Abstract: A novel concept of gas - liquid reactors, bubble effectiveness, is presented. Through theoretical analysis and derivation, the expression of single bubble and bubble swarm effectiveness is obtained. It is found that the bubble effectiveness depends on a dimensionless group ψb, which includes the effects of properties of reaction system, operating condition and configuration of equipment.

摘要： 针对气液反应器,提出了一个新概念——气泡有效利用率。通过理论分析及推导,得到在假定条件下的单气泡有效利用率η_s与准数φ_b的关系式。准数φ_b关联了物性条件、设备条件和操作条件,它间接反映了这三个条件对气泡有效利用率η_s的影响。并推导出不同大小和不同停留时间分布的气泡群的气泡利用率的计算式,对气液反应器的设计有重要意义。