<div class="csl-bib-body">
<div class="csl-entry">Priscak, J., Fürsatz, K., Kuba, M., Skoglund, N., Benedikt, F., & Hofbauer, H. (2020). Investigation of the Formation of Coherent Ash Residues during Fluidized Bed Gasification of Wheat Straw Lignin. <i>Energies</i>, <i>13</i>(15), 1–16. https://doi.org/10.3390/en13153935</div>
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dc.identifier.issn
1996-1073
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/20157
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dc.description.abstract
Thermal conversion of ash-rich fuels in fluidized bed systems is often associated with extensive operation problems caused by the high amount of reactive inorganics. This paper investigates the behavior of wheat straw lignin—a potential renewable fuel for dual fluidized bed gasification. The formation of coherent ash residues and its impact on the operation performance has been investigated and was supported by thermochemical equilibrium calculations in FactSage 7.3. The formation of those ash residues, and their subsequent accumulation on the surface of the fluidized bed, causes temperature and pressure fluctuations, which negatively influence the steady-state operation of the fluidized bed process. This paper presents a detailed characterization of the coherent ash residues, which consists mostly of silica and partially molten alkali silicates. Furthermore, the paper gives insights into the formation of these ash residues, dependent on the fuel pretreatment (pelletizing) of the wheat straw lignin, which increases their stability compared to the utilization of non-pelletized fuel.
en
dc.language.iso
en
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dc.publisher
MDPI
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dc.relation.ispartof
Energies
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dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
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dc.subject
Fluidized bed conversion
en
dc.subject
combustion
en
dc.subject
gasification
en
dc.subject
wheat straw lignin
en
dc.subject
ash formation
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dc.title
Investigation of the Formation of Coherent Ash Residues during Fluidized Bed Gasification of Wheat Straw Lignin
en
dc.type
Article
en
dc.type
Artikel
de
dc.rights.license
Creative Commons Namensnennung 4.0 International
de
dc.rights.license
Creative Commons Attribution 4.0 International
en
dc.contributor.affiliation
Department of Applied Physics and Electronics, Thermochemical Energy Conversion Laboratory, Umeå University, SE 901 87, Umeå, Sweden