气液环流反应器中基于大、小气泡的气含率和液相流动研究  

GAS-PHASE HOLD-UP AND LIQUID-PHASE FLOW CHARACTERISTICS IN AIR-LIFT LOOP REACTOR WITH DIFFERENT LIQUID SURFACE TENSION

作　　者：陈再新[1] 费黎明 范镇 吕德伟 

机构地区：[1]苏州大学 [2]联合化学反应工程研究所浙大分所

出　　处：《苏州大学学报（自然科学版）》1997年第4期94-99,共6页Journal of Soochow University(Natural Science Edition)

摘　　要：针对矩形卧式多级串联环流反应器,在改变气速和表面张力的情况下,将气泡分为大气泡和小气泡两大类,对全系统的气含率、大气泡和小气泡的气含率、液相循环速度、气泡直径等进行了实验考察,并利用漂流模型、最小能耗原理等进行了模拟计算。:In this study, with the multicompartment rectangular air-lift loop reactor, gas velocity and liquid surface tension have been ecperimentally determined. The bubbles are divided into two categories, large bubbles and small bubbles. A drift flux model was adopted to describe the gas hold-up in the riser. Based on the principle of minimum energy dissipation an equation for the liquid circulation was derived. Meanwhile the gas hold-up (small bubbles and large bubbles), liquid circulation velocity and bubbles sizes, as wellas the relationships among them were studied.

关 键 词：气含率 气泡尺寸 气液环流反应器 液相流动 

分 类 号：TQ052[化学工程]