LANGMUIR PARAMETERS FOR ADSORPTION OF TWO HALOGENATED CHEMICALS ON AN ACTIVATED CARBON PELLET

Cho SY; Choi DK

Korean Journal of Chemical Engineering, Vol.13, No.4, 409-411, July, 1996

1,1,2,-trichloro-2,2,1-trifluoroethane is considered to be the prime contributor to stratospheric ozone depletion. Besides, dischloromethane is toxic. As a result, the use of activated carbon to adsorb these chemicals has been received a great attention. In this study, adsorption isotherms of 1,1,2-trichloro-2,2,1-trifluoroethane and dichloromethane on an activated carbon pellet were measured. The equilibria of these chemicals on activated carbon pellet were well expressed by Langmuir equation, and the equilibrium constants were expressed as function of temperature between 298 K and 393 K. Isosteric heats of adsorption were also evaluated from the experimental data.

Keywords:Halogenated Chemicals;Adsorption;Langmuir Parameters

[References]

Allen R, "Chemical Safety Data Sheet-Volume 1," the Royal Society of Chemistry, Cambridge, UK (1989)
Andersen SO, "Alternatives for CFC-113 and Methyl Chloro form in Metal Cleaning," EPA Report no. 400/1-91/019, June (1991)
Benning AF, McHarness RC, "Thermodynamic Properties of Trichlorotrifluoroethane," Technical Report of E.I. du Pont de Nemours and Company (1934)
Cho SY, Carbon, 32(8), 1542 (1994)
Cicerone RJ, Strolarski RS, Walter S, Science, 185(4157), 1165 (1974)
Kodama K, Kaguei S, Wakao N, Can. J. Chem. Eng., 70, 244 (1992)
Kuo SL, Hines AL, Sep. Sci. Technol., 23, 293 (1988)
Molina MJ, Rowland FS, Nature, 249(5460), 810 (1974)
Tsai WT, Chang CY, J. Chem. Technol. Biotechnol., 61(2), 145 (1994)
Wolf K, Yazdani A, Yates P, J. Air Waste Manage. Assoc., 41, 1055 (1991)

[Referenced By]

[1] Allen R, "Chemical Safety Data Sheet-Volume 1," the Royal Society of Chemistry, Cambridge, UK (1989)

[2] Andersen SO, "Alternatives for CFC-113 and Methyl Chloro form in Metal Cleaning," EPA Report no. 400/1-91/019, June (1991)

[3] Benning AF, McHarness RC, "Thermodynamic Properties of Trichlorotrifluoroethane," Technical Report of E.I. du Pont de Nemours and Company (1934)

[4] Cho SY, Carbon, 32(8), 1542 (1994)

[5] Cicerone RJ, Strolarski RS, Walter S, Science, 185(4157), 1165 (1974)

[6] Kodama K, Kaguei S, Wakao N, Can. J. Chem. Eng., 70, 244 (1992)

[7] Kuo SL, Hines AL, Sep. Sci. Technol., 23, 293 (1988)

[8] Molina MJ, Rowland FS, Nature, 249(5460), 810 (1974)

[9] Tsai WT, Chang CY, J. Chem. Technol. Biotechnol., 61(2), 145 (1994)

[10] Wolf K, Yazdani A, Yates P, J. Air Waste Manage. Assoc., 41, 1055 (1991)