• TRANSPORT PHENOMENA & FLUID MECHANICS • 下一篇
蔡旺锋; 张丹; 许春建; 周明
CAI Wangfeng; ZHANG Dan; XU Chunjian; ZHOU Ming
摘要: A three-dimensional heterogeneous mass transfer model was proposed to investigate the enhancement of dispersed particles on gas absorption. The strate
gy to calculate local and overall enhancement factors is proposed. Instead of a global grid, the composite overlapping grid is adopted, which simplifies
the setup and solution of the three-dimensional model equations. It is found that dispersed particle hold-up, particle size, liquid-solid partition coe
fficient of transported component, characteristic contact time, and the shortest distance between particles and gas-liquid interface have major influenc
e on absorption enhancement factor. The particle-particle interaction on gas absorption and the lateral diffusion of transported component in liquid fil
m were studied with the multi-particle simulation. The proposed model predicted the experimental data from the literature reasonably well.