Яндекс.Метрика

A.V.Goncharov,E.B.Krivtsov,N.N.Sviridenko, A.K. Golovko

Выпуск: 1 , Том: 2167 , Год издания: 2019
Сериальное издание: AIP Conference Proceedings. Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures (Tomsk, Russia, 1-5 October 2019)
Страницы: 020115-020115

Аннотация

The decrease in reserves of light and medium oils leads to an annual increase in the production of highly resinous viscous oils. As a consequence the proportion of heavy raw materials entering on refineries increases. The content of vacuum residues in the products of vacuum distillation of heavy oils can reach 30 wt % and more. The processing of vacuum residues is complicated by the high content of resin-asphaltene substances present in them. To develop effective methods for cracking of high molecular weight components of oils, the knowledge of their thermal stability and changes in composition and structure of ongoing processes is necessary. Three samples of high-sulfur vacuum residue were cracked in an autoclave reactor at a temperature of 500°C and various process durations. The decrease in the content of resins and asphaltenes in the liquid products of vacuum residues is due to coke formation reactions. Residual resins and asphaltenes are characterized by a high content of aromatic fragments, a decrease in the number of naphthenic and the length of aliphatic structures. The results obtained are important for understanding the laws of thermal transformations of resin components.
индекс в базе ИАЦ: 041446