| Interaction phenomena between liquid droplets and hot particles—Captured via high-speed camera |
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| 引用本文： | Sebastian Gehrke,Karl-Ernst Wirth. Interaction phenomena between liquid droplets and hot particles—Captured via high-speed camera[J]. 中国颗粒学报, 2009, 7(4) |
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| 作者姓名： | Sebastian Gehrke Karl-Ernst Wirth |
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| 作者单位： | Institute;Particle;Technology;Cauerstrasse;Erlangen;91058;Germany; |
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| 基金项目： | supported by the Deutsche Forschungsgemeinschaft(WI 972/20-1) |
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| 摘 要： | 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 sur...
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| 关 键 词： | Particle–droplet-interaction Leidenfrost phenomenon Direct heat transfer Liquid-feed-injection |
Interaction phenomena between liquid droplets and hot particles-Captured via high-speed camera |
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| Sebastian Gehrke,Karl-Ernst Wirth. Interaction phenomena between liquid droplets and hot particles-Captured via high-speed camera[J]. China Particuology, 2009, 7(4) |
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| Authors: | Sebastian Gehrke Karl-Ernst Wirth |
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| Abstract: | 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. |
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| Keywords: | Particle-droplet-interaction Leidenfrost phenomenon Direct heat transfer Liquid-feed-injection |
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