Equivalent models of indanol isomers adsorption on cellulose tribenzoate

摘要

The adsorption isothemr date of (R)-and (S)-1-indanol and of their racemic mixture on cellulose tribenzoate were measured by frontal analysis The experiment al data fro each enantiomers were fitted to the single-component bilangmuir isotherm model.The competitive experimental date wer fitted to the single-component bilangmuir isotherm model.The competitive experimental data were fitted to the ideal adsorption solution model (LAS) the real adsorption solution model (RAS) and the bilangmuir thermodynamically consistent model (BTC) The mass transfer kinetic parameters were estimated from systematic comparisons between the experimental single-component band profiles and profiles calculated using the general rate model (GR) of chromatography coupled with the generalized Maxwell-Stefan equation(GMS).The validation of the isothem model and of the mass transfer kinetic model was made by comparing the experimental band profiles obtained from solutions of the two enantiomers and those calculated with the competitive GR-GMS model.The excellent agreement observed proves that a combina-tion of the BTC isotherm model and the CMS kinetic model,usig the best values fo the BTC and GMS parameters estimated from single component exsperiments,allows an excellent prediction of the binary isotherm and the binary mass transfer kinetics.