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Combustion of seaweed: A fuel design strategy
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
Thermochemical Energy Conversion Laboratory (TEC-Lab), Department of Applied Physics and Electronics, Umeå University.
Department of Marine Sciences - Tjärnö, University of Gothenburg.
Department of Marine Sciences - Tjärnö, University of Gothenburg.
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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 be used for thermal energy conversion. This paper suggests an approach where detailed information on ash composition and predicted ash formation reactions are basis for successful remedies enabling the use of fuels considered to 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 reactor and ash samples were analyzed by SEM-EDS and XRD. The results showed that Ca from the seaweed was very reactive and thus efficient in solving the silicate melting problems. The fuel design approach was proven successful and the potential for using otherwise difficult seaweed fuels in synergetic co-combustion was demonstrated.

Place, publisher, year, edition, pages
2017. Vol. 165, 155-161 p.
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-63481DOI: 10.1016/j.fuproc.2017.04.017OAI: oai:DiVA.org:ltu-63481DiVA: diva2:1097113
Note

Validerad;2017;Nivå 2;2017-06-09 (andbra)

Available from: 2017-05-22 Created: 2017-05-22 Last updated: 2017-06-09Bibliographically approved

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