naa a22 4500 510821332 CHVBK 20180411083533.0 cr unu---uuuuu 180411e20130201xx s 000 0 eng 10.1007/s11814-012-0156-3 doi (NATIONALLICENCE)springer-10.1007/s11814-012-0156-3 Structural modeling of petroleum fractions based on mixture viscosity and Watson K factor [Elektronische Daten] [Abbas Mohammadi, Mohammadreza Omidkhah, Ramin Karimzadeh, Ali Haghtalab] Two procedures have been developed for structural modeling of petroleum fractions based on mixture viscosity and Watson K factor. The representative molecules of paraffinic, naphthenic and aromatic hydrocarbons, based upon Ruzicka's structural model, have been determined for lube-oil cut SAE 10 from Tehran oil refinery. Unlike previous methods, the newly developed procedures do not require time-consuming and costly laboratory data such as true boiling point profile. Good agreement between predictions of the new models and experimental results has been observed. Moreover, the proposed methods take less run-time than previous models due to less experimental and computational complexities. The results indicate that Ruzicka's procedure, based on vapor pressure, is only applicable for light hydrocarbon mixtures, while the new methods can be applied for structural modeling of a wide range of petroleum fractions. Furthermore, as a result of this study, the application of a vapor pressure constraint leads to a higher degree of accuracy than the earlier suggested constraint, partial pressure, by Ruzicka. Korean Institute of Chemical Engineers, Seoul, Korea, 2012 Characterization nationallicence Petroleum nationallicence Representative Molecule nationallicence Structural Modeling nationallicence Viscosity nationallicence Mohammadi Abbas Department of Chemical Engineering, Tarbiat Modares University, 14155-4838, Tehran, Iran aut Omidkhah Mohammadreza Department of Chemical Engineering, Tarbiat Modares University, 14155-4838, Tehran, Iran aut Karimzadeh Ramin Department of Chemical Engineering, Tarbiat Modares University, 14155-4838, Tehran, Iran aut Haghtalab Ali Department of Chemical Engineering, Tarbiat Modares University, 14155-4838, Tehran, Iran aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/2(2013-02-01), 465-473 0256-1115 30:2<465 2013 30 11814 https://doi.org/10.1007/s11814-012-0156-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-012-0156-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mohammadi Abbas Department of Chemical Engineering, Tarbiat Modares University, 14155-4838, Tehran, Iran aut NATIONALLICENCE 700 1- Omidkhah Mohammadreza Department of Chemical Engineering, Tarbiat Modares University, 14155-4838, Tehran, Iran aut NATIONALLICENCE 700 1- Karimzadeh Ramin Department of Chemical Engineering, Tarbiat Modares University, 14155-4838, Tehran, Iran aut NATIONALLICENCE 700 1- Haghtalab Ali Department of Chemical Engineering, Tarbiat Modares University, 14155-4838, Tehran, Iran aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/2(2013-02-01), 465-473 0256-1115 30:2<465 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer