Comprehensive Secondary Pyrolysis in Fluidized-bed Fast Pyrolysis of Biomass, a Fluid Dynamics Based Modelling Effort

Mellin, Pelle, Yang, Weihong and Yu, Xi (2015). Comprehensive Secondary Pyrolysis in Fluidized-bed Fast Pyrolysis of Biomass, a Fluid Dynamics Based Modelling Effort. Energy Procedia, 66 , pp. 281-284.

Abstract

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 oc, 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.

Publication DOI: https://doi.org/10.1016/j.egypro.2015.02.057
Divisions: Engineering & Applied Sciences > European Bioenergy Research Institute (EBRI)
Aston University (General)
Additional Information: 12th International Conference on Combustion & Energy Utilisation – 12ICCEU © 2014 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Uncontrolled Keywords: Bio oil,Biomass,CFD,Fast pyrolysis,Secondary Pyrolysis,Energy(all)
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Date: 2015
Authors: Mellin, Pelle
Yang, Weihong
Yu, Xi ( 0000-0003-3574-6032)

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