固含率·三相流化床流体动力学性质的影响因素  

Solid-Phrase Percentage·the Influencial Factor of Inter-Loop Three Phrases Fluidized Bed Reactor's Hydrokinetics

作　　者：疏明君[1] 李友明[1] 谢澄[1] 

机构地区：[1]华南理工大学造纸与污染控制国家工程研究中心,广州市510641

出　　处：《湘潭大学自然科学学报》2002年第2期58-61,共4页Natural Science Journal of Xiangtan University

摘　　要：描述了载体对内循环三相流化床流体动力学性质的影响 .随着载体的加入量增大 ,气含率 (εg)、氧传递系数(Kα)、循环时间 (Tm)和混合时间 (Tc)均有减小的趋势 .同时 ,实验证明还发现气流量对流化床内载体的分布情况影响不大 .在分析了固含率对流体动力学性质的影响之后 ,得出固含率的最佳值为 3%～ 10Carriers' addition could influence the hydrokinetics of the inter-loop three phrases fluidized bed reactor. With the increase of the addition of carriers,ε g?K α?T m and T c have the declining trend. Meanwhile, we observed that gas flux has little influence on the distribution of carries in the three-phrase fluidized bed reactor. After analyzing the effects, we draw the conclusion that the best value of carrier's percentage is between 3% and 10%.

关 键 词：固含率 三相流化床 流体动力学 气含率 氧传递系数 

分 类 号：TQ051.13[化学工程] TQ021.1