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Dry‐Grind Process for Fuel Ethanol by Continuous Fermentation and Stripping

Dry‐Grind Process for Fuel Ethanol by Continuous Fermentation and Stripping Conversion of a high‐solids saccharified corn mash to ethanol by continuous fermentation and stripping was successfully demonstrated in a pilot plant consuming 25 kg of corn per day. A mathematical model based on previous pilot plant results accurately predicts the specific growth rate obtained from these latest results. This model was incorporated into a simulation of a complete dry‐grind corn‐to‐ethanol plant, and the cost of ethanol production was compared with that of a conventional process. The results indicate a savings of $0.03 per gallon of ethanol produced by the stripping process. The savings with stripping result from the capacity to ferment a more concentrated corn mash so there is less water to remove downstream. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Biotechnology Progress Wiley

Dry‐Grind Process for Fuel Ethanol by Continuous Fermentation and Stripping

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References (31)

Publisher
Wiley
Copyright
Copyright © 2000 American Institute of Chemical Engineers (AIChE)
ISSN
8756-7938
eISSN
1520-6033
DOI
10.1002/btpr.297
pmid
19653307
Publisher site
See Article on Publisher Site

Abstract

Conversion of a high‐solids saccharified corn mash to ethanol by continuous fermentation and stripping was successfully demonstrated in a pilot plant consuming 25 kg of corn per day. A mathematical model based on previous pilot plant results accurately predicts the specific growth rate obtained from these latest results. This model was incorporated into a simulation of a complete dry‐grind corn‐to‐ethanol plant, and the cost of ethanol production was compared with that of a conventional process. The results indicate a savings of $0.03 per gallon of ethanol produced by the stripping process. The savings with stripping result from the capacity to ferment a more concentrated corn mash so there is less water to remove downstream.

Journal

Biotechnology ProgressWiley

Published: Jan 1, 2000

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