کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
672623 887516 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Interaction phenomena between liquid droplets and hot particles—Captured via high-speed camera
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Interaction phenomena between liquid droplets and hot particles—Captured via high-speed camera
چکیده انگلیسی

The interaction of evaporating droplets and hot catalyst particles plays a major role in heterogeneously catalysed reactions. The liquid feed is injected into a gas–solid flow and is mixed with the catalyst. The interaction phenomena determine the evaporation time which should be minimised to keep the reactor vessel small. First measurements with a bed of fixed hot FCC-particles (fluid catalytic cracking) and two model fluids have been conducted. The interactions of ethanol and water droplets with the hot bed surface were captured via a high-speed camera. While the ethanol droplet developed a stable steam cushion due to Leidenfrost phenomena, water showed intense interaction and steam explosions which induced repulsion and atomisation of the droplet.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Particuology - Volume 7, Issue 4, August 2009, Pages 260–263
نویسندگان
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