Journal of Hazardous Materials, Vol.324, 645-652, 2017
Thermodynamic features of dioxins' adsorption
In this paper, the six more poisonous species among all congeners of dioxin group are taken into account, and the P-T diagram for each of them is developed. Starting from the knowledge of vapour tensions and thermodynamic parameters, the theoretical adsorption isotherms are calculated according to the Langmuir's model. In particular, the Langmuir isotherm parameters (K and W-max) have been validated through the estimation of the adsorption heat (Delta H-ads), which varies in the range 20-24 kJ/mol, in agreement with literature values. This result will allow to put the thermodynamical basis for a rational design of different process units devoted to dioxins removal. (C) 2016 Elsevier B.V. All rights reserved.