Research progress on gas-liquid flow and mass transfer characteristics in microchannels
Microchemical processes have inherent advantages in efficiency,safety,energy conservation,small size,and high heat and mass transfer rates,and exhibit enormous development potential in the field of gas-liquid heterogeneous mass transfer and reaction enhancement.This article systematically discussed the current research status of gas-liquid two-phase flow and mass transfer characteristics in microchannels,summarized the gas-liquid two-phase flow shape and distribution in microchannels,analyzed the key factors affecting the two-phase flow shape from the aspects of operating conditions and microchannel design,discussed how multiple factors affect mass transfer and process enhancement,and summarized and classified the currently studied gas-liquid two-phase mass transfer models in microchannels.Based on the flow patterns of gas-liquid two-phase flow in the main flow channels,the latest research progress of various gas-liquid two-phase microreactors was classified and introduced.The article points out that further exploration of strengthening methods for microchemical processes and the development of new gas-liquid microchannel reactors are still the key development directions for future microchemical research.
microchemical technologygas-liquid flowmass transfer and reactionprocess intensification
万方数据
维普
