Study on the holdup and mass transfer performances for gas-liquid-liquid system in a screen plate column

The gas and dispersed phase holdups and mass transfer coefficients of liqui d-iquid were determined for gas-liquid-liquid three phase system in a scree n plate column. The flow pattern of gas-liquid-liquid three phase system wa s studied under different gas velocities. The shape factors showed the geom etric properties of screen plates and the corrected drop characteristic vel ocities were introduced. The phase holdup in two phases was correlated. The research results indicated that mass transfer coefficient for liquid-liqui d system in a column with screen plates and gas agitation was found to incr ease apparently.