کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
151496 | 456472 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
CrOx/SiO2 catalysts prepared by metal vapour synthesis: Physical–chemical characterisation and functional testing in oxidative dehydrogenation of propane
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
In the present work catalysts prepared by a new perspective method of metal vapour synthesis were studied in the reaction of propane oxidative dehydrogenation in the presence of CO2 as a mild oxidant. This method let to obtain on the catalyst surface a high dispersed chromium species even at high chromium loadings. On the surface of the catalysts with the chromium loading up to 6.0 wt% only chromate species were found, the further increase of the chromium loading results in the appearance of the α-Cr2O3. The catalyst with 6.0 wt% demonstrated also the highest catalytic activity with the yield in propene 69%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 166, Issue 3, 1 February 2011, Pages 1132–1138
Journal: Chemical Engineering Journal - Volume 166, Issue 3, 1 February 2011, Pages 1132–1138
نویسندگان
M.A. Botavina, C. Evangelisti, Yu.A. Agafonov, N.A. Gaidai, N. Panziera, A.L. Lapidus, G. Martra,