Ind. Eng. Chem. Res. 1995,34, 4063-4070
4063
Sulfur Dioxide Sorption Properties and Thermal Stability of Hydrophobic Zeolites S . G. Deng and Y. S . Lin* Department of Chemical Engineering, University of Cincinnati, Cincinnati, Ohio 45221 -0171
Adsorption isotherms of SO2 in air on hydrophobic dealuminated Y (DAY) zeolite and silicalite at SO2 partial pressures ranging from 0.5 to 5 kPa were measured by the gravimetric method. The SO2 sorption isotherms on these two zeolites at different temperatures (25-100 "C) can be correlated by the Langmuir equation a t low SO2 pressures (
