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Biogas production from crop residues on a farm-scale level in Sweden: scale, choice of substrate and utilisation rate most important parameters for financial feasibility

Svensson, L M ; Christensson, Kjell LU and Björnsson, Lovisa LU (2006) In Bioprocess and Biosystems Engineering 29(2). p.137-142
Abstract
Anaerobic digestion would enable the energy potential of agricultural crop residues such as ley crops and sugar beet tops to be harnessed in Sweden. In the present study, the financial prospects of single-stage fed-batch high-solids digestion on three different scales, 51, 67, and 201 kW, were calculated on the basis of experimental results and observations. In addition to scale, the effects of methane yield and fertiliser recovery (compared to green manuring) was investigated by testing different substrate mixtures. The biogas was disposed as heat, combined heat and power, or as vehicle fuel. Besides the positive effect of scale, the results indicate the importance of choosing substrates with a high methane yield and high nitrogen... (More)
Anaerobic digestion would enable the energy potential of agricultural crop residues such as ley crops and sugar beet tops to be harnessed in Sweden. In the present study, the financial prospects of single-stage fed-batch high-solids digestion on three different scales, 51, 67, and 201 kW, were calculated on the basis of experimental results and observations. In addition to scale, the effects of methane yield and fertiliser recovery (compared to green manuring) was investigated by testing different substrate mixtures. The biogas was disposed as heat, combined heat and power, or as vehicle fuel. Besides the positive effect of scale, the results indicate the importance of choosing substrates with a high methane yield and high nitrogen content, and the necessity of fully utilising both the capacity of the equipment installed and the energy carriers produced. Net unit costs of 5.3 and 8.1 Euroct/kWh were achieved (201 kW), heat and vehicle fuel, respectively. (Less)
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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
crop residues, high-solids anaerobic digestion, farm-scale, economy, organic farming
in
Bioprocess and Biosystems Engineering
volume
29
issue
2
pages
137 - 142
publisher
Springer
external identifiers
  • pmid:16770592
  • wos:000238774000007
  • scopus:33745712134
  • pmid:16770592
ISSN
1615-7605
DOI
10.1007/s00449-006-0064-1
language
English
LU publication?
yes
id
2bda6fca-b654-4a2a-af6f-1c76199e0173 (old id 404644)
date added to LUP
2016-04-01 16:20:13
date last changed
2021-06-23 04:59:40
@article{2bda6fca-b654-4a2a-af6f-1c76199e0173,
  abstract     = {Anaerobic digestion would enable the energy potential of agricultural crop residues such as ley crops and sugar beet tops to be harnessed in Sweden. In the present study, the financial prospects of single-stage fed-batch high-solids digestion on three different scales, 51, 67, and 201 kW, were calculated on the basis of experimental results and observations. In addition to scale, the effects of methane yield and fertiliser recovery (compared to green manuring) was investigated by testing different substrate mixtures. The biogas was disposed as heat, combined heat and power, or as vehicle fuel. Besides the positive effect of scale, the results indicate the importance of choosing substrates with a high methane yield and high nitrogen content, and the necessity of fully utilising both the capacity of the equipment installed and the energy carriers produced. Net unit costs of 5.3 and 8.1 Euroct/kWh were achieved (201 kW), heat and vehicle fuel, respectively.},
  author       = {Svensson, L M and Christensson, Kjell and Björnsson, Lovisa},
  issn         = {1615-7605},
  language     = {eng},
  number       = {2},
  pages        = {137--142},
  publisher    = {Springer},
  series       = {Bioprocess and Biosystems Engineering},
  title        = {Biogas production from crop residues on a farm-scale level in Sweden: scale, choice of substrate and utilisation rate most important parameters for financial feasibility},
  url          = {http://dx.doi.org/10.1007/s00449-006-0064-1},
  doi          = {10.1007/s00449-006-0064-1},
  volume       = {29},
  year         = {2006},
}