کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
56649 47090 2010 5 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of the support nature and morphology on the performance of ruthenium catalysts for partial hydrogenation of benzene in liquid phase
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موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Influence of the support nature and morphology on the performance of ruthenium catalysts for partial hydrogenation of benzene in liquid phase
چکیده انگلیسی

This paper is aimed at studying the influence of the support nature and morphology on the performance of ruthenium catalysts for partial hydrogenation of benzene in liquid phase. Therefore, Al2O3 and Nb2O5 supports were employed with different values of particle diameter and superficial specific area. The catalysts were prepared through incipient impregnation from an aqueous solution of the RuCl3·xH2O precursor. After impregnation, the solids underwent a reduction treatment under H2 flow at the temperature of 573 K. The solids were characterized through the techniques of particle size distribution, XRD, BET, SEM + EDX and TPR. The catalytic performances were evaluated within the hydrogenation of benzene in liquid phase, conducted at 373 K under constant pressure of 5.0 MPa of H2. For the conditions employed, the results show that the support nature practically exerts no influence upon the selectivity of the intermediate product to the benzene → cyclohexene → cyclohexane reaction. However, the increase in the particle diameter or in the superficial specific area of the support decreases the yield of cyclohexene.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 149, Issues 3–4, 30 January 2010, Pages 321–325
نویسندگان
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