Zobrazeno 1 - 10
of 12
pro vyhledávání: '"V. P. Sergun"'
Autor:
Tatiana A. Sagachenko, Tatiana V. Cheshkova, N. N. Gerasimova, R. S. Min, V. P. Sergun, Elena Yu. Kovalenko
Publikováno v:
Energy & Fuels. 33:7971-7982
The complex of physicochemical methods of analysis (elemental analysis, cryoscopy in benzene, IR and ¹H NMR spectroscopies, structural group analysis, gas chromatography–mass spectrometry, and selective chemical cleavage of sulfide and ether bonds
Autor:
Tatiana V. Cheshkova, E. Yu. Kovalenko, T. A. Sagachenko, R. S. Min, S. S. Yanovskaya, V. P. Sergun
Publikováno v:
Chemistry and Technology of Fuels and Oils. 52:293-299
The composition of the structural fragments of resinous and asphaltic molecules in Usinsk heavy oil containing C – S sulfide bonds and of organosulfur compounds in the oily components of this petroleum was studied. The composition of the sulfur–c
Publikováno v:
Petroleum Chemistry. 56:10-15
Chemolysis of ether/ester and sulfide bonds in the molecules of high- and low-molecular-weight asphaltenes of heavy crude oil from the Usa oil field has been performed, and the composition of the liquid products of their cleavage has been studied. It
Publikováno v:
AIP Conference Proceedings.
Autor:
Tatiana A. Sagachenko, Elena Yu. Kovalenko, Tatiana V. Cheshkova, A. A. Grin’ko, R. S. Min, V. P. Sergun
Publikováno v:
AIP Conference Proceedings.
The data are presented on changes in the structure of asphaltenes in the heavy oil sample from the Usinskoye oil field during their thermal transformation at 300 and 450°C and in fragments bound in their molecules via ether and sulfide bridges. It i
Publikováno v:
Petroleum Chemistry. 54:83-87
By the extraction, adsorption chromatography, it has been shown that asphaltene macromolecules from Usa crude oil contain compounds with a relatively low molecular mass represented by normal and branched alkanes; mono- and polycyclic naphthenes; mono
Publikováno v:
Chemistry and Technology of Fuels and Oils. 49:522-531
We have studied the structure of asphaltenes in heavy crude oil according to a flow chart eliminating the step of their thermal degradation and proposing separation of asphaltenes into high molecular weight components, “low molecular weight asphalt
Autor:
V. P. Sergun, R. S. Min
Publikováno v:
Petroleum Chemistry. 52:68-73
The composition and structure of sulfur compounds in low-, medium-, and high-sulfur crude oils from the Jurassic-Paleozoic play of Western Siberia have been studied. It has been shown that the distribution of organic sulfur compounds in the oils is d
Publikováno v:
Chemistry and Technology of Fuels and Oils. 47:351-357
It is shown for crude oils from the Usin field that the content of polar high-molecular sulfur compounds and low-molecular weakly basic nitrogen compounds increases in heavy crude under the action of steam. The compositions used to increase the oil y
Publikováno v:
AIP Conference Proceedings.
Asphaltene substances of oil are characterized via the methods of extraction, adsorption chromatography, chemical degradation, and chromatography-mass spectrometry. The data on the structure of the high- and low molecular weight asphaltenes of methan