Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
51632 | Catalysis Communications | 2008 | 5 Pages |
Abstract
The liquid-phase dehydration of 1-phenylethanol over mordenite-like zeolites, with different Si/Al ratios, was studied at 363 K using cyclohexane as solvent. It was determined that catalyst activity and selectivity greatly depended on the Si/Al ratio. The non-dealuminated mordenite showed the lowest activity, dehydrating 1-phenylethanol mainly to α-methylbenzyl ether via an intermolecular mechanism. Instead, intramolecular dehydration of 1-phenylethanol into styrene was mainly observed over dealuminated samples. Changes in catalytic performance with Si/Al ratio was explained on the basis of: (1) acid site density; (2) relative amount of strong acid sites respect to weak ones; (3) accessibility to strong acid sites.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Nicolás M. Bertero, Carlos R. Apesteguía, Alberto J. Marchi,