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Possibilities for sustainable biorefineries based on agricultural residues - A case study of potential straw-based ethanol production in Sweden

Ekman, Anna LU ; Wallberg, Ola LU ; Joelsson, Elisabeth LU and Börjesson, Pål LU (2013) In Applied Energy 102. p.299-308
Abstract
This study presents a survey of the most important techno-economic factors for the implementation of biorefineries based on agricultural residues, in the form of straw, and biochemical conversion into ethanol and biogas, together with production of electricity and heat. The paper suggests locations where the necessary conditions can be met in Sweden. The requirements identified are regional availability of feedstock, the possibility to integrate with external heat sinks, appropriate process design and the scale of the plant. The scale of the plant should be adapted to the potential, regional, raw-material supply, but still be large enough to give economies of scale. The integration with heat sinks proved to be most important to achieve... (More)
This study presents a survey of the most important techno-economic factors for the implementation of biorefineries based on agricultural residues, in the form of straw, and biochemical conversion into ethanol and biogas, together with production of electricity and heat. The paper suggests locations where the necessary conditions can be met in Sweden. The requirements identified are regional availability of feedstock, the possibility to integrate with external heat sinks, appropriate process design and the scale of the plant. The scale of the plant should be adapted to the potential, regional, raw-material supply, but still be large enough to give economies of scale. The integration with heat sinks proved to be most important to achieve high energy-efficiency, but it was of somewhat less importance for the profitability. Development of pentose fermentation, leading to higher ethanol yields, was important to gain high profitability. Promising locations were identified in the county of Ostergotland where integration with an existing 1st generation ethanol plant and district heating systems (DHSs) is possible, and in the county of Skane where both a significant, potential straw supply and integration potential with DHSs are available. (c) 2012 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Biorefinery, Agricultural residues, Ethanol, Biogas, Techno-economic, assessment, District heating
in
Applied Energy
volume
102
pages
299 - 308
publisher
Elsevier
external identifiers
  • wos:000314190800035
  • scopus:84870740322
ISSN
1872-9118
DOI
10.1016/j.apenergy.2012.07.016
language
English
LU publication?
yes
id
29da1bc8-3de6-42e8-8260-c168aca04667 (old id 3589901)
date added to LUP
2013-03-20 10:10:50
date last changed
2019-01-06 07:44:48
@article{29da1bc8-3de6-42e8-8260-c168aca04667,
  abstract     = {This study presents a survey of the most important techno-economic factors for the implementation of biorefineries based on agricultural residues, in the form of straw, and biochemical conversion into ethanol and biogas, together with production of electricity and heat. The paper suggests locations where the necessary conditions can be met in Sweden. The requirements identified are regional availability of feedstock, the possibility to integrate with external heat sinks, appropriate process design and the scale of the plant. The scale of the plant should be adapted to the potential, regional, raw-material supply, but still be large enough to give economies of scale. The integration with heat sinks proved to be most important to achieve high energy-efficiency, but it was of somewhat less importance for the profitability. Development of pentose fermentation, leading to higher ethanol yields, was important to gain high profitability. Promising locations were identified in the county of Ostergotland where integration with an existing 1st generation ethanol plant and district heating systems (DHSs) is possible, and in the county of Skane where both a significant, potential straw supply and integration potential with DHSs are available. (c) 2012 Elsevier Ltd. All rights reserved.},
  author       = {Ekman, Anna and Wallberg, Ola and Joelsson, Elisabeth and Börjesson, Pål},
  issn         = {1872-9118},
  keyword      = {Biorefinery,Agricultural residues,Ethanol,Biogas,Techno-economic,assessment,District heating},
  language     = {eng},
  pages        = {299--308},
  publisher    = {Elsevier},
  series       = {Applied Energy},
  title        = {Possibilities for sustainable biorefineries based on agricultural residues - A case study of potential straw-based ethanol production in Sweden},
  url          = {http://dx.doi.org/10.1016/j.apenergy.2012.07.016},
  volume       = {102},
  year         = {2013},
}