Catalytic Aquathermolysis of High-Viscosity Oil Using Iron, Cobalt, and Copper Tallates
- Authors: Feoktistov D.A.1, Kayukova G.P.1, Vakhin A.V.1, Sitnov S.A.1
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Affiliations:
- Kazan (Privolzhskii) Federal University
- Issue: Vol 53, No 6 (2018)
- Pages: 905-912
- Section: Article
- URL: https://journals.rcsi.science/0009-3092/article/view/235290
- DOI: https://doi.org/10.1007/s10553-018-0880-4
- ID: 235290
Cite item
Abstract
The results of a study of the composition of active forms of the catalyst formed upon degradation of the precursor, based on the results of physical modeling of a sample of high-viscosity oil having high asphaltene and resin contents, are presented. Oil-soluble iron, cobalt, and copper tallates were used as the objects of the study. The composition of the separated powder of the active form of the catalyst was determined by X-ray diffraction analysis, and the catalyst particle size was determined by scanning electron microscopy. The SARA (saturate, aromatic, resin and asphaltene) analysis data revealed a marked decrease in high-molecular-weight oil components due to thermocatalytic cracking. The basic transformation mechanism is breakdown of the high-molecular-weight compounds along the sulfur-bearing bonds, as indicated by elemental CHNS (carbon, hydrogen, nitrogen and sulfur) analysis data. It is shown that the cobalt- and copper-based oil-soluble complexes turn are converted to sulfide forms and the iron-based complex is converted to the oxide form. According to the results of scanning electron microscopic analysis of the catalyst, the particle size is about 60 nm.
About the authors
D. A. Feoktistov
Kazan (Privolzhskii) Federal University
Email: vahin-a_v@mail.ru
Russian Federation, Kazan’
G. P. Kayukova
Kazan (Privolzhskii) Federal University
Email: vahin-a_v@mail.ru
Russian Federation, Kazan’
A. V. Vakhin
Kazan (Privolzhskii) Federal University
Author for correspondence.
Email: vahin-a_v@mail.ru
Russian Federation, Kazan’
S. A. Sitnov
Kazan (Privolzhskii) Federal University
Email: vahin-a_v@mail.ru
Russian Federation, Kazan’