Effect of chemical composition and quality of heavy Yarega oil on selection of appropriate processing technology
- 1 — Ph.D., Dr.Sci. head of department Saint-Petersburg Mining University
- 2 — Ph.D., Dr.Sci. Head of the Project of the Mexican Petroleum Institute National Polytechnical Institute
Abstract
The paper explores physical and chemical properties and composition of heavy oil from Yarega field and its vacuum residue, i.e. the tar. The capillary chromatography and gas chromatography-mass spectrometry were used to identify specific group hydrocarbon composition of heavy Yarega oil and components extracted therefrom, which has proven its belonging to highly resinous sulfurous naphthenic and aromatic oils. Based on the comparative analysis of composition and quality of feedstock a possibility has been assessed to produce a high-quality needle coke with low content of sulphur and metals from the heavy oil of Yarega field and its vacuum residue. An integrated process flow diagram for heavy Yarega oil refinement has been proposed, including preliminary deasphalting and demetallization, hydrotreatment, delayed coking and thermodestructive processes or gasification.
Funding
The authors would like to express their gratitude to A.A. Boytsova, the post-graduate student of the Department of Chemical Technology and Energy Carriers Processing at St. Petersburg Mining University for carrying out experimental studies. The research was conducted within the frames of a grant provided by the Russian Science Foundation (Project N 15-17-00017)