Correlation of Methyl Chloride, Methylene Chloride, Chloroform, and Carbon Tetrachloride Adsorption Data on Silica Gel

Derivation and Application of a Jovanovic–Freundlich Isotherm Model for Single-Component Adsorption on Heterogeneous Surfaces

“…It seems that the ori-onstrate the suitability of the Jovanovic-Freundlich isotherm model to correlate the adsorption data studied here. gin of the isotherm was not included in the initial regression of the data (8,9). If we include this point in the data set, The Tóth, UNILAN, and Hines models reduce to the Henry law at low pressures, whereas the Jovanovic-Freund-however, our estimates of the parameters of the Hines isotherm model differ from those reported initially (8,9).…”

“…[30] The nonlinear regression analysis of the models was car-9 CHCl 3 298 11 (8) ried out using a fitting procedure based on Marquardt algo-10 CCl 4 288 12 (8) rithm (34), which minimizes the residual sum of the squares 11 CCl 4 293 12 (8) of the differences between the experimental data and the …”

“…This equation allows to show its potential usefulness were reported by Hines et the comparison of models having different numbers of al. (8,9). 2 These data regard the adsorption of several chloriparameters ( 35 ) .…”

“…These ered as heterogeneous because the heat of adsorption tends tables report the parameter estimates, their confidence interto decrease with increasing concentration of the compounds vals, and the Fisher values for each set of experimental data. (8,9). These experimental data were fitted to the Tóth (5),…”

“…Although, the monolayer, single-component adsorption on heterogein principle, the competitive isotherms of all the feed comneous surfaces. We use this model to account for experimental adsorption data published recently, regarding chlorinated hydrocarbons on silica gel, at different temperatures (8,9), …”