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The mechanism of ultrasonic irradiation effect on viscosity variations of heavy crude oil

Viscosity reduction of heavy oil has economic benefits and applicational value in the field. Applying viscosity reduction technology of heavy oil with ultrasound, this paper examines the influence of ultrasonic irradiation time and the addition of tetralin and ethylene glycol on viscosity reduction...

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Autores principales: Gao, Jinbiao, Li, Chao, Xu, Delong, Wu, Pengfei, Lin, Weijun, Wang, Xiuming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8637133/
https://www.ncbi.nlm.nih.gov/pubmed/34847448
http://dx.doi.org/10.1016/j.ultsonch.2021.105842
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author Gao, Jinbiao
Li, Chao
Xu, Delong
Wu, Pengfei
Lin, Weijun
Wang, Xiuming
author_facet Gao, Jinbiao
Li, Chao
Xu, Delong
Wu, Pengfei
Lin, Weijun
Wang, Xiuming
author_sort Gao, Jinbiao
collection PubMed
description Viscosity reduction of heavy oil has economic benefits and applicational value in the field. Applying viscosity reduction technology of heavy oil with ultrasound, this paper examines the influence of ultrasonic irradiation time and the addition of tetralin and ethylene glycol on viscosity reduction of heavy oil. Fourier Transform Infrared Spectrometer (FTIR) and Gas Chromatograph (GC) were used to analyze the chemical compositions and structural changes of oil samples before and after ultrasonic irradiation, and the effects of ultrasound on viscosity changes are presented. The viscosity reduction rate (VRR) was best at an irradiation time of 6 mins under the current experimental conditions, with VRR reaching more than 80%. When the irradiation time reached 12 mins, the viscosity of oil samples increased conversely. Chemical analysis reveals that the light components in the oil samples increased after the ultrasonic irradiation, indicating that the cavitation, thermal, and mechanical effects of ultrasound could play a role in breaking long chains of carbon, thus reducing the viscosity. The increase in viscosity may have been caused by a reassociation between molecules and/or the coking of heavy oil.
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spelling pubmed-86371332021-12-08 The mechanism of ultrasonic irradiation effect on viscosity variations of heavy crude oil Gao, Jinbiao Li, Chao Xu, Delong Wu, Pengfei Lin, Weijun Wang, Xiuming Ultrason Sonochem Short Communication Viscosity reduction of heavy oil has economic benefits and applicational value in the field. Applying viscosity reduction technology of heavy oil with ultrasound, this paper examines the influence of ultrasonic irradiation time and the addition of tetralin and ethylene glycol on viscosity reduction of heavy oil. Fourier Transform Infrared Spectrometer (FTIR) and Gas Chromatograph (GC) were used to analyze the chemical compositions and structural changes of oil samples before and after ultrasonic irradiation, and the effects of ultrasound on viscosity changes are presented. The viscosity reduction rate (VRR) was best at an irradiation time of 6 mins under the current experimental conditions, with VRR reaching more than 80%. When the irradiation time reached 12 mins, the viscosity of oil samples increased conversely. Chemical analysis reveals that the light components in the oil samples increased after the ultrasonic irradiation, indicating that the cavitation, thermal, and mechanical effects of ultrasound could play a role in breaking long chains of carbon, thus reducing the viscosity. The increase in viscosity may have been caused by a reassociation between molecules and/or the coking of heavy oil. Elsevier 2021-11-26 /pmc/articles/PMC8637133/ /pubmed/34847448 http://dx.doi.org/10.1016/j.ultsonch.2021.105842 Text en © 2021 Published by Elsevier B.V. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Short Communication
Gao, Jinbiao
Li, Chao
Xu, Delong
Wu, Pengfei
Lin, Weijun
Wang, Xiuming
The mechanism of ultrasonic irradiation effect on viscosity variations of heavy crude oil
title The mechanism of ultrasonic irradiation effect on viscosity variations of heavy crude oil
title_full The mechanism of ultrasonic irradiation effect on viscosity variations of heavy crude oil
title_fullStr The mechanism of ultrasonic irradiation effect on viscosity variations of heavy crude oil
title_full_unstemmed The mechanism of ultrasonic irradiation effect on viscosity variations of heavy crude oil
title_short The mechanism of ultrasonic irradiation effect on viscosity variations of heavy crude oil
title_sort mechanism of ultrasonic irradiation effect on viscosity variations of heavy crude oil
topic Short Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8637133/
https://www.ncbi.nlm.nih.gov/pubmed/34847448
http://dx.doi.org/10.1016/j.ultsonch.2021.105842
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