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Exposure of refractory materials during high-temperature gasification of a woody biomass and peat mixture
Umeå University, Sweden.
RISE - Research Institutes of Sweden, Bioeconomy, ETC Energy Technology Center.
Luleå University of Technology, Sweden.
Umeå University, Sweden.
Show others and affiliations
2018 (English)In: Journal of the European Ceramic Society, ISSN 0955-2219, E-ISSN 1873-619X, Vol. 38, no 2, p. 777-787Article in journal (Refereed) Published
Abstract [en]

Finding resilient refractory materials for slagging gasification systems have the potential to reduce costs and improve the overall plant availability by extending the service life. In this study, different refractory materials were evaluated under slagging gasification conditions. Refractory probes were continuously exposed for up to 27 h in an atmospheric, oxygen blown, entrained flow gasifier fired with a mixture of bark and peat powder. Slag infiltration depth and microstructure were studied using SEM EDS. Crystalline phases were identified with powder XRD. Increased levels of Al, originating from refractory materials, were seen in all slags. The fused cast materials were least affected, even though dissolution and slag penetration could still be observed. Thermodynamic equilibrium calculations were done for mixtures of refractory and slag, from which phase assemblages were predicted and viscosities for the liquid parts were estimated. © 2017 Elsevier Ltd

Place, publisher, year, edition, pages
2018. Vol. 38, no 2, p. 777-787
Keywords [en]
Biomass, Entrained flow, Gasification, Oxygen blown, Refractory, Slag, Mixtures, Peat, Slags, Crystalline phasis, Entrained flow gasifiers, High-temperature gasification, Oxygen-blown, Phase assemblages, Plant availability, Thermodynamic equilibrium calculation, Refractory materials
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Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-33235DOI: 10.1016/j.jeurceramsoc.2017.09.016Scopus ID: 2-s2.0-85029532285OAI: oai:DiVA.org:ri-33235DiVA, id: diva2:1182395
Note

 Funding details: Bio4Gasification, Energimyndigheten; Funding text: This work has been founded by the Swedish Energy Agency through Bio4Gasification.

Available from: 2018-02-13 Created: 2018-02-13 Last updated: 2018-03-16Bibliographically approved

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Winikka, Henrik

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