Adsorption equilibria of chloropentafluoroethane and pentafluoroethane on activated carbon pellet

Abstract

Equilibrium studies on the adsorption of chloropentafluoroethane (R-115, CF3CF2Cl) and pentafluoroethane (CF3CF2H, R-125) on an activated carbon pellet were made between 298.2 K and 373.6 K. Equilibrium parameters based on the Langmuir-Freundlich equation are derived. The Langmuir-Freundlich isotherms for R-115 and R-125 fit the experimental results within 2%. The isosteric enthalpies of adsorption of R-115 and R-125 were estimated.