Process Design and Economics of On-Site Cellulase Production on Various Carbon Sources in a Softwood-Based Ethanol Plant
Joint Authors
Barta, Zsolt
Zacchi, Guido
Reczey, Kati
Kovacs, Krisztina
Source
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-06-28
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
On-site cellulase enzyme fermentation in a softwood-to-ethanol process, based on SO2-catalysed steam pretreatment followed by simultaneous saccharification and fermentation, was investigated from a techno-economic aspect using Aspen Plus© and Aspen Icarus Process Evaluator© softwares.
The effect of varying the carbon source of enzyme fermentation, at constant protein and mycelium yields, was monitored through the whole process.
Enzyme production step decreased the overall ethanol yield (270 L/dry tonne of raw material in the case of purchased enzymes) by 5–16 L/tonne.
Capital cost was found to be the main cost contributor to enzyme fermentation, constituting to 60–78% of the enzyme production cost, which was in the range of 0.42–0.53 SEK/L ethanol.
The lowest minimum ethanol selling prices (4.71 and 4.82 SEK/L) were obtained in those scenarios, where pretreated liquid fraction supplemented with molasses was used as carbon source.
In some scenarios, on-site enzyme fermentation was found to be a feasible alternative.
American Psychological Association (APA)
Barta, Zsolt& Kovacs, Krisztina& Reczey, Kati& Zacchi, Guido. 2010. Process Design and Economics of On-Site Cellulase Production on Various Carbon Sources in a Softwood-Based Ethanol Plant. Enzyme Research،Vol. 2010, no. 2010, pp.1-8.
https://search.emarefa.net/detail/BIM-494384
Modern Language Association (MLA)
Barta, Zsolt…[et al.]. Process Design and Economics of On-Site Cellulase Production on Various Carbon Sources in a Softwood-Based Ethanol Plant. Enzyme Research No. 2010 (2010), pp.1-8.
https://search.emarefa.net/detail/BIM-494384
American Medical Association (AMA)
Barta, Zsolt& Kovacs, Krisztina& Reczey, Kati& Zacchi, Guido. Process Design and Economics of On-Site Cellulase Production on Various Carbon Sources in a Softwood-Based Ethanol Plant. Enzyme Research. 2010. Vol. 2010, no. 2010, pp.1-8.
https://search.emarefa.net/detail/BIM-494384
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-494384