Adsorption equilibria of chloropentafluoroethane and pentafluoroethane on activated carbon pellet
- Korea Inst. of Science and Technology, Seoul (Korea, Republic of). CFC Alternatives Research Center
- Korea Univ., Seoul (Korea, Republic of). Dept. of Chemical Engineering
Chlorofluorocarbons (CFCs) have been widely used as refrigerants, blowing agents, propellants, and cleaning agents. However, their roles in the ozone depletion are of great global concern. In addition, CFCs also contribute to the greenhouse effect and hence to climate change. Therefore, the Montreal Protocol was formulated to restrict the release of CFCs into the atmosphere. This leads to research for ways to recover the halogenated hydrocarbons. Equilibrium studies on the adsorption of chloropentafluoroethane (R-115, CF{sub 3}CF{sub 2}Cl) and pentafluoroethane (CF{sub 3}CF{sub 2}H, 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.
- OSTI ID:
- 659145
- Journal Information:
- Journal of Chemical and Engineering Data, Vol. 43, Issue 5; Other Information: PBD: Sep-Oct 1998
- Country of Publication:
- United States
- Language:
- English
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