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Reduction of CO2 emission and oil dependency with biomass-based polygeneration
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development. (Ecotechnology)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering and Sustainable Development. (Ecotechnology)
2010 (English)In: Biomass and Bioenergy, ISSN 0961-9534, E-ISSN 1873-2909, Vol. 34, no 7, p. 967-984Article in journal (Refereed) Published
Abstract [en]

We compare different options for the use of lignocellulosic biomass to reduce CO2 emission and oil use, focusing on polygeneration of biomass-based motor fuels and electricity, and discuss methodological issues related to such comparisons. The use of biomass can significantly reduce CO2 emission and oil use, but there is a trade-off between the reductions in CO2 emission and oil use. Bioelectricity from stand-alone plants replacing coal-based electricity reduced CO2 emission by 99 kg per GJ biomass input but gave no oil use reduction. Stand-alone produced methanol replacing diesel reduced the CO2 emission with 38 kg and the oil use with 0.67 GJ per GJ biomass, indicating that a potential CO2 emission reduction of 90 kg is lost per GJ oil reduced. CO2 emission and oil use reduction for alternatives co-producing fuel and electricity fall between the stand-alone alternatives. Plug-in hybrid-electric vehicles using bioelectricity reduced CO2 emission by 75–88 kg and oil use by 0.99–1.2 GJ, per GJ biomass input. Biomass can also reduce CO2 emission and/or oil use more efficiently if fossil-fuel-fired boilers or electric heating is replaced by district heating from biomass-based combined heat and power generation. This is also true if electricity or motor fuel is produced from black liquor gasification in pulp mills or if wood is used instead of concrete in building construction. Biomass gasification is an important technology to achieve large reductions, irrespective of whether CO2 emission or oil use reduction is prioritised.

 

Place, publisher, year, edition, pages
Elsevier , 2010. Vol. 34, no 7, p. 967-984
Keywords [en]
Biomass strategy; CO2 emission reduction; Reduced oil dependency; Polygeneration; Plug-in hybrid vehicles
National Category
Other Environmental Engineering
Identifiers
URN: urn:nbn:se:miun:diva-11336DOI: 10.1016/j.biombioe.2010.02.005ISI: 000279067000007Scopus ID: 2-s2.0-77954863173OAI: oai:DiVA.org:miun-11336DiVA, id: diva2:301071
Available from: 2010-03-02 Created: 2010-03-02 Last updated: 2017-12-12Bibliographically approved
In thesis
1. On Swedish bioenergy strategies to reduce CO2 emissions and oil use
Open this publication in new window or tab >>On Swedish bioenergy strategies to reduce CO2 emissions and oil use
2011 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Östersund: Mid Sweden University, 2011. p. 230
Series
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 111
Keywords
bioenergy, climate change mitigation, energy supply security, CO2 emissions, oil use, energy system analysis, transportation, building heating, pulp mills, Sweden
Identifiers
urn:nbn:se:miun:diva-13868 (URN)978-91-86694-46-3 (ISBN)
Public defence
2011-09-06, Q221, Mittuniversitetet, Östersund, 13:00 (English)
Opponent
Supervisors
Available from: 2011-06-09 Created: 2011-05-30 Last updated: 2012-08-03Bibliographically approved

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Joelsson, Jonas M.Gustavsson, Leif

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