of mixtures containing ethane, propane, n-hexane, and a long-chain n-alkane, the differences between the two models become less appreciable. {\^A}{\copyright} 2013 American Chemical Society.}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84877732330&doi=10.1021\%2fie400081a&partnerID=40&md5=58626f8bbd3660af19751b4a9d5d00f8} }