Empirical Models to Characterize the Structural and Physiochemical Properties of Vacuum Gas Oils with Different Saturate Contents
Dicho S. Stratiev,
Ivelina K. Shishkova,
Rosen K. Dinkov,
Ivan P. Petrov,
Iliyan V. Kolev,
Dobromir Yordanov,
Sotir Sotirov,
Evdokia Sotirova,
Vassia Atanassova,
Simeon Ribagin,
Krassimir Atanassov,
Danail D. Stratiev,
Svetoslav Nenov,
Liliana Todorova-Yankova,
Kamen Zlatanov
Affiliations
Dicho S. Stratiev
LUKOIL Neftohim Burgas, 8104 Burgas, Bulgaria
Ivelina K. Shishkova
LUKOIL Neftohim Burgas, 8104 Burgas, Bulgaria
Rosen K. Dinkov
LUKOIL Neftohim Burgas, 8104 Burgas, Bulgaria
Ivan P. Petrov
LUKOIL Neftohim Burgas, 8104 Burgas, Bulgaria
Iliyan V. Kolev
LUKOIL Neftohim Burgas, 8104 Burgas, Bulgaria
Dobromir Yordanov
Laboratory of Intelligent Systems, Department of Industrial Technologies and Management, University Prof. Dr. Assen Zlatarov, Professor Yakimov 1, 8010 Burgas, Bulgaria
Sotir Sotirov
Laboratory of Intelligent Systems, Department of Industrial Technologies and Management, University Prof. Dr. Assen Zlatarov, Professor Yakimov 1, 8010 Burgas, Bulgaria
Evdokia Sotirova
Laboratory of Intelligent Systems, Department of Industrial Technologies and Management, University Prof. Dr. Assen Zlatarov, Professor Yakimov 1, 8010 Burgas, Bulgaria
Vassia Atanassova
Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Academic Georgi Bonchev 105, 1113 Sofia, Bulgaria
Simeon Ribagin
Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Academic Georgi Bonchev 105, 1113 Sofia, Bulgaria
Krassimir Atanassov
Laboratory of Intelligent Systems, Department of Industrial Technologies and Management, University Prof. Dr. Assen Zlatarov, Professor Yakimov 1, 8010 Burgas, Bulgaria
Danail D. Stratiev
Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Academic Georgi Bonchev 105, 1113 Sofia, Bulgaria
Svetoslav Nenov
Department of Mathematics, University of Chemical Technology and Metallurgy, Kliment Ohridski 8, 1756 Sofia, Bulgaria
Liliana Todorova-Yankova
Laboratory of Intelligent Systems, Department of Industrial Technologies and Management, University Prof. Dr. Assen Zlatarov, Professor Yakimov 1, 8010 Burgas, Bulgaria
Kamen Zlatanov
Department of Mathematics, University of Chemical Technology and Metallurgy, Kliment Ohridski 8, 1756 Sofia, Bulgaria
Inter-criteria analysis was employed in VGO samples having a saturate content between 0.8 and 93.1 wt.% to define the statistically significant relations between physicochemical properties, empirical structural models and vacuum gas oil compositional information. The use of a logistic function and employment of a non-linear least squares method along with the aromatic ring index allowed for our newly developed correlation to accurately predict the saturate content of VGOs. The empirical models developed in this study can be used not only for obtaining the valuable structural information necessary to predict the behavior of VGOs in the conversion processes but can also be utilized to detect incorrectly performed SARA analyses. This work confirms the possibility of predicting the contents of VGO compounds from physicochemical properties and empirical models.
