Absorbed solution theory models for multicomponent adsorption equilibria
โ Scribed by Giuseppe Gamba; Renato Rota; Giuseppe Storti; Sergio Carra; Massimo Morbidelli
- Publisher
- American Institute of Chemical Engineers
- Year
- 1989
- Tongue
- English
- Weight
- 701 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0001-1541
No coin nor oath required. For personal study only.
โฆ Synopsis
A new approach is developed for applying ideal and real adsorbed solution theory models to the description of multicomponent adsorption equilibria at fixed pressure. This allows ignoring single-component behavior in the Henry's law region, P -0, but introduces new parameters that must be evaluated from binary equilibrium data. Comparisons with various sets of experimental data show that the new approach gives results as good as the classical one, but without requiring knowledge of the single component behavior in the Henry's law region; moreover, it removes the sensitivity to the type of model adopted in fittingsingle-component equilibrium data.
๐ SIMILAR VOLUMES
Precise multicomponent isotherms are usually required to properly analyze the dynamic behavior of adsorption separation processes (for example, Frey, 1992). Among the most accurate and versatile isotherms for this purpose are those resulting from ideal adsorbed solution (IAS) theory (Myers and Praus
A simple lattice-fluid model is presented for solute adsorption from a bulk liquid onto a solid surface in the presence of an additional thin (liquid) surface coating. In this model, solutes first absorb in this intermediate surface film before they adsorb at the solid surface. This coupling of adso