Journal
FUEL
Volume 82, Issue 13, Pages 1633-1644Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0016-2361(03)00108-X
Keywords
modeling; biomass; pyrolysis
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A detailed computational model of pyrolysis of a moist, shrinking biomass particle is presented. This model is used to examine the effect of varying the moisture content for a single shrinking biomass particle subjected to a constant external temperature. Particle half-thicknesses ranging from 5 mum to 2 cm, temperatures from 800 to 2000 K, moisture contents from 0 to 30% (dry basis), and shrinkage factors from 1.0 to 0.4 are examined. The impact of moisture content and shrinkage was found to be a function of pyrolysis regime. In general, coupling between moisture content and shrinkage was found to result in longer pyrolysis times than if they were considered separately. Additionally, coupling between moisture content and shrinkage increased tar yield and decreased light hydrocarbon yield compared to considering moisture and shrinkage separately. (C) 2003 Elsevier Science Ltd. All rights reserved.
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