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- W149892978 abstract "A mathematical model of wood pyrolysis is presented that is in satisfactory agreement with experimental reaction product distributions over a range of conditions of practical importance for gasification and combustion. Both chemical and physical processes are described using fundamental principles. Inclusion of water release and char deposition chemical reactions results in predictions of ultimate product distributions (gas, tar, and char yields) that are in good agreement with experiment and can aid in optimization of processes to maximize or minimize tar production. Predictions of products instantaneously released from a single wood pellet are in fair agreement with experiment. Computational difficulties are encountered for the cases with the steepest temperature gradients. Previous studies using a complex kinetic mechanism and heat transfer in a wood slab made no comparison to experimental results. Thus, this study provides both a data base and a fundamental modeling approach that will enhance the understanding of the effects of physical properties and processes on the chemistry of devolatilizing biomass. Presentation of sensitivity analyses and further verification comparisons of the model are presented in a forthcoming article. Currently, pyrolysis product distribution as a function of particle size can be predicted only for the 1-D case. Extension of the modelmore » and experiments to realistic cases using 2-D samples is planned.« less" @default.
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- W149892978 date "1983-01-01" @default.
- W149892978 modified "2023-09-28" @default.
- W149892978 title "Modeling of physical and chemical processes during pyrolysis of a large biomass pellet with experimental verification" @default.
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