Microcalorimetric studies of zeolite acidity |
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| Authors: | D. T. Chen S. B. Sharma I. Filimonov J. A. Dumesic |
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| Affiliation: | (1) Department of Chemical Engineering, University of Wisconsin-Madison, 1415 Johnson Drive, 53706 Madison, WI, USA;(2) Laboratory of Kinetics and Catalysis, Department of Chemistry, Moscow State University, 117234 Moscow, U.S.S.R. |
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| Abstract: | The acidity characteristics of H-ZSM-5, H-Mordenite and H-Y zeolite have been studied by microcalorimetric and gravimetric measurements of pyridine adsorption. H-ZSM-5 and H-Mordenite have Brønsted acid sites of primarily homogenous strength, with H-Mordenite having the stronger sites, whereas H-Y zeolite had Brønsted sites of varying strength. The effects of Na exchange level in H-Y zeolite and high temperature calcination for H-Mordenite have also been examined. |
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| Keywords: | Acidity gravimetry heat of adsorption H-Mordenite H-Y H-ZSM-5 microcalorimetry pyridine zeolite |
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