Limiting current density data were obtained at point electrodes fixed flush with inner surface of the outer cylinder of an electrochemical cell in which a coaxially placed cylindrical rod is rotated at different rotational velocities in the presence of fluidizing solids. The variables covered in the present study are rpm of inner annular rod, diameter of rod, solid fraction and flow rate of the electrolyte. Mass transfer coefficients, which were computed from limiting current density data, were found to increase with an increase in the velocity of the fluid electrolyte through the annular cell in the presence of fluidizing solids. No specific trend was observed with respect to the rpm of the central annular rod. The variation in mass transfer coefficient values due to change in the rod diameter was just marginal. The bed expansion data represented Richardson-Zaki equation with an exponent of 2.15. Colburn j_D-factor format has been used to correlate the data on mass transfer coefficients.

在与电化学电池的外圆柱体的内表面齐平固定的点电极上获得极限电流密度数据，在该电极中，在存在流化固体的情况下，同轴放置的圆柱棒以不同的旋转速度旋转。本研究涵盖的变量是内环形杆的rpm，杆的直径，固体分数和电解质的流速。发现在存在流化固体的情况下，通过极限电流密度数据计算出的传质系数随着通过环形槽的流体电解质速度的增加而增加。关于中央环形杆的转速，没有观察到特定趋势。由于杆直径的变化而引起的传质系数值的变化仅是很小的。床膨胀数据表示Richardson-Zaki方程的指数为2.15。科尔本_D因子格式已用于将数据与传质系数相关。