Synergistic effect on thermal behavior during co-pyrolysis of lignocellulosic biomass model components blend with bituminous coal

•Co-pyrolysis behavior of lignocellulosic biomass components and bituminous coal was explored.•Positive and/or negative synergistic effects were observed during co-pyrolysis of the mixtures.•Kinetic parameter was solved via using model-free method (Kissinger–Akahira–Sunose).•Nonadditivity performanc...

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Bibliographic Details
Published in:Bioresource technology Vol. 169; pp. 220 - 228
Main Authors: Wu, Zhiqiang, Wang, Shuzhong, Zhao, Jun, Chen, Lin, Meng, Haiyu
Format: Journal Article
Language:English
Published: Kidlington Elsevier Ltd 01.10.2014
Elsevier
Subjects:
activation energy
Biological and medical sciences
Biomass
Biotechnology - methods
carbon footprint
cellulose
Cellulose - chemistry
Co-pyrolysis
Coal
Coal - analysis
Fundamental and applied biological sciences. Psychology
hemicellulose
Hot Temperature
Kinetics
lignin
Lignin - chemistry
lignocellulose
Lignocellulosic biomass
Polysaccharides - chemistry
prediction
pyrolysis
synergism
Synergistic effect
temperature
thermal properties
Thermogravimetry
Co-pyrolysis
Synergistic effect
Kinetics
Lignocellulosic biomass
Coal
Pyrolysis
Thermal behavior
Lignocellulosics
Biomass
Modeling
Synergism
Mixture
Bituminous coal
ISSN:0960-8524, 1873-2976, 1873-2976
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Summary:•Co-pyrolysis behavior of lignocellulosic biomass components and bituminous coal was explored.•Positive and/or negative synergistic effects were observed during co-pyrolysis of the mixtures.•Kinetic parameter was solved via using model-free method (Kissinger–Akahira–Sunose).•Nonadditivity performance on the activation energy values of the mixtures was observed. Co-thermochemical conversion of lignocellulosic biomass and coal has been investigated as an effective way to reduce the carbon footprint. Successful evaluating on thermal behavior of the co-pyrolysis is prerequisite for predicting performance and optimizing efficiency of this process. In this paper, pyrolysis and kinetics characteristics of three kinds of lignocellulosic biomass model components (cellulose, hemicellulose, and lignin) blended with a kind of Chinese bituminous coal were explored by thermogravimetric analyzer and Kissinger–Akahira–Sunose method. The results indicated that the addition of model compounds had different synergistic effects on thermal behavior of the bituminous coal. The cellulose showed positive synergistic effects on the thermal decomposition of the coal bituminous coal with lower char yield than calculated value. For hemicellulose and lignin, whether positive or negative synergistic was related to the mixed ratio and temperature range. The distribution of the average activation energy values for the mixtures showed nonadditivity performance.
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ISSN:0960-8524
1873-2976
1873-2976
DOI:10.1016/j.biortech.2014.06.105