Phase Equilibria - ChE Links
Software package by John Carroll for predicting fluid phase equilibria in natural
gas-water systems; runs under DOS. Site also includes some excellent tutorials on phase
equilibrium calculations and an introduction to gas hydrates.
Free version of ChemApp, programmer's library with subroutines for the calculation of
multicomponent, multiphase chemical equilibria and the associated energy balances. Many
versions for various compilers on DOS, Windows, Unix, and Macintosh platforms.
Free Lite version of a program that solves equilibrium problems from a wide range of
fields using the unified theoretical approach and algorithms of Smith and Missen. For MS
Fluid Phase Equilibria
From Quest Consultants, online calculator for the vapor pressure curve of a pure component
or the pressure-temperature phase envelope of a mixture, uses the Peng-Robinson equation
A mini-tutorial by W. R. Smith that discusses the calculation of dew-point temperatures
and pressures in gas-vapor systems.
List of data for more than 500 species in water. Available in postscript format,
subdivided into small files, or as a plain ASCII text file.
MINEQL+, A Chemical Equilibrium Modeling System
Software for the calculation of chemical equilibria. Includes graphical display of output,
calculation of acid/base, redox and precipitation reactions, surface adsorption
calculations, synthetic titrations.
Commercial software from Infochem for multiphase equilibrium calculations using equation
of state, activity coefficient and transport property models. Available as an interactive
Windows program and as a DLL for linking to other Windows software.
Introduction to solid-fluid equilibria (SFE) and phase diagrams, includes a Java applet
illustrating ternary SFE phase diagrams.
From William D. Kovats, Windows 9x/NT program for vapor-liquid equilibrium calculation and
batch distillation simulation using UNIFAC and NRTL, free for non-commercial and
educational use, requires MS Excel 97 and Visual Basic 4 Runtime Library, 1.67 MB.
By: Dr. Bernhard Spang, Associate Content Writer (read the author's Profile)