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 journalArticlepeer-review

20 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 languageEnglish (US)
Pages (from-to)186-195
Number of pages10
JournalFluid Phase Equilibria
Volume241
Issue number1-2
DOIs
StatePublished - Mar 15 2006

Keywords

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

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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