Impact of impregnation time and chip size on sugar yield in pretreatment of softwood for ethanol production.
(2009) In Bioresource Technology 100(24). p.6312-6316- Abstract
- Efficient pretreatment is necessary to make the wood-to-ethanol process more feasible. In this study, chips of different sizes were impregnated with SO(2) and steam-pretreated. Dilute-acid pretreatment together with subsequent enzymatic hydrolysis resulted in solubilization of between 69% and 73% of the fermentable sugars (glucose and mannose) in the raw material for the combinations of impregnation times and chip sizes investigated. Shorter impregnation times resulted in slightly lower mannose yields for the larger chips, probably due to poor diffusion of the catalyst. Small differences in glucose yield after enzymatic hydrolysis showed that the overall glucose yield was slightly higher for the smaller chips, however, whether the... (More)
- Efficient pretreatment is necessary to make the wood-to-ethanol process more feasible. In this study, chips of different sizes were impregnated with SO(2) and steam-pretreated. Dilute-acid pretreatment together with subsequent enzymatic hydrolysis resulted in solubilization of between 69% and 73% of the fermentable sugars (glucose and mannose) in the raw material for the combinations of impregnation times and chip sizes investigated. Shorter impregnation times resulted in slightly lower mannose yields for the larger chips, probably due to poor diffusion of the catalyst. Small differences in glucose yield after enzymatic hydrolysis showed that the overall glucose yield was slightly higher for the smaller chips, however, whether the increased energy demand and cost of size reduction is compensated for by the higher yield, requires techno-economical evaluations. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1469893
- author
- Monavari, Sanam LU ; Galbe, Mats LU and Zacchi, Guido LU
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Bioresource Technology
- volume
- 100
- issue
- 24
- pages
- 6312 - 6316
- publisher
- Elsevier
- external identifiers
-
- wos:000270147700025
- pmid:19665888
- scopus:69049086482
- pmid:19665888
- ISSN
- 1873-2976
- DOI
- 10.1016/j.biortech.2009.06.097
- language
- English
- LU publication?
- yes
- id
- 24357ac2-16d7-4198-bee4-d7c1265b915f (old id 1469893)
- date added to LUP
- 2016-04-01 13:05:41
- date last changed
- 2023-11-12 11:59:49
@article{24357ac2-16d7-4198-bee4-d7c1265b915f,
abstract = {{Efficient pretreatment is necessary to make the wood-to-ethanol process more feasible. In this study, chips of different sizes were impregnated with SO(2) and steam-pretreated. Dilute-acid pretreatment together with subsequent enzymatic hydrolysis resulted in solubilization of between 69% and 73% of the fermentable sugars (glucose and mannose) in the raw material for the combinations of impregnation times and chip sizes investigated. Shorter impregnation times resulted in slightly lower mannose yields for the larger chips, probably due to poor diffusion of the catalyst. Small differences in glucose yield after enzymatic hydrolysis showed that the overall glucose yield was slightly higher for the smaller chips, however, whether the increased energy demand and cost of size reduction is compensated for by the higher yield, requires techno-economical evaluations.}},
author = {{Monavari, Sanam and Galbe, Mats and Zacchi, Guido}},
issn = {{1873-2976}},
language = {{eng}},
number = {{24}},
pages = {{6312--6316}},
publisher = {{Elsevier}},
series = {{Bioresource Technology}},
title = {{Impact of impregnation time and chip size on sugar yield in pretreatment of softwood for ethanol production.}},
url = {{http://dx.doi.org/10.1016/j.biortech.2009.06.097}},
doi = {{10.1016/j.biortech.2009.06.097}},
volume = {{100}},
year = {{2009}},
}