کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9610127 | 47167 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Design and fabrication of a structured catalytic reactor at micrometer scale: Example of methylcyclohexane dehydrogenation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A silicon micro-structured reactor has been designed for gas-solid heterogeneous catalysis, in particular for the dehydrogenation of methylcyclohexane. Two types of catalyst deposition on silicon have been evaluated: the first consists of a washcoat deposition of a γ-alumina layer followed by Pt impregnation, the second is a cathodic Pt film sputtering. The Pt/Al2O3 catalyst reveals a higher activity for this reaction and was selected for further investigation. Since the micro-structured reactor is composed of pillars of typical dimension 5 Ã 100 μm, a special washcoat method has been developed leading to the controlled deposition of a homogeneous γ-alumina layer of thickness <1 μm. Because the dehydrogenation reaction is endothermic (204 kJ molâ1) and conducted at ca. 380 °C, heaters have been integrated using screen-printing methods. FEMLAB simulations have helped to integrate the hot reaction zone and a low temperature section for connectors (<200 °C) in a 10 Ã 30 mm chip.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 110, Issues 1â2, 15 December 2005, Pages 164-170
Journal: Catalysis Today - Volume 110, Issues 1â2, 15 December 2005, Pages 164-170
نویسندگان
Marilyne Roumanie, Valérie Meille, Christophe Pijolat, Guy Tournier, Claude de Bellefon, Patrick Pouteau, Cyril Delattre,