title: Methods for Estimating the Parameters of Nonlinear Adsorption Isotherms of Langmuir and Freundlich Types from a Response Curve of Pulse Input of an Adsorbate.
abstract: Methods for estimating the parameters of nonlinear adsorption isotherms of Langmuir and Freundlich types from a pulse response curve are proposed here based on the migration rate of an adsorbate at a constant concentration and the mean residence time of the adsorbate in a bed. The methods were used to estimate the parameters in isotherms for various combinations of adsorbent and adsorbate. The isotherms estimated by the proposed methods were compared with those estimated by conventional methods. It was demonstrated that the proposed methods could evaluate the parameters with fairly good precision when the type of isotherm was known. The criteria for discriminating the type of isotherm from the pulse response curve are also described.
authors.affiliation: a Department of Food Science and Technology, Faculty of Agriculture , Kyoto University , Sakyo-ku, Kyoto 606-01 , Japan.
authors.forename: S
authors.initials: S
authors.lastname: Adachi
authors.affiliation: a Department of Food Science and Technology, Faculty of Agriculture , Kyoto University , Sakyo-ku, Kyoto 606-01 , Japan.
authors.forename: C
authors.initials: C
authors.lastname: Panintrarux
authors.affiliation: a Department of Food Science and Technology, Faculty of Agriculture , Kyoto University , Sakyo-ku, Kyoto 606-01 , Japan.
authors.forename: R
authors.initials: R
authors.lastname: Matsuno
keywords: Freundlich isotherm; Langmuir isotherm; adsorption isotherm; pulse response technique