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Journal articles
Demonstration of improved effectiveness factor of catalysts based on hollow single crystal zeolites
Abstract : Pt/NaY zeolites with bulk and hollow morphologies have been used as model catalysts in the hydrogenation of cyclohexene as model reaction. In contrast to most hierarchical zeolites, the presence of a single internal cavity modifies only the mean diffusion length, without changing the external surface area and the crystal size. Differences in catalytic activities have been attributed to a shorter diffusion length in hollow crystals. The volume fraction of zeolite used in bulk crystals (ca. 0.63–0.70) matches well with the shell thickness in hollow crystals, leading to an efficiency factor value for the latter close to 1.
Cited literature [45 references]
https://hal-ifp.archives-ouvertes.fr/hal-01980870
Contributor : Catherine Belli <>
Submitted on : Monday, January 14, 2019 - 5:04:43 PM
Last modification on : Sunday, September 20, 2020 - 10:40:02 AM
Contributor : Catherine Belli <>
Submitted on : Monday, January 14, 2019 - 5:04:43 PM
Last modification on : Sunday, September 20, 2020 - 10:40:02 AM