现代化工

现代化工 ›› 2019, Vol. 39 ›› Issue (9) : 183-187. DOI: 10.16606/j.cnki.issn 0253-4320.2019.09.039

工艺与设备

循环流化床颗粒团絮现象分析及对策研究

李斌, 李晓宏, 毛吉会

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Analysis and countermeasure on particle flocculation in circulating fluidized bed

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Received		Published
2018-11-30		2019-09-20
Issue Date	Revised Date
2019-09-12	2018-11-30

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摘要

通过中试装置核心反应器床层温度分布梯度、床层压降以及流化操作气速分析后认为，流态化过程当中造成颗粒团絮的原因主要是床层形态；可从工艺控制方面通过调整循环流化床循环倍率、操作气速，可有效控制颗粒团絮的尺寸、数量以及速率。

Abstract

Based on analysis on temperature gradient,pressure drop and gas velocity of fluidized bed in the core reactor of pilot plant,it is considered that the main cause of particle flocculation in fluidization process is the bed morphology.The size,quantity and rate of particle flocculation can be effectively controlled by adjusting the circulating ratio and operating gas velocity of circulating fluidized bed.