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 plat...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.展开更多
基金financial support from the National Natural Science Foundation of China(21991104).
文摘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.
