Computational fluid dynamics modeling of biomass fast pyrolysis in a fluidized bed reactor, using a comprehensive chemistry scheme
2014 (English)In: Fuel, ISSN 0016-2361, Vol. 117, no Part A, 704-715 p.Article in journal (Refereed) Published
The CFD modeling for fast pyrolysis has previously focused on the major pyrolysis products; liquid, charand gas. This paper introduces a new approach to biomass pyrolysis; integrating a complex scheme of reactions including formation of such components as levoglucosan. The 3-D simulation takes into account the complex breakdown of each biomass subcomponent, the ﬂuid dynamics of the process as well as the heat and momentum transfer of three Eulerian phases.
The pyrolysis products include reference species that reﬂects the composition of the bio oil, gas fraction and char fraction. A number of reactions are in addition applied to account for the thermal cracking of tar compounds and the ﬁnal compositions are compared to experimental yields. The results show that the predicted pyrolysis products reﬂect the experimental yields satisfactorily, apart from the water content which is under predicted. Most importantly though, the approach is computationally feasible and it should be useful for future work.
Place, publisher, year, edition, pages
Elsevier, 2014. Vol. 117, no Part A, 704-715 p.
CFD, Fluidized bed, Fast pyrolysis, Pyrolysis oil, Pyrolysis
Chemical Process Engineering
IdentifiersURN: urn:nbn:se:kth:diva-133716DOI: 10.1016/j.fuel.2013.09.009ISI: 000327766900081ScopusID: 2-s2.0-84886829805OAI: oai:DiVA.org:kth-133716DiVA: diva2:662944
FunderSwedish Energy Agency, 33284-1
QC 201311282013-11-082013-11-082015-08-27Bibliographically approved