期刊
BIORESOURCE TECHNOLOGY
卷 273, 期 -, 页码 545-555出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.11.051
关键词
General distributed activation energy model (G-DAEM); Co-pyrolysis kinetics; Model-free method; Biomass; Sewage sludge
资金
- Guangzhou Science Research Program Key Project [201804020082]
- Guangdong Province Key Laboratory of Efficient and Clean Energy Utilization (South China University of Technology) [2013A061401005]
- General Administration of Quality Supervision, Inspection and Quarantine of the PRC Projects [2017QK152]
In this work, pyrolysis kinetic evolution of mixture of bagasse and sewage sludge with 10%, 30% and 50% (respect to dry initial weight). In terms of kinetic mechanism, the uncertainty of the activation energy obtained by mode-free method was barely known. We found that increasing number of heating rates made result more reliable, but the modeling process more dependent on redundant experiments with extra data. We adapted a novel general distributed activation energy model (G-DAEM) with 5 pseudocomponents for the analysis of kinetic evolution with proposing a more applicable approximation to the general temperature integral. The G-DAEM was trained by data for 20 K/min, and the predictions were performed on data for 15 K/min and 25 K/min. The predictions were well matched to the experimental data. The G-DAEM enhances modeling efficiency of kinetics and provides a effective pathway for high precise model of complicated co-pyrolysis process.
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