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Comprehensive secondary pyrolysis in fluidized-bed fast pyrolysis of biomass, a fluid dynamics based modelling effort
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Energy and Furnace Technology.ORCID iD: 0000-0002-8045-6344
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Energy and Furnace Technology.ORCID iD: 0000-0002-1837-5439
2015 (English)In: 12TH INTERNATIONAL CONFERENCE ON COMBUSTION & ENERGY UTILISATION / [ed] Jiang, X; Joyce, M; Xia, D, 2015, Vol. 66, 281-284 p.Conference paper, Published paper (Refereed)
Abstract [en]

Homogenous secondary pyrolysis is category of reactions following the primary pyrolysis and presumed important for fast pyrolysis. For the comprehensive chemistry and fluid dynamics, a probability density functional (PDF) approach is used; with a kinetic scheme comprising 134 species and 4169 reactions being implemented. With aid of acceleration techniques, most importantly Dimension Reduction, Chemistry Agglomeration and In-situ Tabulation (ISAT), a solution within reasonable time was obtained. More work is required; however, a solution for levoglucosan (C6H10O5) being fed through the inlet with fluidizing gas at 500 degrees C, has been obtained. 88.6 % of the levoglucosan remained non-decomposed, and 19 different decomposition product species were found above 0.01 % by weight. A homogenous secondary pyrolysis scheme proposed can thus be implemented in a CFD environment and acceleration techniques can speed-up the calculation for application in engineering settings.

Place, publisher, year, edition, pages
2015. Vol. 66, 281-284 p.
Series
Energy Procedia, ISSN 1876-6102
Keyword [en]
Secondary Pyrolysis, Fast pyrolysis, CFD, Bio oil, Biomass
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-173993DOI: 10.1016/j.egypro.2015.02.057ISI: 000360761400071Scopus ID: 2-s2.0-84948414083OAI: oai:DiVA.org:kth-173993DiVA: diva2:858206
Conference
12th International Conference on Combustion and Energy Utilisation (ICCEU), SEP 29-OCT 03, 2014, Lancaster, ENGLAND
Note

QC 20151001

Available from: 2015-10-01 Created: 2015-09-24 Last updated: 2015-10-01Bibliographically approved

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Mellin, PelleYang, Weihong

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