低高径比喷射环流生化反应器流体力学和发酵性能的研究

Studies About Hydrodynamics and Characteristics of Fermentation of the Jet Loop Bioreactor with Low Height-diameter Ratio

对高径比s≤2.5喷射环流生化反应器的流体力学和传质特性进行了系统的研究,选出反应器的最佳结构,关联出氧的体积传递系数(k_La)表达式。在此基础上,进行了谷氨酸发酵试验,摸索出用该设备进行谷氨酸发酵的最佳工艺条件,使5批一次性投糖发酵的糖酸转化率达到50％以上。

The hydrodynamics and mass transfer characteristics of jet loop bioreactor with low height-diameter ratio s≤2.5 were studied in detail. The most suitable structure and volume oxygen transfer coefficient were obtained. According to above results,the experiments of glutamic acid fermentation were carried out,and the sugar-acid conversion in five batch fermentations were reached above 50%.