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Combustion of seaweed: a fuel design strategy
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics. Energy Engineering, Department of Engineering Sciences & Mathematics, Luleå University of Technology, Luleå, Sweden. (Thermochemical Energy Conversion Laboratory)ORCID iD: 0000-0002-5777-9241
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics. (Thermochemical Energy Conversion Laboratory)
University of Gothenburg, Department of Marine Sciences - Tjärnö.
University of Gothenburg, Department of Marine Sciences - Tjärnö.
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2017 (English)In: Fuel processing technology, ISSN 0378-3820, E-ISSN 1873-7188, Vol. 165, 155-161 p.Article in journal (Refereed) Published
Abstract [en]

The high ash content and varying ash composition in algal biomass is often mentioned as problematic if to beused for thermal energy conversion. This paper suggests an approach where detailed information on ash compositionand predicted ash formation reactions are basis for successful remedies enabling the use of fuels consideredto be difficult. The procedure is demonstrated on seaweed (Saccharina latissima) cultivated for biorefinery purposes. The ash composition of the seaweed was found suitable for co-combustion with Miscanthus x giganteus, an energy crop high in alkali and silicon. Fuel mixtures were combusted in a bubbling fluidized bed reactorand ash samples were analyzed by SEM-EDS and XRD. The results showed that Ca from the seaweed was veryreactive and thus efficient in solving the silicatemelting problems. The fuel design approach was proven successfuland the potential for using otherwise difficult seaweed fuels in synergetic co-combustion was demonstrated.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 165, 155-161 p.
National Category
Energy Engineering Other Chemistry Topics Inorganic Chemistry
Identifiers
URN: urn:nbn:se:umu:diva-135718DOI: 10.1016/j.fuproc.2017.04.017ISI: 000403987400019OAI: oai:DiVA.org:umu-135718DiVA: diva2:1105404
Funder
Bio4EnergySwedish Research Council Formas, 213-2013-92
Available from: 2017-06-03 Created: 2017-06-03 Last updated: 2017-07-10Bibliographically approved

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Skoglund, NilsWerner, KajsaBroström, Markus
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