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Study on the comprehensive combustion kinetics of MSW
Yu-Qi Jin1, Jian-Hua Yan, Ke-Fa Cen
1Key Lab of Clean Energy and Environment Engineering, Zhejiang University, Hangzhou 310027, China. jinyuqi@cmee.zju.edu.cn
Journal of Zhejiang University. Science
|January 17, 2004
Summary
This study analyzed the combustion of typical municipal solid waste (MSW) components using thermal gravimetric analysis (TGA). Combustion stages and kinetic parameters were determined, with a kinetic model accurately predicting experimental results.
Area of Science:
- Chemical Engineering
- Environmental Science
- Combustion Science
Background:
- Understanding the combustion behavior of municipal solid waste (MSW) is crucial for efficient waste management and energy recovery.
- Detailed kinetic analysis provides insights into the complex thermal decomposition processes of waste components.
Purpose of the Study:
- To investigate the combustion behavior of typical MSW components.
- To determine the kinetic parameters governing the combustion process.
- To develop and validate a comprehensive kinetic model for MSW combustion.
Main Methods:
- Thermal gravimetric analysis (TGA) was employed to study the combustion of MSW components from room temperature to 1000°C.
- Experiments were conducted at a heating rate of 10°C/min in an oxidizing atmosphere.
- Kinetic parameters, including activation energy, pre-exponential factor, and reaction order, were determined.
Main Results:
- The weight loss process for each MSW component comprised one to three distinct combustion stages.
- Combustion could be modeled using one to three independent reactions.
- A comprehensive kinetic model, incorporating independent and consecutive reactions, showed good agreement with experimental data.
Conclusions:
- The combustion of MSW components can be effectively characterized by distinct stages and modeled using independent kinetic reactions.
- The determined kinetic parameters are valuable for predicting MSW combustion behavior.
- The developed kinetic model offers a reliable tool for simulating and optimizing MSW combustion processes.