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Exposure of refractory materials during high-temperature gasification of a woody biomass and peat mixture
Energy Technology and Thermal Process Chemistry, Department of Applied Physics and Electronics, Umeå University.
RISE Energy Technology Center.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0002-0555-5924
Energy Technology and Thermal Process Chemistry, Department of Applied Physics and Electronics, Umeå University.
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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.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 38, no 2, p. 777-787
Keywords [en]
Gasification, Oxygen blown, Biomass, Entrained flow, Slag, Refractory
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-65625DOI: 10.1016/j.jeurceramsoc.2017.09.016ISI: 000418211000047Scopus ID: 2-s2.0-85029532285OAI: oai:DiVA.org:ltu-65625DiVA, id: diva2:1141024
Note

Validerad;2017;Nivå 2;2017-11-22 (rokbeg)

Available from: 2017-09-13 Created: 2017-09-13 Last updated: 2018-05-28Bibliographically approved

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Ma, CharlieLandälv, IngvarWiinikka, Henrik

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