Integration of energy, GHG and economic accounting to optimize biogas production based on co-digestion
Research output: Contribution to conference › Poster › Research › peer-review
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Integration of energy, GHG and economic accounting to optimize biogas production based on co-digestion. / Fitamo, Temesgen; Boldrin, Alessio; Raj Baral, Khagendra; Vazifehkhoran, Ali Heidarzadeh ; Jensen, Ida; Kjærgaard, Ida; Skovsgaard, Lise; Nguyen, Quan Van; Triolo, Jin M .
2015. Poster session presented at DTU's sustain conference, Lynby, Denmark.Research output: Contribution to conference › Poster › Research › peer-review
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T1 - Integration of energy, GHG and economic accounting to optimize biogas production based on co-digestion
AU - Fitamo, Temesgen
AU - Boldrin, Alessio
AU - Raj Baral, Khagendra
AU - Vazifehkhoran, Ali Heidarzadeh
AU - Jensen, Ida
AU - Kjærgaard, Ida
AU - Skovsgaard, Lise
AU - Nguyen, Quan Van
AU - Triolo, Jin M
PY - 2015
Y1 - 2015
N2 - Several countries have set a number of targets to boost energy production from renewable sources. Biogas production is expected to increase significantly over the next few decades and to play an important role in future energy systems. To achieve these ambitious targets, the biogas production has to be improved. Theeconomic and environmental performances of the biogas chain must be optimised to ensure viable and sustainable solutions. Different types of feedstock materials will have to be considered, including agriculturalresidues, agro-industrial residues and, to some extent, dedicated energy crops.In this study, we integrated three types of analysis - energetic, GHG and economic – in order to optimise biogas production from the co-digestion of pig slurry (PS) and sugar beet pulp silage (SB). We found that the energy and GHG balances are improved when utilising SB as a co-substrate, mainly because of increased energy production. However, the profitability of biogas production is negatively affected when utilising SB, because of the increased costs involved in feedstock supply. The scale of the processing plant is neutral in terms of profitability when SB is added. The results indicate that medium- to large-sized biogas plants, using low shares of SB co-substrate, may be the preferred solution.
AB - Several countries have set a number of targets to boost energy production from renewable sources. Biogas production is expected to increase significantly over the next few decades and to play an important role in future energy systems. To achieve these ambitious targets, the biogas production has to be improved. Theeconomic and environmental performances of the biogas chain must be optimised to ensure viable and sustainable solutions. Different types of feedstock materials will have to be considered, including agriculturalresidues, agro-industrial residues and, to some extent, dedicated energy crops.In this study, we integrated three types of analysis - energetic, GHG and economic – in order to optimise biogas production from the co-digestion of pig slurry (PS) and sugar beet pulp silage (SB). We found that the energy and GHG balances are improved when utilising SB as a co-substrate, mainly because of increased energy production. However, the profitability of biogas production is negatively affected when utilising SB, because of the increased costs involved in feedstock supply. The scale of the processing plant is neutral in terms of profitability when SB is added. The results indicate that medium- to large-sized biogas plants, using low shares of SB co-substrate, may be the preferred solution.
KW - Faculty of Science
KW - Biochain
KW - Biogas digestate
KW - Biogas optimization
M3 - Poster
T2 - DTU's sustain conference
Y2 - 17 December 2015 through 17 December 2015
ER -
ID: 169754209