Preliminary estimate of the cost of ethanol production for SSF technology

The Solar Energy Research Institute (SERI) recently completed a detailed engineering and economic analysis of the simultaneous saccharification and fermentation (SSF) based wood-to-ethanol process. The reference-case design was based on a plant capacity of 1920 dry t/d and a wood cost of $42/dry t....

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Bibliographic Details
Published in:Applied biochemistry and biotechnology 1992-03, Vol.34-35 (1), p.639-649
Main Authors: HINMAN, N. D, SCHELL, D. J, RILEY, C. J, BERGERON, P. W, WALTER, P. J
Format: Article
Language:English
Subjects:
Biofuel production
Biological and medical sciences
Biotechnology
economics
Energy
ethanol
fermentation
Fundamental and applied biological sciences. Psychology
Industrial applications and implications. Economical aspects
lignocellulose
production
wood
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Summary:The Solar Energy Research Institute (SERI) recently completed a detailed engineering and economic analysis of the simultaneous saccharification and fermentation (SSF) based wood-to-ethanol process. The reference-case design was based on a plant capacity of 1920 dry t/d and a wood cost of $42/dry t. For this case, the preliminary estimate of the production cost of the ethanol product is about $1.22/gal. The combined effects of optimizing SSF enzyme loading, increasing plant capacity to 10,000 dry t/d, and reducing wood cost to $34/dry t are to reduce the preliminary estimate of the production cost to about $0.95/gal. Other technological improvements may further reduce the production cost. Certain technical assumptions, inherent in the analysis, are being investigated further.
ISSN:0273-2289
1559-0291
DOI:10.1007/bf02920584