Revisiting Kelvin equation and Peng–Robinson equation of state for accurate modeling of hydrocarbon phase behavior in nano capillaries

Abstract The thermodynamics of fluids in confined (capillary) media is different from the bulk conditions due to the effects of the surface tension, wettability, and pore radius as described by the classical Kelvin equation. This study provides experimental data showing the deviation of propane vapo...

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Autores principales: Ilyas Al-Kindi, Tayfun Babadagli
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Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/3c3f79f2365947eb9a3bd1dcbb046464
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spelling oai:doaj.org-article:3c3f79f2365947eb9a3bd1dcbb0464642021-12-02T17:04:35ZRevisiting Kelvin equation and Peng–Robinson equation of state for accurate modeling of hydrocarbon phase behavior in nano capillaries10.1038/s41598-021-86075-82045-2322https://doaj.org/article/3c3f79f2365947eb9a3bd1dcbb0464642021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86075-8https://doaj.org/toc/2045-2322Abstract The thermodynamics of fluids in confined (capillary) media is different from the bulk conditions due to the effects of the surface tension, wettability, and pore radius as described by the classical Kelvin equation. This study provides experimental data showing the deviation of propane vapour pressures in capillary media from the bulk conditions. Comparisons were also made with the vapour pressures calculated by the Peng–Robinson equation-of-state (PR-EOS). While the propane vapour pressures measured using synthetic capillary medium models (Hele–Shaw cells and microfluidic chips) were comparable with those measured at bulk conditions, the measured vapour pressures in the rock samples (sandstone, limestone, tight sandstone, and shale) were 15% (on average) less than those modelled by PR-EOS.Ilyas Al-KindiTayfun BabadagliNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Ilyas Al-Kindi
Tayfun Babadagli
Revisiting Kelvin equation and Peng–Robinson equation of state for accurate modeling of hydrocarbon phase behavior in nano capillaries
description Abstract The thermodynamics of fluids in confined (capillary) media is different from the bulk conditions due to the effects of the surface tension, wettability, and pore radius as described by the classical Kelvin equation. This study provides experimental data showing the deviation of propane vapour pressures in capillary media from the bulk conditions. Comparisons were also made with the vapour pressures calculated by the Peng–Robinson equation-of-state (PR-EOS). While the propane vapour pressures measured using synthetic capillary medium models (Hele–Shaw cells and microfluidic chips) were comparable with those measured at bulk conditions, the measured vapour pressures in the rock samples (sandstone, limestone, tight sandstone, and shale) were 15% (on average) less than those modelled by PR-EOS.
format article
author Ilyas Al-Kindi
Tayfun Babadagli
author_facet Ilyas Al-Kindi
Tayfun Babadagli
author_sort Ilyas Al-Kindi
title Revisiting Kelvin equation and Peng–Robinson equation of state for accurate modeling of hydrocarbon phase behavior in nano capillaries
title_short Revisiting Kelvin equation and Peng–Robinson equation of state for accurate modeling of hydrocarbon phase behavior in nano capillaries
title_full Revisiting Kelvin equation and Peng–Robinson equation of state for accurate modeling of hydrocarbon phase behavior in nano capillaries
title_fullStr Revisiting Kelvin equation and Peng–Robinson equation of state for accurate modeling of hydrocarbon phase behavior in nano capillaries
title_full_unstemmed Revisiting Kelvin equation and Peng–Robinson equation of state for accurate modeling of hydrocarbon phase behavior in nano capillaries
title_sort revisiting kelvin equation and peng–robinson equation of state for accurate modeling of hydrocarbon phase behavior in nano capillaries
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/3c3f79f2365947eb9a3bd1dcbb046464
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AT tayfunbabadagli revisitingkelvinequationandpengrobinsonequationofstateforaccuratemodelingofhydrocarbonphasebehaviorinnanocapillaries
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