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Date of Publication:2012-01-01

Journal:过程工程学报

Issue:1

Page Number:97-104

ISSN No.:1009-606X

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%(��). 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 CO 2 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 CO 2 are obviously favorable for profit of process.

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