Abstract: Volumtric liquid-phase mass-transfer coefficients of oxygen-water and oxygen-C7 F15COONa aqueous solution systems were determined in a horizontal vessel equipped with a stirrar. Experiments were conducted through the steady physical absorption of oxygen in aqueons solutions. The effects ofvarious parameters, such as L/Dt, Di/Dt, Liquid hold-up, types and number of impellers etc, on the gas-liquid mass transfer coefficient kLa are being discussed. Correlations with experimental results were also given. In addition, a criterion for kLa to be used in the sealing-up of a horizontal vessel of similar geometry was given as: Fr=const. or Pv = const.

摘要： 分别在纯水-O_2、乳化剂水溶液-O_2两个体系中,实测了卧式釜中长径比、桨径釜径比、液含率、搅拌桨个数、叶片数及操作条件对气液传质容量系数K_(La)的影响,关联了低Fr数区的实验结果;提出了以K_La为目标函数的放大准则:在几何相似条件下,保持Fr=const.,或P_v=const..