کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
49324 1419033 2016 5 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله
A facile strategy for preparation of phosphorus modified HZSM-5 shape-selective catalysts and its performances in disproportionation of toluene
ترجمه فارسی عنوان
استراتژی آسان برای تهیه کاتالیزور شکل انتخابی HZSM-5 اصلاح شده فسفر و اجرای آن در تسهیم نامتناسب تولوئن
کلمات کلیدی
تسهیم نامتناسب تولوئن؛ کاتالیزور انتخابی شکل؛ فسفر؛ HZSM-5
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


• Phosphorus modified HZSM-5 prepared by impregnation with the addition of ethanol
• Excellent performance was obtained in disproportionation of toluene.
• The addition of ethanol promotes the transition of phosphoric acid to phosphate.

The phosphorous modified HZSM-5 catalysts were prepared by using phosphoric acid as the precursor with the addition of ethanol during the impregnation process and their shape-selective performances in the synthesis of p-xylene by disproportionation of toluene were investigated. An excellent para-selectivity along with a relatively high catalytic activity was achieved over the phosphorous modified HZSM-5 catalysts. The addition of ethanol during the impregnation process promotes the transition of phosphoric acid to phosphate, which accomplished the cover of the external acid sites and the reserve of the acid sites in the pores of HZSM-5 zeolite after phosphorous modification.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 77, 5 March 2016, Pages 60–64
نویسندگان
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