Coadsorption of organic compounds and water vapor on BPL activated carbon: 2. 1,1,2-trichloro-1,2,2-trifluoroethane and dichloromethane

Journal Article · Mon Nov 01 00:00:00 EST 1993 · Industrial and Engineering Chemistry Research; (United States)

DOI:https://doi.org/10.1021/ie00023a043· OSTI ID:5510224

Eissmann, R N; LeVan, M D ^[1]

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1. Univ. of Virginia, Charlottesville, VA (United States). Dept. of Chemical Engineering

A novel volumetric apparatus is used to measure equilibria for mixed vapors of halocarbons and water coadsorbed on BPL activated carbon. Pure-component 1,1,2-trichloro-1,2,2-trifluoroethane (CFC 113) and dichloromethane (methylene chloride) isotherms are obtained at 0, 25, 50, 75, and 100 C over wide ranges of pressure. A separate isotherm measured for CFC-113 at 50 C indicates the presence of pure component hysteresis in the mesopore structure of the activated carbon at high halocarbon loadings. Mixture equilibria are measured for CFC-113/water systems at 25 and 100 C and for dichloromethane/water systems at 25 C. All components exhibit hysteresis, and the halocarbon partial pressure increases as the water loading is increased at constant halocarbon loading. Results for halocarbon/water mixtures together with previous results for hydrocarbon/water mixtures show that the apparent total pore volume filled near saturation is dependent on the adsorption temperature and the solubility of the organic compound in water.

• OSTI ID: 5510224
• Journal Information: Industrial and Engineering Chemistry Research; (United States), Vol. 32:11; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ACTIVATED CARBON
SORPTIVE PROPERTIES
HALOGENATED ALIPHATIC HYDROCARBONS
ADSORPTION
WATER VAPOR
CHLOROFLUOROCARBONS
HYSTERESIS
ISOTHERMS
METHYLENE CHLORIDE
PARTIAL PRESSURE
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0273-0400 K
ADSORBENTS
CARBON
ELEMENTS
FLUIDS
GASES
NONMETALS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
SORPTION
SURFACE PROPERTIES
TEMPERATURE RANGE
VAPORS
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)