Cost Analysis of Ethanol Production from Willow Using Recombinant Escherichia coli
(1994) In Biotechnology Progress 10(5). p.555-560- Abstract
- This study comprises a technical and economic analysis of the production of fuel ethanol by fermentation of a pentose-rich hydrolysate with recombinant Escherichia coli, strain KO11. Hydrolysate from steam-pretreated willow was used as raw material in calculations regarding the fermentation. The calculations were based on a feed capacity of 10 metric tons of dry willow per hour to the pretreatment stage, providing 35 metric tons of hydrolysate per hour, consisting of 45 g of sugars/L, to the pentose fermentation plant. A detoxification step was included, since the hydrolysate has been shown to have an inhibitory effect on the E. coli KO11. The technical data used in the calculations were based on a kinetic fermentation model, which was... (More)
- This study comprises a technical and economic analysis of the production of fuel ethanol by fermentation of a pentose-rich hydrolysate with recombinant Escherichia coli, strain KO11. Hydrolysate from steam-pretreated willow was used as raw material in calculations regarding the fermentation. The calculations were based on a feed capacity of 10 metric tons of dry willow per hour to the pretreatment stage, providing 35 metric tons of hydrolysate per hour, consisting of 45 g of sugars/L, to the pentose fermentation plant. A detoxification step was included, since the hydrolysate has been shown to have an inhibitory effect on the E. coli KO11. The technical data used in the calculations were based on a kinetic fermentation model, which was developed from laboratory-scale experiments in a previous study. The economic analysis predicted an ethanol production cast of 48 cent/L in the pentose fermentation plant, indicating potentially good economy. The detoxification cost constitutes 22% of this cost. Sensitivity analyses revealed that if the concentration of sugars in the feed to the fermentation was decreased by 40% to 27 g/L, the ethanol production cost was increased to 54 cent/L. The production cost was increased to 50 cent/L ethanol if the cell mass was recirculated to the fermentation stage 5 times instead of 20. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3918208
- author
- von Sivers, M ; Zacchi, Guido LU ; Olsson, L and Hahn-Hägerdal, Bärbel LU
- organization
- publishing date
- 1994
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Biotechnology Progress
- volume
- 10
- issue
- 5
- pages
- 555 - 560
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:A1994PL09100017
- scopus:0028500159
- ISSN
- 1520-6033
- DOI
- 10.1021/bp00029a017
- language
- English
- LU publication?
- yes
- id
- 360eb4bc-1799-4c5e-874d-e4f26a8b95df (old id 3918208)
- date added to LUP
- 2016-04-01 15:48:32
- date last changed
- 2023-11-13 23:38:34
@article{360eb4bc-1799-4c5e-874d-e4f26a8b95df,
abstract = {{This study comprises a technical and economic analysis of the production of fuel ethanol by fermentation of a pentose-rich hydrolysate with recombinant Escherichia coli, strain KO11. Hydrolysate from steam-pretreated willow was used as raw material in calculations regarding the fermentation. The calculations were based on a feed capacity of 10 metric tons of dry willow per hour to the pretreatment stage, providing 35 metric tons of hydrolysate per hour, consisting of 45 g of sugars/L, to the pentose fermentation plant. A detoxification step was included, since the hydrolysate has been shown to have an inhibitory effect on the E. coli KO11. The technical data used in the calculations were based on a kinetic fermentation model, which was developed from laboratory-scale experiments in a previous study. The economic analysis predicted an ethanol production cast of 48 cent/L in the pentose fermentation plant, indicating potentially good economy. The detoxification cost constitutes 22% of this cost. Sensitivity analyses revealed that if the concentration of sugars in the feed to the fermentation was decreased by 40% to 27 g/L, the ethanol production cost was increased to 54 cent/L. The production cost was increased to 50 cent/L ethanol if the cell mass was recirculated to the fermentation stage 5 times instead of 20.}},
author = {{von Sivers, M and Zacchi, Guido and Olsson, L and Hahn-Hägerdal, Bärbel}},
issn = {{1520-6033}},
language = {{eng}},
number = {{5}},
pages = {{555--560}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Biotechnology Progress}},
title = {{Cost Analysis of Ethanol Production from Willow Using Recombinant Escherichia coli}},
url = {{http://dx.doi.org/10.1021/bp00029a017}},
doi = {{10.1021/bp00029a017}},
volume = {{10}},
year = {{1994}},
}