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The techno-economic assessment for the plant of solid substrate fermentation of refining ethanol from sweet sorghum stalk

机译：甜高粱秆精制乙醇固态底物发酵装置的技术经济评价

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摘要

Technological process of a pilot plant of solid substrate fermentation of refining ethanol from sweet sorghum stalk was described. The techno-economic assessment of the pilot plant was carried out with cost and profit method. Results showed that ethanol yield was 90% and the spent residue of fermentation can be converted to forage. In addition, Net Present Value (at discount rate of 10%), Internal Return Rate and Profit/Cost of financial analysis in project level were 94.30 ×10~4 Yuan, 19.86% and 1.07, respectively. The dynamic payback period was 7-8 years. As a result, the project was feasible. The ethanol price had highest effect on the changes of Internal Return Rate of the project. And annual operation cost and initial investment ranked second and third, respectively. Under the condition of fixed capacity of fermentation equipment, the effects of sugar content of sweet sorghum stalk and ethanol yield on the changes of internal return rate were the same as that of ethanol price. Therefore, the project had a big market potential with the increase of ethanol price.
机译：描述了从甜高粱茎中提纯乙醇的固体底物发酵中试工厂的工艺过程。中试工厂的技术经济评估采用成本和利润法进行。结果表明，乙醇产率为90％，发酵废渣可转化为饲料。此外，项目一级财务分析的净现值（折现率10％），内部收益率和利润/成本分别为94.30×10〜4元，19.86％和1.07。动态投资回收期为7-8年。结果，该项目是可行的。乙醇价格对项目内部收益率的变化影响最大。年度运营成本和初始投资分别排名第二和第三。在固定发酵设备容量的条件下，甜高粱茎秆含糖量和乙醇产量对内部收益率变化的影响与乙醇价格相同。因此，随着乙醇价格的上涨，该项目具有很大的市场潜力。

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  • 来源
    《International Journal of Global Energy Issues》 |2009年第4期|262-271|共10页
  • 作者

    Xiaoyan Mei; Ronghou Liu;

  • 作者单位

    Biomass Energy Engineering Research Centre, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, PR China;

    Biomass Energy Engineering Research Centre, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    ethanol; fermentation; sweet sorghum; techno-economic assessment;

    机译：乙醇发酵甜高粱技术经济评估;

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