Study of Bulk Properties Relation to SARA Composition Data of Various Vacuum Residues Employing Intercriteria Analysis

Twenty-two straight run vacuum residues extracted from extra light, light, medium, heavy, and extra heavy crude oils and nine different hydrocracked vacuum residues were characterized for their bulk properties and SARA composition using four and eight fractions (SAR-ADTM) methods. Intercriteria anal...

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Bibliographic Details
Published in:Energies (Basel) 2022-12, Vol.15 (23), p.9042
Main Authors: Stratiev, Dicho, Shishkova, Ivelina, Palichev, Georgi Nikolov, Atanassov, Krassimir, Ribagin, Simeon, Nenov, Svetoslav, Nedanovski, Dimitar, Ivanov, Vitaly
Format: Article
Language:English
Subjects:
Analysis
Asphaltenes
Catalytic cracking
Chromatography
Composition
Computer algebra
Correlation
Crude oil
Fractionation
Fractions
Heavy petroleum
hydrocracked vacuum residue
intercriteria analysis
Investigations
Kinematics
Laboratories
Methods
modeling
Oil and gas operations
Petroleum
Refining
Residues
Resins
SAR-ADTM
SARA
Softening
Softening points
Sulfur content
Vacuum
vacuum residue
Viscosity
Wastes
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Summary:Twenty-two straight run vacuum residues extracted from extra light, light, medium, heavy, and extra heavy crude oils and nine different hydrocracked vacuum residues were characterized for their bulk properties and SARA composition using four and eight fractions (SAR-ADTM) methods. Intercriteria analysis was employed to determine the statistically meaningful relations between the SARA composition data and the bulk properties. The determined strong relations were modeled using the computer algebra system Maple and NLPSolve with the Modified Newton Iterative Method. It was found that the SAR-ADTM saturates, and the sum of the contents of saturates and ARO-1 can be predicted from vacuum residue density, while the SAR-ADTM asphaltene fraction content, and the sum of asphaltenes, and resins contents correlate with the softening point of the straight run vacuum residues. The softening point of hydrocracked vacuum residues was found to strongly negatively correlates with SAR-ADTM Aro-1 fraction, and strongly positively correlates with SAR-ADTM Aro-3 fraction. While in the straight run vacuum residues, the softening point is controlled by the content of SAR-ADTM asphaltene fraction in the H-Oil hydrocracked vacuum residues, the softening point is controlled by the content of SAR-ADTM Aro-3 fraction content. During high severity H-Oil operation, resulting in higher conversion, hydrocracked vacuum residue with higher SAR-ADTM Aro-3 fraction content is obtained, which makes it harder and more brittle.
ISSN:1996-1073
1996-1073
DOI:10.3390/en15239042