A Comparative Performance Evaluation of Cubic Equations of State for Predicting the Compositional Distribution of Hydrate Inhibitors in Reservoir Fluid Systems

Emmanuel I. Epelle; John O. Oyinbo; Jude A. Okolie; Dimitrios I. Gerogiorgis

doi:10.1016/j.fluid.2021.112964

A Comparative Performance Evaluation of Cubic Equations of State for Predicting the Compositional Distribution of Hydrate Inhibitors in Reservoir Fluid Systems

Emmanuel I. Epelle, John O. Oyinbo, Jude A. Okolie, Dimitrios I. Gerogiorgis

School of Engineering

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

This study presents a comparative computational examination of different cubic equations of state (EoS) on hydrate inhibition fluid systems involving real reservoir fluids. Two gas hydrate inhibitors (Monoethylene glycol – MEG and methanol) were considered alongside 4 cubic EoS namely; Cubic-Plus-Association (CPA) EoS coupled with Infochem mixing rules, Soave-Redlich-Kwong (SRK) EoS coupled with the Huron-Vidal (HV) mixing rule, Peng Robinson EoS coupled with the HV mixing rule and the Predictive-Soave-Redlich-Kwong EoS with the PSRK-type mixing rule. Pressure-Temperature (PT) – flash calculations were carried out using MultiflashTM software (version 6.1) and the obtained results were compared with experimental data from various literature. The tested Cubic EoS successfully modelled the distribution of water, a hydrate inhibitor and hydrocarbons in the complex mixtures at different conditions with the CPA performing best. The PSRK EoS produced results farthest from experimental data.

Original language	English
Article number	112964
Journal	Fluid phase equilibria
Early online date	19 Jan 2021
DOIs	https://doi.org/10.1016/j.fluid.2021.112964
Publication status	Published - 1 May 2021

Keywords / Materials (for Non-textual outputs)

Hydrates
Equation of state
Cubic-Plus-Association
Huron-Vidal
Soave-Redlich-Kwong
Peng-Robinson

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10.1016/j.fluid.2021.112964

FPE_DG_12.2020Accepted author manuscript, 1.7 MBLicence: Creative Commons: Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND)

https://linkinghub.elsevier.com/retrieve/pii/S0378381221000261

A Digital Twin via First-Principles Modelling and Data Analytics for Process Optimisation in Pharmaceutical Manufacturing
Gerogiorgis, D.
1/10/20 → 31/01/22
Project: Research

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@article{25dcf21fadff4ea7956c2616777c1e73,

title = "A Comparative Performance Evaluation of Cubic Equations of State for Predicting the Compositional Distribution of Hydrate Inhibitors in Reservoir Fluid Systems",

abstract = "This study presents a comparative computational examination of different cubic equations of state (EoS) on hydrate inhibition fluid systems involving real reservoir fluids. Two gas hydrate inhibitors (Monoethylene glycol – MEG and methanol) were considered alongside 4 cubic EoS namely; Cubic-Plus-Association (CPA) EoS coupled with Infochem mixing rules, Soave-Redlich-Kwong (SRK) EoS coupled with the Huron-Vidal (HV) mixing rule, Peng Robinson EoS coupled with the HV mixing rule and the Predictive-Soave-Redlich-Kwong EoS with the PSRK-type mixing rule. Pressure-Temperature (PT) – flash calculations were carried out using MultiflashTM software (version 6.1) and the obtained results were compared with experimental data from various literature. The tested Cubic EoS successfully modelled the distribution of water, a hydrate inhibitor and hydrocarbons in the complex mixtures at different conditions with the CPA performing best. The PSRK EoS produced results farthest from experimental data.",

keywords = "Hydrates, Equation of state, Cubic-Plus-Association, Huron-Vidal, Soave-Redlich-Kwong, Peng-Robinson",

author = "Epelle, {Emmanuel I.} and Oyinbo, {John O.} and Okolie, {Jude A.} and Gerogiorgis, {Dimitrios I.}",

year = "2021",

month = may,

day = "1",

doi = "10.1016/j.fluid.2021.112964",

language = "English",

journal = "Fluid phase equilibria",

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AU - Epelle, Emmanuel I.

AU - Oyinbo, John O.

AU - Okolie, Jude A.

AU - Gerogiorgis, Dimitrios I.

PY - 2021/5/1

Y1 - 2021/5/1

N2 - This study presents a comparative computational examination of different cubic equations of state (EoS) on hydrate inhibition fluid systems involving real reservoir fluids. Two gas hydrate inhibitors (Monoethylene glycol – MEG and methanol) were considered alongside 4 cubic EoS namely; Cubic-Plus-Association (CPA) EoS coupled with Infochem mixing rules, Soave-Redlich-Kwong (SRK) EoS coupled with the Huron-Vidal (HV) mixing rule, Peng Robinson EoS coupled with the HV mixing rule and the Predictive-Soave-Redlich-Kwong EoS with the PSRK-type mixing rule. Pressure-Temperature (PT) – flash calculations were carried out using MultiflashTM software (version 6.1) and the obtained results were compared with experimental data from various literature. The tested Cubic EoS successfully modelled the distribution of water, a hydrate inhibitor and hydrocarbons in the complex mixtures at different conditions with the CPA performing best. The PSRK EoS produced results farthest from experimental data.

AB - This study presents a comparative computational examination of different cubic equations of state (EoS) on hydrate inhibition fluid systems involving real reservoir fluids. Two gas hydrate inhibitors (Monoethylene glycol – MEG and methanol) were considered alongside 4 cubic EoS namely; Cubic-Plus-Association (CPA) EoS coupled with Infochem mixing rules, Soave-Redlich-Kwong (SRK) EoS coupled with the Huron-Vidal (HV) mixing rule, Peng Robinson EoS coupled with the HV mixing rule and the Predictive-Soave-Redlich-Kwong EoS with the PSRK-type mixing rule. Pressure-Temperature (PT) – flash calculations were carried out using MultiflashTM software (version 6.1) and the obtained results were compared with experimental data from various literature. The tested Cubic EoS successfully modelled the distribution of water, a hydrate inhibitor and hydrocarbons in the complex mixtures at different conditions with the CPA performing best. The PSRK EoS produced results farthest from experimental data.

KW - Hydrates

KW - Equation of state

KW - Cubic-Plus-Association

KW - Huron-Vidal

KW - Soave-Redlich-Kwong

KW - Peng-Robinson

U2 - 10.1016/j.fluid.2021.112964

DO - 10.1016/j.fluid.2021.112964

M3 - Article

SN - 0378-3812

JO - Fluid phase equilibria

JF - Fluid phase equilibria

M1 - 112964

ER -

A Comparative Performance Evaluation of Cubic Equations of State for Predicting the Compositional Distribution of Hydrate Inhibitors in Reservoir Fluid Systems

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Keywords / Materials (for Non-textual outputs)

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A Digital Twin via First-Principles Modelling and Data Analytics for Process Optimisation in Pharmaceutical Manufacturing

Cite this