欢迎访问过程工程学报, 今天是

›› 2004, Vol. 4 ›› Issue (3): 193-197.

• 流动与传递 •    下一篇

气体喷射筛板萃取塔的滞液率和气含率

吕树祥,王莅,刘建国,王亚权,米镇涛   

  1. 天津大学化工学院
  • 出版日期:2004-06-20 发布日期:2004-06-20

Holdups of Dispersed and Gas Phases in a Gas-agitated Sieve Plate Extraction Column

LU Shu-xiang,WANG Wei,LIU Jian-guo,WANG Ya-quan,MI Zhen-tao   

  1. School of Chemical Engineering and Technology, Tianjin University
  • Online:2004-06-20 Published:2004-06-20

PDF

摘要： 以水和蒽醌法生产过氧化氢的工作液为研究物系，在内径为50 mm的筛板萃取塔内，模拟工业操作条件，研究了空气-水-蒽醌工作液三相物系的分散相滞液率和气含率. 讨论了气相、分散相和连续相流速对分散相滞液率和气含率的影响，并提出了用于预测气-液-液三相萃取系统的分散相滞液率和气含率的关联式. 结果表明，滞液率关联式的预测值与实验结果的平均相对偏差为7.3%，气含率关联式的预测值与实验结果的平均相对偏差为7.1%.

关键词: 流体力学, 滞液率, 气含率, 气体喷射萃取, 蒽醌工作液

Abstract: The hydrodynamic characteristics of the air-water-working solution (a mixture of anthraquinone derivatives, TOP and C9 aromatics, used for industrial production of hydrogen peroxide) three-phase system in a gas-agitated sieve plate extraction column were investigated. The holdups of the dispersed and gaseous phases were measured by the shut-off method, respectively. The effects of the superficial velocities of air, dispersed and continuous phases on the holdups of dispersed and gaseous phases were studied. Correlations for the prediction of holdups of dispersed and gaseous phases in the air-water-working solution three-phase system have been proposed. The comparison of the predicted data with correlations and experimental data shows quite satisfactory agreement and the average relative deviations are 7.3% for the dispersed phase holdup and 7.1% for the gas phase holdup, respectively.

Key words: hydrodynamic, dispersed holdup, gas holdup, gas-agitated extraction, working solution

中图分类号: