New insight into prediction of phase behavior of natural gas hydrate by different cubic equations of state coupled with various mixing rules

Abstract Progress in hydrate thermodynamic study necessitates robust and fast models to be incorporated in reservoir simulation softwares. However, numerous models presented in the literature makes selection of the best, proper predictive model a cumbersome task. It is of industrial interest to make...

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Autor principal:	Amir Hossein Saeedi Dehaghani
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2017
Materias:	Gas Hydrate Cubic equation of state Mixing rule Thermodynamic modeling Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/36bbc7a201c4465da48a6883d086238a
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spelling	oai:doaj.org-article:36bbc7a201c4465da48a6883d086238a2021-12-02T07:31:53ZNew insight into prediction of phase behavior of natural gas hydrate by different cubic equations of state coupled with various mixing rules10.1007/s12182-017-0190-11672-51071995-8226https://doaj.org/article/36bbc7a201c4465da48a6883d086238a2017-11-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-017-0190-1https://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract Progress in hydrate thermodynamic study necessitates robust and fast models to be incorporated in reservoir simulation softwares. However, numerous models presented in the literature makes selection of the best, proper predictive model a cumbersome task. It is of industrial interest to make use of cubic equations of state (EOS) for modeling hydrate equilibria. In this regard, this study focuses on evaluation of three common EOSs including Peng–Robinson, Soave–Redlich–Kwong and Valderrama–Patel–Teja coupled with van der Waals and Platteeuw theory to predict hydrate P–T equilibrium of a real natural gas sample. Each EOS was accompanied with three mixing rules, including van der Waals (vdW), Avlonitis non-density dependent (ANDD) and general non-quadratic (GNQ). The prediction of cubic EOSs was in sufficient agreement with experimental data and with overall AARD% of less than unity. In addition, PR plus ANDD proved to be the most accurate model in this study for prediction of hydrate equilibria with AARD% of 0.166. It was observed that the accuracy of cubic EOSs studied in this paper depends on mixing rule coupled with them, especially at high-pressure conditions. Lastly, the present study does not include any adjustable parameter to be correlated with hydrate phase equilibrium data.Amir Hossein Saeedi DehaghaniKeAi Communications Co., Ltd.articleGas HydrateCubic equation of stateMixing ruleThermodynamic modelingScienceQPetrologyQE420-499ENPetroleum Science, Vol 14, Iss 4, Pp 780-790 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Gas Hydrate Cubic equation of state Mixing rule Thermodynamic modeling Science Q Petrology QE420-499
spellingShingle	Gas Hydrate Cubic equation of state Mixing rule Thermodynamic modeling Science Q Petrology QE420-499 Amir Hossein Saeedi Dehaghani New insight into prediction of phase behavior of natural gas hydrate by different cubic equations of state coupled with various mixing rules
description	Abstract Progress in hydrate thermodynamic study necessitates robust and fast models to be incorporated in reservoir simulation softwares. However, numerous models presented in the literature makes selection of the best, proper predictive model a cumbersome task. It is of industrial interest to make use of cubic equations of state (EOS) for modeling hydrate equilibria. In this regard, this study focuses on evaluation of three common EOSs including Peng–Robinson, Soave–Redlich–Kwong and Valderrama–Patel–Teja coupled with van der Waals and Platteeuw theory to predict hydrate P–T equilibrium of a real natural gas sample. Each EOS was accompanied with three mixing rules, including van der Waals (vdW), Avlonitis non-density dependent (ANDD) and general non-quadratic (GNQ). The prediction of cubic EOSs was in sufficient agreement with experimental data and with overall AARD% of less than unity. In addition, PR plus ANDD proved to be the most accurate model in this study for prediction of hydrate equilibria with AARD% of 0.166. It was observed that the accuracy of cubic EOSs studied in this paper depends on mixing rule coupled with them, especially at high-pressure conditions. Lastly, the present study does not include any adjustable parameter to be correlated with hydrate phase equilibrium data.
format	article
author	Amir Hossein Saeedi Dehaghani
author_facet	Amir Hossein Saeedi Dehaghani
author_sort	Amir Hossein Saeedi Dehaghani
title	New insight into prediction of phase behavior of natural gas hydrate by different cubic equations of state coupled with various mixing rules
title_short	New insight into prediction of phase behavior of natural gas hydrate by different cubic equations of state coupled with various mixing rules
title_full	New insight into prediction of phase behavior of natural gas hydrate by different cubic equations of state coupled with various mixing rules
title_fullStr	New insight into prediction of phase behavior of natural gas hydrate by different cubic equations of state coupled with various mixing rules
title_full_unstemmed	New insight into prediction of phase behavior of natural gas hydrate by different cubic equations of state coupled with various mixing rules
title_sort	new insight into prediction of phase behavior of natural gas hydrate by different cubic equations of state coupled with various mixing rules
publisher	KeAi Communications Co., Ltd.
publishDate	2017
url	https://doaj.org/article/36bbc7a201c4465da48a6883d086238a
work_keys_str_mv	AT amirhosseinsaeedidehaghani newinsightintopredictionofphasebehaviorofnaturalgashydratebydifferentcubicequationsofstatecoupledwithvariousmixingrules
_version_	1718399393372045312

New insight into prediction of phase behavior of natural gas hydrate by different cubic equations of state coupled with various mixing rules

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