Thermogravimetric characteristics and kinetics of herb residues catalyzed by potassium carbonate
نویسندگان
چکیده
Thermal conversion technology of Chinese herb residues (CHR) becomes one the most promising technologies in large-scale clean utilization due to its short process and high efficiency. In this study, non-isothermal thermogravimetric analysis CHR samples without with K2CO3 (5%K- 9%K) was implemented at 300−1125 K heating rates 10−40 K/min. A model-free Starink method applied evaluate thermal decomposition behavior apparent activation energy (Eα) values. The estimated average decreases from 206.3 kJ/mol raw 143.8–160.6 K2CO3. catalysts significantly promote catalytic pyrolysis reaction hemicellulose cellulose main devolatilization stage 425 700 over 82.02 % mass loss. temperature is higher than traditional lignocellulosic biomass decoction. By using generalized master-plots method, it found that could be described by a modified Dn-Jader model, but values n tend change measurably for remarkably effect
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ژورنال
عنوان ژورنال: Journal of Analytical and Applied Pyrolysis
سال: 2021
ISSN: ['1873-250X', '0165-2370']
DOI: https://doi.org/10.1016/j.jaap.2021.105170