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
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
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
work_keys_str_mv	AT ilyasalkindi revisitingkelvinequationandpengrobinsonequationofstateforaccuratemodelingofhydrocarbonphasebehaviorinnanocapillaries AT tayfunbabadagli revisitingkelvinequationandpengrobinsonequationofstateforaccuratemodelingofhydrocarbonphasebehaviorinnanocapillaries
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Revisiting Kelvin equation and Peng–Robinson equation of state for accurate modeling of hydrocarbon phase behavior in nano capillaries

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