Adsorption of organic solvent vapors on hydrophobic Y-type zeolite

Journal Article · Mon Jun 01 04:00:00 EDT 1998 · AIChE Journal

DOI:https://doi.org/10.1002/aic.690440612· OSTI ID:653303

Yun, J H; Choi, D K ^[1]; Kim, S H ^[2]

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1. Korea Inst. of Science and Technology, Seoul (Korea, Republic of). Div. of Environmental and CFC Technology
2. Korea Univ., Seoul (Korea, Republic of). Dept. of Chemical Engineering

Experimental isotherms and prediction results for adsorption of benzene, toluene, dichloromethane and 1,1-dichloro-1-fluoroethane on hydrophobic Y-type zeolite are reported. Isotherm shows the type-V shape according to the classification by Brunauer et al. A simple thermodynamic method is employed to predict the experimental equilibrium data at various temperatures simultaneously. This plain method is based on the assumption that the value of the isosteric heat of adsorption does not depend on temperature for a certain surface loading. The Clausius-Clapeyron equation was used to calculate the isosteric heat of adsorption. To apply the method, only two sets of the experimental isotherm data at two different temperatures are needed. The Clausius-Clapeyron equation with two isotherms provided simple and reliable prediction of adsorption equilibrium relationships at various temperatures. Results with this method showed that the predicted value agrees well with the experimental data in the range of temperatures for the system tested.

• OSTI ID: 653303
• Journal Information: AIChE Journal, Journal Name: AIChE Journal Journal Issue: 6 Vol. 44; ISSN 0001-1541; ISSN AICEAC
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ADSORPTION HEAT
ADSORPTION ISOTHERMS
AIR POLLUTION CONTROL
BENZENE
CHLORINATED ALIPHATIC HYDROCARBONS
CHLOROFLUOROCARBONS
MATHEMATICAL MODELS
TOLUENE
ZEOLITES