| Abstract
| - Thermal analyses were used to study the loading and the affinity of organic adsorbates on siliceousferrierite type zeolite, which possesses perfect framework and high hydrophobic character after calcinationfor removing the template in the as-synthesized form. Twenty organic compounds with various functionalgroups, i.e., n-butane, n-pentane, n-hexane, n-heptane, methanol, ethanol, 1-propanol, 1-butanol,methylamine, ethylamine, n-propylamine, n-butylamine, formic acid, acetic acid, formaldehyde, acetaldehyde, diethyl ether, acetone, methyl formate, and ethyl formate, were investigated as the adsorbate. TheAT index, defined as the value of Tdesorption − Tbp, was determined and used to compare the affinity of theorganic compounds toward the zeolite. Organic molecules containing frameworkphilic functional groupssuch as alkylamines show high AT values. The oxygen-containing frameworkphobic functional groups suchas alcohols and organic acids show lower AT values. The effect of other functional groups and the chainlength of the alkyl group on the affinity are discussed. Compared with the data on high silica MFI andFAU zeolites, the AT values exhibit the same tendency for organics with the same functional groups. Theinfluence of pore size and configuration of the zeolites on the AT values of various organic compoundsadsorbed is discussed.
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