Composition of the Products of Low-Temperature Destruction of Asphaltenes of Heavy Oil and Oil Residues

Composition of the Products of Low-Temperature Destruction of Asphaltenes of Heavy Oil and Oil Residues Научная публикация

Журнал

Chemistry for Sustainable Development
ISSN: 1817-1818

Вых. Данные

Год: 2020, Том: 28, Номер: 3, Страницы: 242-247 Страниц : 6 DOI: 10.15372/csd2020226

Авторы

Korneev D.S. ^1,2 , Pevneva G.S. ¹

Организации

1	Institute of Petroleum Chemistry, Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia
2	Yugra State University, Khanty-Mansiysk, Russia

The ability of heavy oil asphaltenes and oil residues to generate low and high molecular weight components during thermolysis at 290 °C is assessed. It was established that the conversion of asphaltenes exceeds 99 mass %, regardless of the degree of their transformation during the rectification of heavy oil. Oil asphaltenes generate the maximal amount of resins (21.4 mass %). while fuel oil and tar asphaltenes generate 9.4 and 7.3 mass %, respectively. It was shown that thermal transformations of asphaltenes during the rectification of heavy oil lead to the removal of large structural fragments from their molecules, thereby reducing the ability of asphaltenes to generate resinous substances at 290 °C. At the same time, the molecular structure of asphaltenes is compacted, which leads to an increase in their tendency to form coke-like products. The yield of coke-like products of the low-temperature thermolysis of asphaltenes from oil, fuel oil and tar is 42.1, 54.4 and 58.1 mass %, respectively. It is established that the thermal transformations of asphaltenes in the process of heavy oil rectification do not have any significant effect on their ability to generate gas and liquid hydrocarbons during thermal degradation. The results of the study should be taken into account when developing new technologies for the primary processing of heavy crude oils and upgrading the existing ones.

Korneev D.S. , Pevneva G.S.
Composition of the Products of Low-Temperature Destruction of Asphaltenes of Heavy Oil and Oil Residues
Chemistry for Sustainable Development. 2020. V.28. N3. P.242-247. DOI: 10.15372/csd2020226 WOS РИНЦ OpenAlex

Корнеев Д.С. , Певнева Г.С.
Состав продуктов низкотемпературной деструкции асфальтенов тяжелой нефти и нефтяных остатков
Химия в интересах устойчивого развития. 2020. Т.28. №3. С.252-257. DOI: 10.15372/khur2020226 РИНЦ CAPlus OpenAlex

Опубликована online:

21 дек. 2024 г.

Web of science:	WOS:000612318900004
РИНЦ:	75380553
OpenAlex:	W4243456313

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