Prediction of Light Gas Composition in Coal Devolatilization

The chemical percolation devolatilization (CPD) model describes the devolatilization behavior of rapidly heated coal based on the chemical structure of the coal. It predicts the overall char, tar, and light gas yields. This paper presents an improved CPD model with improved capability for predicting...

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Bibliographic Details
Published in:Energy & fuels 2009-06, Vol.23 (6), p.3063-3067
Main Authors: Jupudi, Ravichandra S, Zamansky, Vladimir, Fletcher, Thomas H
Format: Article
Language:English
Subjects:
01 COAL, LIGNITE, AND PEAT
COAL
DEVOLATILIZATION
Fossil Fuels
GAS YIELDS
KINETICS
MATHEMATICAL MODELS
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Summary:The chemical percolation devolatilization (CPD) model describes the devolatilization behavior of rapidly heated coal based on the chemical structure of the coal. It predicts the overall char, tar, and light gas yields. This paper presents an improved CPD model with improved capability for predicting light gas composition. This is achieved by incorporating a kinetic model that simulates the release of various light gas species from their respective sources/functional groups in coal. The improved CPD model is validated using experiments with a wire mesh reactor and published experimental observations.
ISSN:0887-0624
1520-5029
DOI:10.1021/ef9001346