Premium
Vapor‐liquid equilibria from perturbation gas chromatography. Part I: Multicomponent parameter estimation
Author(s) -
Ruff W. A.,
Glover C. J.,
Watson A. T.
Publication year - 1986
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690321203
Subject(s) - extrapolation , elution , perturbation (astronomy) , estimation theory , nonlinear system , chemistry , gas chromatography , chromatography , thermodynamics , sorption isotherm , adsorption , mathematics , algorithm , statistics , physics , quantum mechanics
Abstract Elution times determined from perturbation chromatography experiments are functions of all sorbing species isotherms through the concentration partial derivatives. Measurements at a sufficient number of appropriate compositions along with isotherm models and adjustable parameters allow reduction of the retention time data to VLE by a nonlinear parameter estimation procedure described in this paper. The method can be implemented for both empirical isotherm models, which can be used to minimize model deficiencies, and for theoretical thermodynamic models, which have extrapolation potential and may require fewer parameters.