کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9623864 | 456591 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Gas-phase isomerization of meta-xylene over USY zeolite in a Riser Simulator: a simplified kinetic model
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 107, Issues 1â3, 15 March 2005, Pages 127-132
Journal: Chemical Engineering Journal - Volume 107, Issues 1â3, 15 March 2005, Pages 127-132
نویسندگان
A. Iliyas, S. Al-Khattaf,