Abstract
The transformations of xylenes have been investigated over ZSM-5 zeolite using a fluidized-bed reactor. The sequence of xylenes reactivity is found to decrease as follows: p-xylene > oxylene > m-xylene. o-Xylene transformation exhibits the highest isomerization/disproportionation (I/D) ratio, which decreases rapidly with reaction temperature. p-Xylene selectivity is found to be enhanced at lower reaction temperature. The value of m-xylene/o-xylene (M/O) ratio obtained with p-xylene conversion is higher than the equilibrium value in the initial stage of the reaction. The obtained results indicate higher isomerization selectivity as compared to disproportionation during the conversion of the three xylene isomers.
| Original language | English |
|---|---|
| Pages (from-to) | 1613-1620 |
| Number of pages | 8 |
| Journal | Studies in Surface Science and Catalysis |
| Volume | 158 B |
| DOIs | |
| State | Published - 2005 |
Bibliographical note
Funding Information:The authors gratefully acknowledge King Fahd University of Petroleum & Minerals for the financial support provided for this work under the project 255. We also wish to thank Mr. Mariano Gica and Mr A. Iliyas for their useful collaboration on the experimental work under project 25 5.
ASJC Scopus subject areas
- Catalysis
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Surfaces, Coatings and Films
- Materials Chemistry