气液向上或向下并流固定床动持液量测定  

LIQUID HOLDUP MEASUREMENTS IN DOWNWARD FLOW AND UPWARD FLOW FIXED-BED REACTORS

作　　者：AnterA.M. 肖琼[1] 程振民[1] 袁渭康[1] 

机构地区：[1]华东理工大学联合化学反应工程研究所,上海200237

出　　处：《化工学报》2000年第4期535-539,共5页CIESC Journal

基　　金：上海市科委新材料研究中心资助;化学反应工程国家重点实验室资助

摘　　要：In this work,at a pressure of 2.0 MPa and room temperature,the effects of gas and liquid flowrates, liquid viscosity and operation pressure on the dynamic liquid holdup were investigated in a downward flow and upward flow fixed-bed reactor. With an air-water-solid packing system, experimental results show that the dynamic liquid holdup increased with an increases of liquid mass flowrates.It decreased with an increasing of gas volume flowrates and porosity of packed bed. It was also shown that there was no large effect on dynamic liquid holdup with an increase of liquid dynamic viscosity. The correlations of dynamic liquid holdup was also given under these two kinds of operation.In this work,at a pressure of 2.0 MPa and room temperature,the effects of gas and liquid flowrates, liquid viscosity and operation pressure on the dynamic liquid holdup were investigated in a downward flow and upward flow fixed-bed reactor. With an air-water-solid packing system, experimental results show that the dynamic liquid holdup increased with an increases of liquid mass flowrates.It decreased with an increasing of gas volume flowrates and porosity of packed bed. It was also shown that there was no large effect on dynamic liquid holdup with an increase of liquid dynamic viscosity. The correlations of dynamic liquid holdup was also given under these two kinds of operation.

关 键 词：固定床 动持液量 气液并流向上 气液并流向下 

分 类 号：TQ051.14[化学工程]