Comprehensive secondary pyrolysis in fluidized-bed fast pyrolysis of biomass, a fluid dynamics based modelling effort
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 (Refereed)
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.
, Energy Procedia, ISSN 1876-6102
Secondary Pyrolysis, Fast pyrolysis, CFD, Bio oil, Biomass
IdentifiersURN: urn:nbn:se:kth:diva-173993DOI: 10.1016/j.egypro.2015.02.057ISI: 000360761400071ScopusID: 2-s2.0-84948414083OAI: oai:DiVA.org:kth-173993DiVA: diva2:858206
12th International Conference on Combustion and Energy Utilisation (ICCEU), SEP 29-OCT 03, 2014, Lancaster, ENGLAND
QC 201510012015-10-012015-09-242015-10-01Bibliographically approved