In this study, the pyrolysis process of 20 kinds of biomass samples in 3 types (stalk-type, wood-type and shell-type) was investigated with thermogravimetric analyzer, and the correlation of biomass pyrolysis property with biomass chemical structure was put forward. The results showed that the pyrolysis of the 20 kinds of biomass can be classified by types as the pyrolysis of stalk-type biomass had an overlapping decomposition peak of hemicellulose and cellulose at 317 °C. However, the pyrolysis of wood-type and shell-type biomass showed two separated peaks at low temperature and the cellulose peak was higher in wood-type biomass (365 °C) compared to shell-type biomass (348 °C). The different pyrolysis process mentioned above could be due to the positive correlation between cellulose crystallinity and the decomposition temperature of cellulose as well as the activation energy at the decomposition stage of cellulose.
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| http://dx.doi.org/10.1016/j.biortech.2020.123498 | DOI Listing |
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