Comparison of the transport of aromatic compounds in small and large MFI particles

O. C. Gobin, S. J. Reitmeier, A. Jentys, J. A. Lercher

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

58 Zitate (Scopus)

Abstract

The diffusion of alkyl-substituted aromatic molecules in two H-ZSM5 samples consisting of very small (<100 nm) and large (∼3-4 μm) primary particles was investigated by means of the frequency response method. Analysis of the experimental data in combination with the theoretical modeling of the complete transport network shows that the details of the transport processes and the rate determining step depend on the particle size. With large particles, intracrystalline diffusion was rate determining for the overall diffusion, while for the small particles the diffusion was controlled by surface effects.

OriginalspracheEnglisch
Seiten (von - bis)20435-20444
Seitenumfang10
FachzeitschriftJournal of Physical Chemistry C
Jahrgang113
Ausgabenummer47
DOIs
PublikationsstatusVeröffentlicht - 2009

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