Adsorption of organic solvent vapors on hydrophobic Y-type zeolite

✍ Scribed by Jeong-Ho Yun; Dae-Ki Choi; Sung-Hyun Kim

• Publisher: American Institute of Chemical Engineers
• Year: 1998
• Tongue: English
• Weight: 603 KB
• Volume: 44
• Category: Article
• ISSN: 0001-1541
• DOI: 10.1002/aic.690440612

✦ Synopsis

Experimental isotherms and prediction results for adsorption of benzene, toluene, dichloromethane and 1, 1 -dichloro-1 -jluoroethane on hydrophobic Y-type zeolite are reported. Isotherm shows the type-V shape according to the classifcation 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 su$ace 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 -Clapqron equation with two isotherms provided simple and reliable prediction of adsorption equilibrium relationships at various temperatures. Our results with this method showed that the predicted value agrees well with the experimental data in the range of temperatures for the system tested. *From manufacturer's report. **From BET experiment by ASAP-2000.