کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
51137 46831 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Carbon dioxide in the dehydrogenation of isobutane over VMgOx
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Carbon dioxide in the dehydrogenation of isobutane over VMgOx
چکیده انگلیسی

On the basis of catalytic tests and kinetic investigations, the role of carbon dioxide in the conversion of isobutane to isobutene over VMgOx catalyst was studied. It was shown that both the high temperature (>826 K) and the presence of VMgOx catalyst are required for activation of CO2 molecule. Presented results stay in agreement with thermodynamic analysis of the isobutane dehydrogenation process, where the two-step dehydrogenation pathway (i.e., simple dehydrogenation followed by reverse water gas shift reaction) was the most favorable way of isobutene synthesis. Moreover, insufficient oxidizing property of carbon dioxide allows to exclude possibility of the redox-cycle mechanism over VMgOx catalyst.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 11, Issue 2, 30 October 2009, Pages 132–136
نویسندگان
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