从糖甜菜原汁生产乙醇的工艺模型和经济分析，作为清洁生产概念的一部分。
Process model and economic analysis of ethanol production from sugar beet raw juice as part of the cleaner production concept.
机构信息
Faculty of Technology, Department of Biotechnology and Pharmaceutical Engineering, University of Novi Sad, Boulevard cara Lazara 1, 21000 Novi Sad, Serbia.
出版信息
Bioresour Technol. 2012 Jan;104:367-72. doi: 10.1016/j.biortech.2011.10.085. Epub 2011 Nov 4.
The batch fermentation process of sugar beet processing intermediates by free yeast cells is the most widely used method in the Autonomous Province of Vojvodina for producing ethanol as fuel. In this study a process and cost model was developed for producing ethanol from raw juice. The model can be used to calculate capital investment costs, unit production costs and operating costs for a plant producing 44 million l of 99.6% pure ethanol annually. In the sensitivity analysis the influence of sugar beet and yeast price, as well as the influence of recycled biomass on process economics, ethanol production costs and project feasibility was examined. The results of this study clearly demonstrate that the raw material costs have a significant influence on the expenses for producing ethanol. Also, the optimal percentage of recycled biomass turned out to be in the range from 50% to 70%.
利用游离酵母细胞对甜菜加工中间产物进行分批发酵是伏伊伏丁那自治省生产燃料乙醇最广泛使用的方法。本研究开发了从原料汁生产乙醇的工艺和成本模型。该模型可用于计算每年生产 4400 万升 99.6%纯乙醇的工厂的资本投资成本、单位生产成本和运营成本。在敏感性分析中，考察了甜菜和酵母价格以及回收生物质对工艺经济性、乙醇生产成本和项目可行性的影响。本研究结果清楚地表明，原料成本对生产乙醇的费用有重大影响。此外，最佳的回收生物质比例在 50%到 70%之间。
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