Modified CPD Model for Coal Devolatilization at UCTT Conditions

Update item information
Publication Type Journal Article
School or College College of Engineering
Department Chemical Engineering
Creator Eddings, Eric
Other Author Ding Wang; Thomas H. Fletcher; Swomitra Mohanty; Haoquan Hu
Title Modified CPD Model for Coal Devolatilization at UCTT Conditions
Date 2019
Description To study coal pyrolysis behavior at underground coal thermal treatment (UCTT) conditions, a modified CPD (M-CPD) model was developed and evaluated using two scales of experiments as well as two different coals, Utah Sufco and Illinois #6. Compared with the original CPD model, three major aspects were changed, including (1) rewriting the algorithm using MATLAB built-in functions; (2) developing a correlation method between coal elemental composition and the initial functional group population to calculate the effect of cross-linking on the lattice structure; and (3) using a two-activation energy approach for gas generation kinetics modeling. Results predicted by the M-CPD model were compared with those from the CPD model and experiments, and reasons for observed differences between the two models and the experimental data are discussed. The instantaneous devolatilization rates and yields of total volatiles and tars predicted by the M-CPD model were in good agreement with experimental data obtained at UCTT conditions.
Type Text
Publisher American Chemical Society
Journal Title Energy Fuels
Volume 33
Issue 4
First Page 2981
Last Page 2993
DOI https://doi.org/10.1021/acs.energyfuels.8b04425
Subject Coal; pyrolysis; modeling; underground heating
Language eng
Rights Management (c) American Chemical Society
Format Medium application/pdf
ARK ark:/87278/s6qs06h5
Setname ir_uspace
Date Created 2020-04-21
Date Modified 2020-04-21
ID 1542019
Reference URL https://collections.lib.utah.edu/ark:/87278/s6qs06h5
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