Abstract
A numerical scheme has been developed for calculation of multiphase equilibria. The scheme is applied to a thermodynamic model that employs a modified version of the Peng-Robinson equation for all phases except possibly an aqueous phase. Henry's constants are used for computation of solute fugacities in the water phase. The numerical scheme makes ″optimal″ use of first- and second-order iterative schemes and circumvents the problems reported by previous investigators. An outline of the scheme is presented with references to other sources where complete details are available. Examples of two-, three-, and four-phase separations are presented to demonstrate the range of the proposed scheme.
Original language | English |
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Pages (from-to) | 61-68 |
Number of pages | 8 |
Journal | Society of Petroleum Engineers journal |
Volume | 22 |
Issue number | 1 |
DOIs | |
State | Published - 1982 |
ASJC Scopus subject areas
- General Engineering