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Local production of bioethanol to meet the growing demands of a regional transport system
Mälardalen University, School of Sustainable Development of Society and Technology.
Mälardalen University, School of Sustainable Development of Society and Technology.ORCID iD: 0000-0002-3485-5440
Mälardalen University, School of Sustainable Development of Society and Technology.ORCID iD: 0000-0003-0300-0762
Mälardalen University, School of Sustainable Development of Society and Technology.ORCID iD: 0000-0001-9230-1596
2011 (English)In: Proceedings of World Renewable Energy Congress 2011, May 2011, Linköping, Sweden, 2011Conference paper, Published paper (Refereed)
Abstract [en]

: Energy security and the mitigation of greenhouse gas emissions (GHG) are the driving forces behind the development of renewable fuel sources worldwide. In Sweden, a relatively rapid development in bioethanol usage in transportation has been driven by the implementation of national taxation regulations on carbon neutral transport fuels. The demand for bioethanol to fuel transportation is growing and cannot be met through current domestic production alone. Lignocellulosic ethanol derived from agricultural crop residues may be a feasible alternative source of ethanol to secure a consistent regional fuel supply in Swedish climatic conditions. This paper analyzes how the regional energy system can contribute to reducing CO2 emissions by realizing local small scale bioethanol production and substituting petrol fuel with high blend ethanol mixtures for private road transport. The results show that about 13 000 m3 of bioethanol can be produced from the straw available in the studied region and that this amount can meet the current regional ethanol fuel demand. Replacing the current demand for petrol fuel for passenger cars with ethanol fuel can potentially reduce CO2 emissions from transportation by 48%.

Place, publisher, year, edition, pages
2011.
National Category
Other Engineering and Technologies
Identifiers
URN: urn:nbn:se:mdh:diva-13197OAI: oai:DiVA.org:mdh-13197DiVA: diva2:452080
Conference
World Renewable Energy Congress 2011, May 2011, Linköping, Sweden
Available from: 2011-10-27 Created: 2011-10-27 Last updated: 2016-01-11Bibliographically approved
In thesis
1. Lignocellulosic Ethanol Production Potential and Regional Transportation Fuel Demand
Open this publication in new window or tab >>Lignocellulosic Ethanol Production Potential and Regional Transportation Fuel Demand
2011 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Road traffic dominates in domestic Swedish transportation and is highly dependent on fossil fuels, petrol and diesel. Currently, the use of renewable fuels in transportation accounts for less than 6% of the total energy use in transport. The demand for bioethanol to fuel transportation is growing and cannot be met through current domestic production alone. Lignocellulosic ethanol derived from agricultural crop residues may be a feasible alternative source of ethanol for securing a consistent regional fuel supply in Swedish climatic conditions.

 This licentiate thesis focuses on regional transport fuel supply by considering local small-scale ethanol production from straw. It presents the results of investigations of regional transport fuel supply with respect to minimising regional CO2 emissions, cost estimates for transport fuel supply, and the availability of lignocellulosic resources for small-scale ethanol production. Regional transport fuel demand between the present and 2020 is also estimated. The results presented here show that significant bioethanol can be produced from the straw and Salix available in the studied regions and that this is sufficient to meet the regions’ current ethanol fuel demand.

 A cost optimisation model for regional transport fuel supply is developed and applied for two cases in one study region, one when the ethanol production plant is integrated with an existing CHP plant (polygeneration), and one with a standalone ethanol production plant. The results of the optimisation model show that in both cases the changes in ethanol production costs have the biggest influence on the cost of supplying the regional passenger car fleet with transport fuel, followed by the petrol price and straw production costs.

 By integrating the ethanol production process with a CHP plant, the costs of supplying regional passenger car fleet with transport fuel can be reduced by up to a third. Moreover, replacing petrol fuel with ethanol can cut regional CO2 emissions from transportation by half.

Place, publisher, year, edition, pages
Västerås: Mälardalens högskola, 2011
Series
Mälardalen University Press Licentiate Theses, ISSN 1651-9256 ; 143
Keyword
Agricultural by-products, Straw, Bioethanol, Transport system, Greenhouse gases (GHG), Polygeneration system, Combined Heat and Power (CHP), Mixed Integer Programming (MIP).
National Category
Natural Sciences Engineering and Technology
Research subject
Energy- and Environmental Engineering
Identifiers
urn:nbn:se:mdh:diva-13176 (URN)978-91-7485-044-4 (ISBN)
Presentation
2011-12-09, Lambda, Mälardalens högskola, Västerås, 10:00 (English)
Opponent
Supervisors
Available from: 2011-10-27 Created: 2011-10-25 Last updated: 2011-11-28Bibliographically approved

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CiteExportLink to record
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Citation style
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