Experience in Processing Alternative Crude Oils to Replace Design Oil in the Refinery

Dicho Stratiev (), Ivelina Shiskova, Vesislava Toteva, Georgi Georgiev, Rosen Dinkov, Iliyan Kolev, Ivan Petrov, Georgi Argirov, Veselina Bureva, Simeon Ribagin, Krassimir Atanassov, Svetoslav Nenov, Sotir Sotirov, Radoslava Nikolova and Anife Veli
Additional contact information
Dicho Stratiev: LUKOIL Neftohim Burgas, 8104 Burgas, Bulgaria
Ivelina Shiskova: LUKOIL Neftohim Burgas, 8104 Burgas, Bulgaria
Vesislava Toteva: Department Chemical Technologies, University of Chemical Technology and Metallurgy, Kliment Ohridski 8, 1756 Sofia, Bulgaria
Georgi Georgiev: LUKOIL Neftohim Burgas, 8104 Burgas, Bulgaria
Rosen Dinkov: LUKOIL Neftohim Burgas, 8104 Burgas, Bulgaria
Iliyan Kolev: LUKOIL Neftohim Burgas, 8104 Burgas, Bulgaria
Ivan Petrov: LUKOIL Neftohim Burgas, 8104 Burgas, Bulgaria
Georgi Argirov: LUKOIL Neftohim Burgas, 8104 Burgas, Bulgaria
Veselina Bureva: Department of Computer Systems and Technologies, University Prof. Dr. Assen Zlatarov, Professor Yakimov 1, 8010 Burgas, Bulgaria
Simeon Ribagin: Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Georgi Bonchev 105, 1113 Sofia, Bulgaria
Krassimir Atanassov: Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Georgi Bonchev 105, 1113 Sofia, Bulgaria
Svetoslav Nenov: Department of Mathematics, University of Chemical Technology and Metallurgy, Kliment Ohridski 8, 1756 Sofia, Bulgaria
Sotir Sotirov: Laboratory of Intelligent Systems, University Prof. Dr. Assen Zlatarov, Professor Yakimov 1, 8010 Burgas, Bulgaria
Radoslava Nikolova: Central Research Laboratory, University Prof. Dr. Assen Zlatarov, Professor Yakimov 1, 8010 Burgas, Bulgaria
Anife Veli: Central Research Laboratory, University Prof. Dr. Assen Zlatarov, Professor Yakimov 1, 8010 Burgas, Bulgaria

Resources, 2024, vol. 13, issue 6, 1-30

Abstract: A comprehensive investigation of a highly complex petroleum refinery (Nelson complexity index of 10.7) during the processing of 11 crude oils and an imported atmospheric residue replacing the design Urals crude oil was performed. Various laboratory oil tests were carried out to characterize both crude oils, and their fractions. The results of oil laboratory assays along with intercriteria and regression analyses were employed to find quantitative relations between crude oil mixture quality and refining unit performance. It was found that the acidity of petroleum cannot be judged by its total acid number, and acid crudes with lower than 0.5 mg KOH/g and low sulphur content required repeated caustic treatment enhancement and provoked increased corrosion rate and sodium contamination of the hydrocracking catalyst. Increased fouling in the H-Oil hydrocracker was observed during the transfer of design Urals crude oil to other petroleum crudes. The vacuum residues with higher sulphur, lower nitrogen contents, and a lower colloidal instability index provide a higher conversion rate and lower fouling rate in the H-Oil unit. The regression equations developed in this work allow quantitative assessment of the performance of crucial refining units like the H-Oil , fluid catalytic cracker, naphtha reformer, and gas oil hydrotreatment based on laboratory oil test results.

Keywords: crude oil; oil acidity; asphaltenes; PIONA; hydrocracking; FCC; intercriteria analysis; fouling (search for similar items in EconPapers)
JEL-codes: Q1 Q2 Q3 Q4 Q5 (search for similar items in EconPapers)
Date: 2024
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