Experimental and analytical study of the solids circulation loop of a compartmented fluidized bed

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• 作者：Craig Hulet ; Cedric Briens ; Franco Berruti ; Edward W. Chan
• 关键词：Compartmented fluidized bed ; Entrainment ; Vertical transport line ; Pressure balance ; Riser inlet configuration ; CO₂ tracer
• 刊名：Powder Technology
• 出版年：2008
• 出版时间：1 July 2008
• 年：2008
• 卷：185
• 期：2
• 页码：131-143
• 全文大小：945 K

文摘

Experiments were conducted to identify the necessary conditions for achieving stable operation and identify the operational range of a novel fluidized solids circulation system using a compartmented fluidized bed and vertical transport line (VTL). The VTL has allowed the conveying of relatively fine particles (Group B — near the transition from Group A to B) under a wide range of experimental conditions. It was also demonstrated that the nozzle geometric configuration can alter the entrainment behaviour of the motive gas jet quite significantly by altering the flow patterns in the vicinity of the jet. Of all the geometric modifications studied, the inclined plate and the shroud were shown to have the most favourable impact on the entrainment rate.