EQUILIBRIA OF 1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE ON ACTIVATED CARBONS

ChloroFluoroCarbons (CFCs) are now considered to be the prime contribu tion to stratospheric ozone depletion. As a result, the use of activat ed carbons to adsorb specific CFCs has received great attention. In th is paper, the equilibrium adsorption characteristics of 1,1,2-trichlor o-1,2,2-trifluoroethane vapor on different-shaped carbons were studied . Adsorption isotherms of 1,1,2-trichloro-1,2,2-trifluoroethane on an activated carbon pellet and an activated carbon felt were measured The equilibria of 1,1,2-trichloro-1,2,2-trifluoroethane on the activated carbon pellet having a dual pore structure were expressed by the Redli ch-Peterson equation, and equilibrium constants were expressed as func tions of temperature from 298 to 393 K. On the other hand, the equilib ria of 1,1,2-trichloro-1,2,2-trifluoroethane on the activated carbon f elt having a relatively uniform pore structure were interpreted by the Dubinin-Radushkevich correlation based on the micropore volume fillin g theory. The affinity coefficient was correlated by the molar polariz ation.