Relationship of specific absorption factor of oil, natural bitumen and their components in visible spectral region with the parameters of their compositions
The relevance of the discussed issue is caused by the necessity of an express assessment of the component compositions of oils, some of their physicochemical and technological properties, including control over development of oil deposits. The published data indicate that for such assessment the spe...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | Russian |
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Tomsk Polytechnic University
2016-08-01
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| Series: | Известия Томского политехнического университета: Инжиниринг георесурсов |
| Subjects: | |
| Online Access: | http://izvestiya-tpu.ru/archive/article/view/1763 |
| _version_ | 1797812414661525504 |
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| author | Vladimir Rodionovich Antipenko Tatyana Vasilievna Petrenko Olga Sergeevna Bakanova Vladimir Danilovich Ogorodnikov |
| author_facet | Vladimir Rodionovich Antipenko Tatyana Vasilievna Petrenko Olga Sergeevna Bakanova Vladimir Danilovich Ogorodnikov |
| author_sort | Vladimir Rodionovich Antipenko |
| collection | DOAJ |
| description | The relevance of the discussed issue is caused by the necessity of an express assessment of the component compositions of oils, some of their physicochemical and technological properties, including control over development of oil deposits. The published data indicate that for such assessment the specific absorption factor of their solutions at fixed wavelengths in different regions of absorption spectrum or the area under the curve of absorption in all regions of the absorption spectrum are used. Violation of linear dependence of optical density on concentration in the absorption spectra of oil and oil fraction solutions enables to study the processes of formation and destruction of associates in oil systems. At the same time there are practically no attempts in literature to search for correlation between the specific absorption factor and the parameters characterizing the occurrence and relative content of various structural fragments in oils and oil fraction. The main aim of the study is to reveal possible correlations between the values of specific absorption factor in visible spectral region and the parameters characterizing the occurrence and relative content of various structural fragments in oils and oil fraction. The methods used in the study: spectrophotometry in visible absorption spectrum, IR- and 1H NMR spectroscopy methods, correlation analysis. The results. The authors have determined different spectral characteristics in visible region of the absorption spectrum (specific absorption factor at a wavelength of 500 nm, chromaticity coefficient is E4/E6) of oils, natural bitumen and fraction obtained during their extraction-chromatographic separation (oily components, resins and asphaltenes). The correlation between the specific absorption factor of the investigated samples solutions at a wavelength of 500 nm (K500) and the characteristics of the investigated samples obtained by the methods of IR- and 1H NMR spectroscopy, reflecting the relative content of aromatic and aliphatic structural fragments in their compositions, was determined. The approximation credibility (R2) magnitude has the highest values (from 0,790 to 0,892) only in the case of K500 functional connection with the parameters reflecting the content of aromatic structural fragments for the total set of the investigated samples and the total set of the investigated oils and natural bitumen. There is no correlation for individual fractions. |
| first_indexed | 2024-03-13T07:37:07Z |
| format | Article |
| id | doaj.art-e439ba6953894943b10d46dce5bf5ded |
| institution | Directory Open Access Journal |
| issn | 2500-1019 2413-1830 |
| language | Russian |
| last_indexed | 2024-03-13T07:37:07Z |
| publishDate | 2016-08-01 |
| publisher | Tomsk Polytechnic University |
| record_format | Article |
| series | Известия Томского политехнического университета: Инжиниринг георесурсов |
| spelling | doaj.art-e439ba6953894943b10d46dce5bf5ded2023-06-03T21:13:00ZrusTomsk Polytechnic UniversityИзвестия Томского политехнического университета: Инжиниринг георесурсов2500-10192413-18302016-08-013276Relationship of specific absorption factor of oil, natural bitumen and their components in visible spectral region with the parameters of their compositionsVladimir Rodionovich AntipenkoTatyana Vasilievna PetrenkoOlga Sergeevna BakanovaVladimir Danilovich OgorodnikovThe relevance of the discussed issue is caused by the necessity of an express assessment of the component compositions of oils, some of their physicochemical and technological properties, including control over development of oil deposits. The published data indicate that for such assessment the specific absorption factor of their solutions at fixed wavelengths in different regions of absorption spectrum or the area under the curve of absorption in all regions of the absorption spectrum are used. Violation of linear dependence of optical density on concentration in the absorption spectra of oil and oil fraction solutions enables to study the processes of formation and destruction of associates in oil systems. At the same time there are practically no attempts in literature to search for correlation between the specific absorption factor and the parameters characterizing the occurrence and relative content of various structural fragments in oils and oil fraction. The main aim of the study is to reveal possible correlations between the values of specific absorption factor in visible spectral region and the parameters characterizing the occurrence and relative content of various structural fragments in oils and oil fraction. The methods used in the study: spectrophotometry in visible absorption spectrum, IR- and 1H NMR spectroscopy methods, correlation analysis. The results. The authors have determined different spectral characteristics in visible region of the absorption spectrum (specific absorption factor at a wavelength of 500 nm, chromaticity coefficient is E4/E6) of oils, natural bitumen and fraction obtained during their extraction-chromatographic separation (oily components, resins and asphaltenes). The correlation between the specific absorption factor of the investigated samples solutions at a wavelength of 500 nm (K500) and the characteristics of the investigated samples obtained by the methods of IR- and 1H NMR spectroscopy, reflecting the relative content of aromatic and aliphatic structural fragments in their compositions, was determined. The approximation credibility (R2) magnitude has the highest values (from 0,790 to 0,892) only in the case of K500 functional connection with the parameters reflecting the content of aromatic structural fragments for the total set of the investigated samples and the total set of the investigated oils and natural bitumen. There is no correlation for individual fractions.http://izvestiya-tpu.ru/archive/article/view/1763crude oilsnatural bitumensoilsresinsasphaltenesstructural fragments |
| spellingShingle | Vladimir Rodionovich Antipenko Tatyana Vasilievna Petrenko Olga Sergeevna Bakanova Vladimir Danilovich Ogorodnikov Relationship of specific absorption factor of oil, natural bitumen and their components in visible spectral region with the parameters of their compositions Известия Томского политехнического университета: Инжиниринг георесурсов crude oils natural bitumens oils resins asphaltenes structural fragments |
| title | Relationship of specific absorption factor of oil, natural bitumen and their components in visible spectral region with the parameters of their compositions |
| title_full | Relationship of specific absorption factor of oil, natural bitumen and their components in visible spectral region with the parameters of their compositions |
| title_fullStr | Relationship of specific absorption factor of oil, natural bitumen and their components in visible spectral region with the parameters of their compositions |
| title_full_unstemmed | Relationship of specific absorption factor of oil, natural bitumen and their components in visible spectral region with the parameters of their compositions |
| title_short | Relationship of specific absorption factor of oil, natural bitumen and their components in visible spectral region with the parameters of their compositions |
| title_sort | relationship of specific absorption factor of oil natural bitumen and their components in visible spectral region with the parameters of their compositions |
| topic | crude oils natural bitumens oils resins asphaltenes structural fragments |
| url | http://izvestiya-tpu.ru/archive/article/view/1763 |
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