КФУ. Карточка публикации. Qualitative and Quantitative Analysis of Heavy Crude Oil Samples and Their SARA Fractions with 13C Nuclear Magnetic Resonance

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QUALITATIVE AND QUANTITATIVE ANALYSIS OF HEAVY CRUDE OIL SAMPLES AND THEIR SARA FRACTIONS WITH 13C NUCLEAR MAGNETIC RESONANCE

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2020

Язык

английский

Авторы, сотрудники КФУ

Аль-Мунтасер Амин Ахмед Мохаммед , автор

Варфоломеев Михаил Алексеевич, автор

Гафуров Марат Ревгерович, автор

Ефимов Сергей Владимирович, автор

Клочков Владимир Васильевич, автор

Рахматуллин Ильфат Зуфарович, автор

Тюрин Владимир Александрович, автор

Библиографическое описание на языке оригинала

Qualitative and Quantitative Analysis of Heavy Crude Oil Samples and Their SARA Fractions with 13C Nuclear Magnetic Resonance / I. Rakhmatullin, S. Efimov, V. Tyurin, M. Gafurov, A. Al-Muntaser, M. Varfolomeev, V. Klochkov // Processes. – 2020. – V. 8. – Article 995.

Аннотация

Abstract Nuclear magnetic resonance (NMR) approaches have unique advantages in the analysis of crude oil because they are non-destructive and provide information on chemical functional groups. Nevertheless, the correctness and effectiveness of NMR techniques for determining saturates, aromatics, resins, and asphaltenes (SARA analysis) without oil fractioning are still not clear. In this work we compared the measurements and analysis of high-resolution 13C NMR spectra in B0 ≈ 16.5 T (NMR frequency of 175 MHz) with the results of SARA fractioning for four various heavy oil samples with viscosities ranging from 100 to 50,000 mPa?s. The presence of all major hydrocarbon components both in crude oil and in each of its fractions was established quantitatively using NMR spectroscopy. Contribution of SARA fractions in the aliphatic (10–60 ppm) and aromatic (110–160 ppm) areas of the 13C NMR spectra were identified. Quantitative fractions of aromatic molecules and oil functional groups were determined. Aromaticity factor and the mean length of the hydrocarbon chain were estimated. The obtained results show the feasibility of 13C NMR spectroscopy for the express analysis of oil from physical properties to the composition of functional groups to follow oil treatment processes.

Ключевые слова

13C NMR spectroscopy, crude oil, oil fraction, quantitative composition, SARA, aromaticity

Название журнала

Processes

URL

https://www.mdpi.com/journal/processes

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https://repository.kpfu.ru/?p_id=237637

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Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Аль-Мунтасер Амин Ахмед Мохаммед	ru_RU
dc.contributor.author	Варфоломеев Михаил Алексеевич	ru_RU
dc.contributor.author	Гафуров Марат Ревгерович	ru_RU
dc.contributor.author	Ефимов Сергей Владимирович	ru_RU
dc.contributor.author	Клочков Владимир Васильевич	ru_RU
dc.contributor.author	Рахматуллин Ильфат Зуфарович	ru_RU
dc.contributor.author	Тюрин Владимир Александрович	ru_RU
dc.date.accessioned	2020-01-01T00:00:00Z	ru_RU
dc.date.available	2020-01-01T00:00:00Z	ru_RU
dc.date.issued	2020	ru_RU
dc.identifier.citation	Qualitative and Quantitative Analysis of Heavy Crude Oil Samples and Their SARA Fractions with 13C Nuclear Magnetic Resonance / I. Rakhmatullin, S. Efimov, V. Tyurin, M. Gafurov, A. Al-Muntaser, M. Varfolomeev, V. Klochkov // Processes. – 2020. – V. 8. – Article 995.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=237637	ru_RU
dc.description.abstract	Processes	ru_RU
dc.description.abstract	Abstract Nuclear magnetic resonance (NMR) approaches have unique advantages in the analysis of crude oil because they are non-destructive and provide information on chemical functional groups. Nevertheless, the correctness and effectiveness of NMR techniques for determining saturates, aromatics, resins, and asphaltenes (SARA analysis) without oil fractioning are still not clear. In this work we compared the measurements and analysis of high-resolution 13C NMR spectra in B0 ≈ 16.5 T (NMR frequency of 175 MHz) with the results of SARA fractioning for four various heavy oil samples with viscosities ranging from 100 to 50,000 mPa?s. The presence of all major hydrocarbon components both in crude oil and in each of its fractions was established quantitatively using NMR spectroscopy. Contribution of SARA fractions in the aliphatic (10–60 ppm) and aromatic (110–160 ppm) areas of the 13C NMR spectra were identified. Quantitative fractions of aromatic molecules and oil functional groups were determined. Aromaticity factor and the mean length of the hydrocarbon chain were estimated. The obtained results show the feasibility of 13C NMR spectroscopy for the express analysis of oil from physical properties to the composition of functional groups to follow oil treatment processes.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	13C NMR spectroscopy	ru_RU
dc.subject	crude oil	ru_RU
dc.subject	oil fraction	ru_RU
dc.subject	quantitative composition	ru_RU
dc.subject	SARA	ru_RU
dc.subject	aromaticity	ru_RU
dc.title	Qualitative and Quantitative Analysis of Heavy Crude Oil Samples and Their SARA Fractions with 13C Nuclear Magnetic Resonance	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU