کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9610575 47212 2005 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Novel approaches for the improvement of selectivity in the oxidative activation of light alkanes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Novel approaches for the improvement of selectivity in the oxidative activation of light alkanes
چکیده انگلیسی
Selectivity is the key parameter for the practical application of oxidative activation of light alkanes, improving energy and raw materials utilisation efficiency and reducing CO2 formation and emission. The intrinsic process complexity and the catalyst multifunctionality imply the need of a close control of many parameters (active centres nature, reactant composition, reaction mechanism, etc.) to improve the selectivity. Novel approaches to get this goal along three complementary directions, say: oxide nanocatalysts preparation by non-conventional routes (to tune the nature of the active centre), oxidant selection (to avoid overoxidation), and catalyst arrangement (to take advantage of the reaction mechanistic features), are presented and discussed by means of representative examples of their application. These include ODH of propane on nanosized molybdates, ODH of ethane with CO2 on ceria- and MCM-41-based catalysts, and selective oxidation of light alkanes to unsaturated oxygenates over transition metal substituted MCM-41 catalysts.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 99, Issues 1–2, 15 January 2005, Pages 33-41
نویسندگان
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