Adsorption of organic substances with different physicochemical properties 2. The heats of adsorption of freon 13B1 on active carbons
Toxic organic compounds which cause danger to the ozone layer must be removed from air. Adsorption processes are finding increasingly wide use. The linear regions of the adsorption isotherms of freon 13B1 (CF{sub 3}Br) on active carbons with different porous structures were studied by gas chromatography at 343-573 K. The Henry`s constants were determined, and the isosteric heats of adsorption (Q) were calculated in the region of zero filling. It was established that the Q values for active carbons with different pore size distributions are almost the same and vary within 38-41 kJ mol{sup -1}. This coincidence can be explained assuming that the interaction between the adsorbed molecules and the active carbons occurs in the pores whose sizes are comparable with those of the adsorbed molecules.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 121287
- Journal Information:
- Russian Chemical Bulletin, Vol. 44, Issue 3; Other Information: PBD: Mar 1995; TN: Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya; No. 3, 439-441(Mar 1995)
- Country of Publication:
- United States
- Language:
- English
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