An efficient and robust algorithm for the calculation of gas-liquid critical point of multicomponent petroleum fluids

Hussein Hoteit; Erik Santiso; Abbas Firoozabadi

doi:10.1016/j.fluid.2005.12.019

An efficient and robust algorithm for the calculation of gas-liquid critical point of multicomponent petroleum fluids

Hussein Hoteit, Erik Santiso, Abbas Firoozabadi^*

^*Corresponding author for this work

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

25 Scopus citations

Abstract

The calculation of critical points in petroleum fluids and other multicomponent mixtures is important for practical and theoretical reasons. For certain applications, there is a need for the calculation of critical point as many 10⁸ times with the change in composition. There is currently no algorithm that enjoys both robustness and efficiency (that is, speed) to be used for such a purpose. In this work, we propose a simple algorithm that has remarkable efficiency and robustness. It is orders of magnitude faster than the existing algorithms which are known to be robust.

Original language	English (US)
Pages (from-to)	186-195
Number of pages	10
Journal	Fluid Phase Equilibria
Volume	241
Issue number	1-2
DOIs	https://doi.org/10.1016/j.fluid.2005.12.019
State	Published - Mar 15 2006
Externally published	Yes

Keywords

Brent's method in thermodynamics
Critical point calculation
Criticality in mixtures
Multicomponent hydrocarbons
Thermodynamics

ASJC Scopus subject areas

General Chemical Engineering
General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/j.fluid.2005.12.019

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abstract = "The calculation of critical points in petroleum fluids and other multicomponent mixtures is important for practical and theoretical reasons. For certain applications, there is a need for the calculation of critical point as many 108 times with the change in composition. There is currently no algorithm that enjoys both robustness and efficiency (that is, speed) to be used for such a purpose. In this work, we propose a simple algorithm that has remarkable efficiency and robustness. It is orders of magnitude faster than the existing algorithms which are known to be robust.",

keywords = "Brent's method in thermodynamics, Critical point calculation, Criticality in mixtures, Multicomponent hydrocarbons, Thermodynamics",

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AU - Santiso, Erik

AU - Firoozabadi, Abbas

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Y1 - 2006/3/15

N2 - The calculation of critical points in petroleum fluids and other multicomponent mixtures is important for practical and theoretical reasons. For certain applications, there is a need for the calculation of critical point as many 108 times with the change in composition. There is currently no algorithm that enjoys both robustness and efficiency (that is, speed) to be used for such a purpose. In this work, we propose a simple algorithm that has remarkable efficiency and robustness. It is orders of magnitude faster than the existing algorithms which are known to be robust.

AB - The calculation of critical points in petroleum fluids and other multicomponent mixtures is important for practical and theoretical reasons. For certain applications, there is a need for the calculation of critical point as many 108 times with the change in composition. There is currently no algorithm that enjoys both robustness and efficiency (that is, speed) to be used for such a purpose. In this work, we propose a simple algorithm that has remarkable efficiency and robustness. It is orders of magnitude faster than the existing algorithms which are known to be robust.

KW - Brent's method in thermodynamics

KW - Critical point calculation

KW - Criticality in mixtures

KW - Multicomponent hydrocarbons

KW - Thermodynamics

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JO - Fluid Phase Equilibria

JF - Fluid Phase Equilibria

IS - 1-2

ER -

An efficient and robust algorithm for the calculation of gas-liquid critical point of multicomponent petroleum fluids

Abstract

Keywords

ASJC Scopus subject areas

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