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http://dx.doi.org/10.6112/kscfe.2011.16.2.094

THE FAST PYROLYSIS CHARACTERISTICS OF LIGNOCELLULOSIC BIOMASS IN A BUBBLING FLUIDIZED BED REACTOR  

Choi, Hang-Seok (한국기계연구원, 그린환경기계연구본부)
Publication Information
Journal of computational fluids engineering / v.16, no.2, 2011 , pp. 94-101 More about this Journal
Abstract
The fast pyrolysis characteristics of lignocellulosic biomass are investigated for a bubbling fluidized bed reactor by means of computational fluid dynamics (CFD). To simulate multiphase reacting flows for gases and solids, an Eulerian-Eulerian approach is applied. Attention is paid for the primary and secondary reactions affected by gas-solid flow field. From the result, it is scrutinized that fast pyrolysis reaction is promoted by chaotic bubbling motion of the multiphase flow enhancing the mixing of solid particles. In particular, vortical flow motions around gas bubbles play an important role for solid mixing and consequent fast pyrolysis reaction. Discussion is made for the time-averaged pyrolysis reaction rates together with time-averaged flow quantities which show peculiar characteristics according to local transverse location in a bubbling fluidized bed reactor.
Keywords
Lignocellulosic biomass; Fast pyrolysis; Fluidized Bed; Multiphase Flow; Mixing;
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Times Cited By KSCI : 1  (Citation Analysis)
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