Abstract
The gas-phase isomerization of meta-xylene has been carried out over USY zeolite catalyst using a fluidized bed reactor under relevant reaction conditions for FCC (temperature, contact time, reactant partial pressure, catalyst/oil ratio). Experimental results clearly indicate the presence of bimolecular isomerization pathway, in addition to the monomolecular isomerization reaction. The disproportionation/isomerization (D/I) ratio was found to increase steadily with both m-xylene conversion and reaction temperature, whereas p-xylene/o-xylene (P/O) ratio was only mildly affected with both reaction parameters. A simplified kinetic model based on reactant-converted (RC) deactivation model was developed for the reaction and compared with the obtained experimental data. The apparent kinetic parameters were estimated using nonlinear regression analysis.
| Original language | English |
|---|---|
| Pages (from-to) | 127-132 |
| Number of pages | 6 |
| Journal | Chemical Engineering Journal |
| Volume | 107 |
| Issue number | 1-3 |
| DOIs | |
| State | Published - 15 Mar 2005 |
Bibliographical note
Funding Information:The authors gratefully acknowledge King Fahd University of Petroleum and Minerals for the financial support provided for this work under the project 255.
Keywords
- Fluidized bed reactor
- Kinetic modeling
- Meta-xylene isomerization
- USY zeolite
ASJC Scopus subject areas
- General Chemistry
- Environmental Chemistry
- General Chemical Engineering
- Industrial and Manufacturing Engineering