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›› 2012, Vol. 12 ›› Issue (1): 97-104.

• 系统与集成 • 上一篇    下一篇

纤维素燃料乙醇技术经济分析

姜芹 孙亚琴 滕虎 修志龙 刘春朝   

  1. 大连理工大学生命科学与技术学院 大连理工大学环境与生命学院生物科学与工程系 大连理工大学生命科学与技术学院 大连理工大学生命科学与技术学院 中国科学院过程工程研究所生化工程国家重点实验室
  • 收稿日期:2011-10-28 修回日期:2012-01-09 出版日期:2012-02-20 发布日期:2012-02-20
  • 通讯作者: 修志龙

Techno-economic Analysis of Cellulosic Ethanol

JIANG Qin SUN Ya-qin TENG Hu XIU Zhi-long LIU Chun-zhao   

  1. School of Life Science and Biotechnology, Dalian University of Technology Department of Bioscience and Biotechnology, School of Environmental and Biological Science and Technology, Dalian University of Technology School of Life Science and Biotechnology, Dalian University of Technology School of Life Science and Biotechnology, Dalian University of Technology State Key Laboratory of Biochemical Engineering, Institute of Process Engineering
  • Received:2011-10-28 Revised:2012-01-09 Online:2012-02-20 Published:2012-02-20
  • Contact: XIU Zhi-long

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被引次数

58

摘要： 考察了以玉米秸秆为原料生产燃料乙醇的工艺流程，对年产5万t燃料乙醇的生产工艺进行了技术经济和敏感性分析. 蒸馏能耗分析表明，当发酵醪中乙醇浓度高于4%(w)时蒸馏的能耗比较低. 年产5万t燃料乙醇的直接固定成本约1.37亿元，乙醇的最低成本为8425 ￥/t. 该工艺能副产3.75万t CO2和215 t杂醇油，可带来额外收益2386万元. 经济敏感性分析表明，纤维素酶价格对生产成本的影响较显著，副产物CO2的回收利用可明显增加收益.

关键词: 玉米秸秆, 纤维素, 燃料乙醇, 经济技术分析

Abstract: The process technology for fuel ethanol production from corn straw was investigated, and then the techno-economic and sensitivity analysis were conducted on an annual capacity of 50000 t ethanol. The simulation shows that the energy consumption of crude distillation tower is obviously low when the ethanol concentration in fermentation broth is higher than 4%(w). Direct fixed capital of the process is about 137 million yuan and the lowest cost for cellulosic ethanol is 8425 ￥/t. The annual by-product output of 37500 t CO2 and 215 t fusel oil would bring additional revenue 23.86 million yuan. The economic sensitivity analysis shows that the price of cellulase is relatively sensitive to the production cost of ethanol, and the recovery and utilization of CO2 are obviously favorable for profit of process.

Key words: corn straw, cellulose, fuel ethanol, techno-economic analysis

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