气液并流上流式反应器中的气泡特性研究  

INVESTIGATION ON BUBBLE CHARACTERISTICS IN GAS-LIQUID CONCURRENT UP-FLOW REACTOR

作　　者：艾涛 王少兵[1] 王璐璐[1] 毛俊义[1] Ai Tao;Wang Shaobing;Wang Lulu;Mao Junyi(SINOPEC Research Institute of Petroleum Processing,Beijing 100083)

机构地区：[1]中国石化石油化工科学研究院,北京100083

出　　处：《石油炼制与化工》2020年第5期37-41,共5页Petroleum Processing and Petrochemicals

基　　金：中国石油化工股份有限公司合同项目(118003-2)。

摘　　要：在冷模试验装置中对气液并流上流式反应器中的气泡特性进行了研究,考察了气体流量和液体流量对气泡Sauter平均直径、气泡上升速率和床层压降的影响。结果表明:气泡平均直径和气泡上升速率均随气体流量的增大和液体流量的减小而增大;气泡直径分布和气泡上升速率分布均沿反应器径向先增大后减小;床层压降随气体流量的增大而先增大后减小,但受液体流量的影响不显著。通过对试验数据进行无量纲分析,提出了气泡Sauter平均直径与液相雷诺数、气相雷诺数的关系式,结果表明该式能较好地预测气泡Sauter平均直径。The bubble characteristics in the gas-liquid concurrent up-flow reactor and the effect of gas flow rate and liquid flow rate on the bubble Sauter mean diameter,bubble rising velocity and pressure drop was investigated.Results showed that the bubble Sauter mean diameter and bubble rising velocity both increased with increasing gas flow rate and decreasing liquid flow rate.The bubble diameter distribution and rising velocity distribution in the radial direction both increased with increasing radial distance firstly and then decreased.The pressure drop increased with increasing gas flow rate firstly and then decreased,but the effect of liquid flow rate on it was negligible.Through the dimensionless analysis of the experimental data,the relationship between the average diameter of bubble Sauter and the Reynolds number in liquid phase and gas phase was put forward.

关 键 词：上流式反应器 气液分配器 气泡Sauter平均直径 气泡上升速率 床层压降 

分 类 号：TE96[石油与天然气工程—石油机械设备]