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A Generalized Biomass Pyrolysis Model Based on Superimposed Cellulose, Hemicelluloseand Liqnin Kinetics

Miller, R. S. and Bellan, J. (1997) A Generalized Biomass Pyrolysis Model Based on Superimposed Cellulose, Hemicelluloseand Liqnin Kinetics. Combustion Science and Technology, 126 (1-6). pp. 97-137. ISSN 0010-2202. doi:10.1080/00102209708935670.

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The pyrolysis of general biomass materials is modeled via a superposition of cellulose, hemi-cellulose and lignin kinetics. All three of the primary biomass components are modeled with multi-step kinetics involving both competetive primary pyrolysis and secondary tar decomposition reactions. Only “typical” (untreated) feedstocks are considered at atmospheric pyrolysis pressures. The kinetics scheme is then coupled to the porous particle model of Miller and Bellan (1996) along with appropriate properties and heats of reaction to provide a complete model for the pyrolysis of arbitrary biomass feedstocks and sample sizes. Comparisons with past isothermal and thermogravimetry experiments for a variety of biomass materials under both kinetically controlled and diffusion limited conditions show favorable agreement with the model predictions. In addition, discussions are provided which support the use of competetive char production kinetics over single and successive reaction schems which cannot currently be reconciled with observed pyrolysis behavior.

Item Type:Article
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Bellan, J.0000-0001-9218-7017
Additional Information:© 1997 Taylor & Francis. Received 17 Jun 1996, Accepted 17 Feb 1997.
Subject Keywords:Biomass, modeling, porous particle, pyrolysis, wood
Issue or Number:1-6
Record Number:CaltechAUTHORS:20171025-075242108
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:82643
Deposited By: Tony Diaz
Deposited On:25 Oct 2017 15:57
Last Modified:15 Nov 2021 19:52

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