Abstract: The volumetric mass transfer coefficient was measured by chemical absorption reactions for two-stage spraying rotating packed bed (RPB) under different operating conditions. Effects of the high gravity factor β，the liquid flux and the gas flux on the volumetric mass transfer coefficient kyα in the RPB were investigated. Experimental results showed that the volumetric mass transfer coefficient kyα increases with the gas and the liquid fluxes. When β is small，the experimental curve slope is larger，and kyα increases sharply with the β increase. While，when β reaches to 100，the experimental curve slope becomes small，and kyα increases slowly with the β increase.

摘要： 以两级雾化超重力旋转床为例，用化学吸收法考察了超重力因子β、液体流量、气体流量等对体积传质系数kyα的影响。结果表明：多级雾化超重力旋转床的体积传质系数随气液流量的增加而增加，在β较小时，实验曲线的斜率较大，kyα随β的增加急剧增加；但是当β超过100后，曲线的斜率减小，kyα随β的增加缓慢增大。