内外双环流气升式发酵罐的开发

Development of double exlernal and internal circulat- ing air-lift fermentation tanks.

基于对实际应用中气升式循环发酵罐的分析研究，提出了一种新的动力输入方式，并由此开发了内外双环流气升式发酵罐。在１３０ｍ￣３发酵罐中进行谷氨酸发酵试验表明：无菌压缩空气耗量比一般气升式发酵罐减少５０％，与通气搅拌式发酵罐相比空气耗量减少１２％，，总能量消耗分别下降了２３％和２５％。

ased on analyses and research of alr-lift circulating fermentation tanks in application,a new type of energy in- put was proposed,and the double external and internal cir- culating air-lift fermentation tanks was developed in this condition. The fermentating experiment of glutamic aeid in a130m￣3 fermentation tank showed that the consumption of axenic compressed air of the double external and internal circulating air-lift fermentation tanks was less 50%than that of common air-lift fermentation tanks.the air com-sumption of the tanks was less l 2%than that of stirring fermentation tanks,the total energy consumption of the tanks reduced 23%and 25%in respective comparison with those of common air-lift fermentation tanks and stirring fermentation tanks.