A general pressure drop model based on liquid holdup of gaseliquid flow in micro-packed beds  

作　　者：Junjie Wang Lin Sheng Jiang Deng Guangsheng Luo 

机构地区：[1]The State Key Laboratory of Chemical Engineering,Department of Chemical Engineering,Tsinghua University,Beijing 100084,China

出　　处：《Chinese Journal of Chemical Engineering》2024年第12期147-156,共10页中国化学工程学报（英文版）

基　　金：financial support from the National Natural Science Foundation of China(21991104).

摘　　要：The understanding of the gas-liquid flow characteristics in a micro-packed bed reactor is still immature,especially for many gas-organic working systems commonly used in industry.Accordingly,this study proposes a platform to investigate the gas-eliquid flow characteristics in a micro-packed bed reactor and presents a unified expression for these characteristics of both organic and aqueous liquid phase.The influence of two-phase flow rate,working solution viscosity,and packing particle size on the liquid holdup and pressure drop were studied.The gas-organic working systems results show that the liquid holdup ranges between 0.5 and 0.8 and pressure drop ranges from 50 to 350 kPa·m^(-1).In particular,a strong correlation between the two flow characteristics parameters(liquid holdup and pressure drop)was proposed for the first time.Finally,a general pressure drop mathematical prediction model in micropacked bed were developed.

关 键 词：Gas-liquid flow Micro-packed bed reactors Liquid holdup Pressure drop Mathematical model 

分 类 号：TQ021.1[化学工程]