Abstract：A gas-liquid impinging flue-gas cleaner was proposed in the present work and a method of oxygen stripping-air desorption and a dual resistivity probe measurement system were employed to investigate the gas-liquid volumetric mass transfer coefficient and liquid drop holdup in the impacted spray area under different operating conditions. An impacted area load performance map relative to gas and liquid flow rates was established to identify the three typical operation patterns corresponding to the regions which were the clear liquid zone, the turbulent-splashing zone, and the unstable zone. The results showed that in the turbulent-splashing zone, liquid hold-up increased with the increase of superficial liquid velocity. When the operation pattern moved from the clear liquid zone to the turbulent-splashing zone, the volumetric mass transfer coefficient increased dramatically. Based on the comprehensive consideration of pressure drop, mass transfer coefficient and operation stability, the turbulent-splashing zone was believed to be the optimized operating zone. Impinging flue gas cleaner can improve mass transfer coefficient greatly compared with the cleaner without the inner conic plate.
Hu Juan,Liu Mengxi,Huang Yahang. Investigation on Mass Transfer Characteristics of a Gas-LiquidImpinging Flue Gas Cleaner[J]. 化学反应工程与工艺, 2016, 32(3): 237-243.
