The Euler-Euler two-fluid model was used to numerically simulate and study the gas-liquid two phase flow in a bubbling bed reactor with horizontal perforated plates,and further explore the effects of different horizontal perforated plates and superficial gas velocity conditions on the gas holdup and bubble diameter in the bubbling bed reactor.The results show that when the superficial gas velocity increased from 0.5 m/s to 1.0 m/s,the overall gas holdup in the reactor with horizontal porous plates significantly increased;after installing the perforated plate,the distribution range of bubbles in the central area is widened;when the axial liquid velocity is 0,the radial dimensionless distribution range of the liquid phase flowing upward in the reactor without perforated plates is 0-0.57,while that in the reactor with perforated plates is 0-0.64.Therefor,the installation of horizontal perforated plates can enhance the aggregation and fragmentation of bubbles,widening the dispersion range of large bubbles in the central area of the reactor.
关键词
鼓泡床反应器/CFD-PBM模型/轴向液速/气含率
Key words
bubbling bed reactor/CFD-PBM model/axial liquid velocity/gas holdup
维普
万方数据