Chemical composition of Pechora Sea crude oil
The physicochemical properties of the Pechora Sea shelf oil and its chemical composition have been studied using the methods of refractometry, titrimetry, viscometry, rheometry and standard methods for the analysis of oil and petroleum products. The fractionation of oil is held at atmospheric pres...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | Russian |
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Murmansk State Technical University
2017-03-01
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| Series: | Vestnik MGTU |
| Subjects: | |
| Online Access: | http://vestnik.mstu.edu.ru/show-eng.shtml?art=1847&pdf=1 |
| _version_ | 1811249516174639104 |
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| author | Derkach S. R. Berestova G. I. Novikov V. Yu. Kolotova D. S. Brichka K. M. Galina Simonsen |
| author_facet | Derkach S. R. Berestova G. I. Novikov V. Yu. Kolotova D. S. Brichka K. M. Galina Simonsen |
| author_sort | Derkach S. R. |
| collection | DOAJ |
| description | The physicochemical properties of the Pechora Sea shelf oil and its chemical composition have been studied
using the methods of refractometry, titrimetry, viscometry, rheometry and standard methods for the analysis of
oil and petroleum products. The fractionation of oil is held at atmospheric pressure, some fractions boiling at the
temperature below and above 211 °C have been received. Chemical structural-group composition of oil and its
components has been investigated using a Fourier infrared (IR) spectroscopy method. The density of oil has been
obtained, it is equal to 24.2 API. The chemical composition analysis shows that water content in the investigated
oil sample is about 0.03 % (by weight). The oil sample contains hydrocarbons (including alkanes, naphthenes,
arenes) and asphaltenes with resins; their content is equal to 89 and 10 % (by weight) respectively. Alkane
content is about 66 %, including alkanes of normal structure – about 37 %. The solidification temperature of oil
sample is equal to –43 °C. This low temperature testifies obliquely low content of solid alkanes (paraffin).
Bearing in mind the content of asphaltenes with resins we can refer the investigated oil sample to resinous oils.
On the other hand spectral coefficient values (aromaticity quotient and aliphaticity quotient) show that oil sample
belongs to naphthenic oils. According to the data of Fourier IR spectroscopy contents of naphthenes and arenes
are 5.9 and 17.8 % respectively. Thus, the obtained data of chemical structural-group composition of crude oil
and its fractions indicate that this oil belongs to the heavy resinous naphthenic oils. The rheological parameters
obtained at the shear deformation conditions characterize the crude oil as a visco-plastic medium. |
| first_indexed | 2024-04-12T15:47:46Z |
| format | Article |
| id | doaj.art-a0428fec8a7542f686f2d146d78e12f3 |
| institution | Directory Open Access Journal |
| issn | 1560-9278 1997-4736 |
| language | Russian |
| last_indexed | 2024-04-12T15:47:46Z |
| publishDate | 2017-03-01 |
| publisher | Murmansk State Technical University |
| record_format | Article |
| series | Vestnik MGTU |
| spelling | doaj.art-a0428fec8a7542f686f2d146d78e12f32022-12-22T03:26:36ZrusMurmansk State Technical UniversityVestnik MGTU1560-92781997-47362017-03-01201/1384710.21443/1560-9278-2017-20-1/1-38-47Chemical composition of Pechora Sea crude oilDerkach S. R.0Berestova G. I.1Novikov V. Yu. 2Kolotova D. S. 3Brichka K. M. 4Galina Simonsen5 Murmansk State Technical University; Murmansk State Technical University; Knipovich Polar Research Institute of Marine Fisheries and Oceanography Murmansk State Technical University Murmansk State Technical University Norwegian University of Science and TechnologyThe physicochemical properties of the Pechora Sea shelf oil and its chemical composition have been studied using the methods of refractometry, titrimetry, viscometry, rheometry and standard methods for the analysis of oil and petroleum products. The fractionation of oil is held at atmospheric pressure, some fractions boiling at the temperature below and above 211 °C have been received. Chemical structural-group composition of oil and its components has been investigated using a Fourier infrared (IR) spectroscopy method. The density of oil has been obtained, it is equal to 24.2 API. The chemical composition analysis shows that water content in the investigated oil sample is about 0.03 % (by weight). The oil sample contains hydrocarbons (including alkanes, naphthenes, arenes) and asphaltenes with resins; their content is equal to 89 and 10 % (by weight) respectively. Alkane content is about 66 %, including alkanes of normal structure – about 37 %. The solidification temperature of oil sample is equal to –43 °C. This low temperature testifies obliquely low content of solid alkanes (paraffin). Bearing in mind the content of asphaltenes with resins we can refer the investigated oil sample to resinous oils. On the other hand spectral coefficient values (aromaticity quotient and aliphaticity quotient) show that oil sample belongs to naphthenic oils. According to the data of Fourier IR spectroscopy contents of naphthenes and arenes are 5.9 and 17.8 % respectively. Thus, the obtained data of chemical structural-group composition of crude oil and its fractions indicate that this oil belongs to the heavy resinous naphthenic oils. The rheological parameters obtained at the shear deformation conditions characterize the crude oil as a visco-plastic medium.http://vestnik.mstu.edu.ru/show-eng.shtml?art=1847&pdf=1a: oilfraction compositionparaffinsnaphthenesarenesresinsasphaltenesdensity |
| spellingShingle | Derkach S. R. Berestova G. I. Novikov V. Yu. Kolotova D. S. Brichka K. M. Galina Simonsen Chemical composition of Pechora Sea crude oil Vestnik MGTU a : oil fraction composition paraffins naphthenes arenes resins asphaltenes density |
| title | Chemical composition of Pechora Sea crude oil |
| title_full | Chemical composition of Pechora Sea crude oil |
| title_fullStr | Chemical composition of Pechora Sea crude oil |
| title_full_unstemmed | Chemical composition of Pechora Sea crude oil |
| title_short | Chemical composition of Pechora Sea crude oil |
| title_sort | chemical composition of pechora sea crude oil |
| topic | a : oil fraction composition paraffins naphthenes arenes resins asphaltenes density |
| url | http://vestnik.mstu.edu.ru/show-eng.shtml?art=1847&pdf=1 |
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