CHEMICAL COMPOSITION OF PETROLEUM FROM KRAPIVINSKOE OILFIELD (MESSAGE 5)
The relevance. Accumulation of data on the structure of asphaltenes of methane-naphthenic oil of the Krapivinskoe oil field from the Upper Jurassic deposits in the territory of the Tomsk region is one of the conditions necessary for solving problems associated with its production, transportation, an...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | Russian |
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Tomsk Polytechnic University
2022-03-01
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| Series: | Известия Томского политехнического университета: Инжиниринг георесурсов |
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| Online Access: | http://izvestiya.tpu.ru/archive/article/view/3343/2660 |
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| author | Tatyana V. Cheshkova Elena Yu. Kovalenko Tatyana A. Sagachenko Raisa S. Min |
| author_facet | Tatyana V. Cheshkova Elena Yu. Kovalenko Tatyana A. Sagachenko Raisa S. Min |
| author_sort | Tatyana V. Cheshkova |
| collection | DOAJ |
| description | The relevance. Accumulation of data on the structure of asphaltenes of methane-naphthenic oil of the Krapivinskoe oil field from the Upper Jurassic deposits in the territory of the Tomsk region is one of the conditions necessary for solving problems associated with its production, transportation, and processing. The purpose of the work is to study the composition of asphaltenes in oil from the Krapivinskoe oil field using the oxidation reaction catalyzed by ruthenium ions. The object of investigation is the fraction of high molecular weight asphaltenes that make up the bulk of asphaltene components of the Krapivinskoe oil (87,9 % rel.). Methods: selective chemical destruction of Car.–C bonds using the oxidation reaction catalyzed by ruthenium ions and gas chromatography-mass spectrometry. Results. It was found out that the composition of high-molecular-weight asphaltenes of methane-naphthene oil contains fragments bound to the cores of their molecules through the Сar.–C bridges and occluded compounds. Covalently bound fragments are represented by C5–C18 n-alkanes, aromatic structures of the biphenyl type, and naphthalenes located at the periphery of asphaltene molecules. Among the occluded compounds n-alkanes, alkylcycloalkanes, steranes, terpanes, alkylbenzenes, naphthalenes, phenanthrenes, fluorenes, pyrene, chrysene, fluoranthene, biphenyls, phenylnaphthalenes, dibenzothiophenes, benzonaphthothiophenes, indole, carbazol, quinoline, benzoquinolines, phenols, dibenzofurans, and benznaphtofurans were identified. Saturated hydrocarbons are typical biological markers; they are trapped in hollow cells of macromolecular formations of asphaltenes during kerogen cracking. Aromatic hydrocarbons and heteroorganic compounds are products of thermal destruction of parent asphaltenes; they are blocked by geomacromolecules at later stages of the formation of their macrostructure. The information obtained expands the understanding of the structure of asphaltenes in oil dispersed systems, so it may be used to construct a hypothetical model of their molecules. |
| first_indexed | 2024-12-10T03:39:18Z |
| format | Article |
| id | doaj.art-3ef7f3f60f69413bbc404b5ce5e09155 |
| institution | Directory Open Access Journal |
| issn | 2500-1019 2413-1830 |
| language | Russian |
| last_indexed | 2024-12-10T03:39:18Z |
| publishDate | 2022-03-01 |
| publisher | Tomsk Polytechnic University |
| record_format | Article |
| series | Известия Томского политехнического университета: Инжиниринг георесурсов |
| spelling | doaj.art-3ef7f3f60f69413bbc404b5ce5e091552022-12-22T02:03:37ZrusTomsk Polytechnic UniversityИзвестия Томского политехнического университета: Инжиниринг георесурсов2500-10192413-18302022-03-01333371410.18799/24131830/2022/3/3343CHEMICAL COMPOSITION OF PETROLEUM FROM KRAPIVINSKOE OILFIELD (MESSAGE 5)Tatyana V. Cheshkova0Elena Yu. Kovalenko1Tatyana A. Sagachenko2Raisa S. Min3Institute of petroleum chemistry Siberian branch Russian academy of scienceInstitute of petroleum chemistry Siberian branch Russian academy of scienceInstitute of petroleum chemistry Siberian branch Russian academy of scienceInstitute of petroleum chemistry Siberian branch Russian academy of scienceThe relevance. Accumulation of data on the structure of asphaltenes of methane-naphthenic oil of the Krapivinskoe oil field from the Upper Jurassic deposits in the territory of the Tomsk region is one of the conditions necessary for solving problems associated with its production, transportation, and processing. The purpose of the work is to study the composition of asphaltenes in oil from the Krapivinskoe oil field using the oxidation reaction catalyzed by ruthenium ions. The object of investigation is the fraction of high molecular weight asphaltenes that make up the bulk of asphaltene components of the Krapivinskoe oil (87,9 % rel.). Methods: selective chemical destruction of Car.–C bonds using the oxidation reaction catalyzed by ruthenium ions and gas chromatography-mass spectrometry. Results. It was found out that the composition of high-molecular-weight asphaltenes of methane-naphthene oil contains fragments bound to the cores of their molecules through the Сar.–C bridges and occluded compounds. Covalently bound fragments are represented by C5–C18 n-alkanes, aromatic structures of the biphenyl type, and naphthalenes located at the periphery of asphaltene molecules. Among the occluded compounds n-alkanes, alkylcycloalkanes, steranes, terpanes, alkylbenzenes, naphthalenes, phenanthrenes, fluorenes, pyrene, chrysene, fluoranthene, biphenyls, phenylnaphthalenes, dibenzothiophenes, benzonaphthothiophenes, indole, carbazol, quinoline, benzoquinolines, phenols, dibenzofurans, and benznaphtofurans were identified. Saturated hydrocarbons are typical biological markers; they are trapped in hollow cells of macromolecular formations of asphaltenes during kerogen cracking. Aromatic hydrocarbons and heteroorganic compounds are products of thermal destruction of parent asphaltenes; they are blocked by geomacromolecules at later stages of the formation of their macrostructure. The information obtained expands the understanding of the structure of asphaltenes in oil dispersed systems, so it may be used to construct a hypothetical model of their molecules.http://izvestiya.tpu.ru/archive/article/view/3343/2660high molecular weight asphaltenesoxidationruthenium ionsstructural fragmentsoccluded compoundscomposition |
| spellingShingle | Tatyana V. Cheshkova Elena Yu. Kovalenko Tatyana A. Sagachenko Raisa S. Min CHEMICAL COMPOSITION OF PETROLEUM FROM KRAPIVINSKOE OILFIELD (MESSAGE 5) Известия Томского политехнического университета: Инжиниринг георесурсов high molecular weight asphaltenes oxidation ruthenium ions structural fragments occluded compounds composition |
| title | CHEMICAL COMPOSITION OF PETROLEUM FROM KRAPIVINSKOE OILFIELD (MESSAGE 5) |
| title_full | CHEMICAL COMPOSITION OF PETROLEUM FROM KRAPIVINSKOE OILFIELD (MESSAGE 5) |
| title_fullStr | CHEMICAL COMPOSITION OF PETROLEUM FROM KRAPIVINSKOE OILFIELD (MESSAGE 5) |
| title_full_unstemmed | CHEMICAL COMPOSITION OF PETROLEUM FROM KRAPIVINSKOE OILFIELD (MESSAGE 5) |
| title_short | CHEMICAL COMPOSITION OF PETROLEUM FROM KRAPIVINSKOE OILFIELD (MESSAGE 5) |
| title_sort | chemical composition of petroleum from krapivinskoe oilfield message 5 |
| topic | high molecular weight asphaltenes oxidation ruthenium ions structural fragments occluded compounds composition |
| url | http://izvestiya.tpu.ru/archive/article/view/3343/2660 |
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