磁场流化床反应器大规模糖蜜酒精发酵可行性的研究

Study on the Feasibility on Large-scale Molasses Ethanol Fermentation by Magnetic-field Fluidized Bed Reactor

采用磁性固定化酵母细胞技术,对大规模磁场流化床反应器糖蜜酒精发酵工艺进行了研究,并对其经济可行性进行了分析。结果表明,采用磁场流化床反应器糖蜜酒精发酵工艺,糖的转化率可达92%以上,残糖浓度在1.5%以下,最终乙醇浓度可达9.5%(v/v)以上,处理能力为240L乙醇/d,生产能力为15.2L乙醇/m3反应器.h。经济评价表明,磁场流化床反应器糖蜜酒精发酵具有很好的经济效益。

Large-scale molasses ethanol fermentation by magnetic-field fluidizcd bed reactor was studied by the use of magnetic immobilized yeast cells technique and its economic feasibility was also analyzed. The results showed that the transform rate of sugar was above 92 % and the concentration of the residual sugar is below 1.5 % with the utilization of such method, and the final ethanol concentration was no less than 9.5 %（v/v） and the disposal capability could reach 240 L ethanol/per day and its productivity got to 15.2 L ethanol / （m^3 reactor·h ）. Accordingly, It was concluded that such method could produce satisfactory economic benefits.