TY - JOUR
T1 - Determination of gas phase adsorption isotherms-a simple constant volume method
AU - Kim, Daekeun
AU - Cai, Zhangli
AU - Sorial, George A.
PY - 2006/8
Y1 - 2006/8
N2 - Single and ternary solute gas phase adsorption isotherms were conducted in this study to evaluate the effectiveness of a simple constant volume method, which was utilized by using Tedlar gas sampling bags as a constant volume batch reactor. For this purpose, gas phase adsorption of toluene, methyl ethyl ketone (MEK), and methyl isobutyl ketone (MIBK) on two types of activated carbons, BPL-bituminous base and OVC-coconut base, were investigated. For the single solute adsorption, the experimental adsorption data were found to be well correlated with Freundlich and Myers adsorption equations. The pore size distribution of adsorbents was found to affect their adsorption capacities; its effect was dependant on the solute concentration. The ternary adsorption experimental isotherms were accurately predicted by using the well-known model, i.e., ideal adsorbed solution theory (IAST).
AB - Single and ternary solute gas phase adsorption isotherms were conducted in this study to evaluate the effectiveness of a simple constant volume method, which was utilized by using Tedlar gas sampling bags as a constant volume batch reactor. For this purpose, gas phase adsorption of toluene, methyl ethyl ketone (MEK), and methyl isobutyl ketone (MIBK) on two types of activated carbons, BPL-bituminous base and OVC-coconut base, were investigated. For the single solute adsorption, the experimental adsorption data were found to be well correlated with Freundlich and Myers adsorption equations. The pore size distribution of adsorbents was found to affect their adsorption capacities; its effect was dependant on the solute concentration. The ternary adsorption experimental isotherms were accurately predicted by using the well-known model, i.e., ideal adsorbed solution theory (IAST).
KW - Constant volume
KW - Gas adsorption isotherm
KW - Granular activated carbon
KW - Ideal adsorbed solution theory (IAST)
KW - Pore size distribution
KW - Volatile organic compounds
UR - http://www.scopus.com/inward/record.url?scp=33745996374&partnerID=8YFLogxK
U2 - 10.1016/j.chemosphere.2005.12.044
DO - 10.1016/j.chemosphere.2005.12.044
M3 - Article
C2 - 16466773
AN - SCOPUS:33745996374
SN - 0045-6535
VL - 64
SP - 1362
EP - 1368
JO - Chemosphere
JF - Chemosphere
IS - 8
ER -