Related Experiment Video
Updated: May 22, 2025
07:30
Fast Pyrolysis of Biomass Residues in a Twin-screw Mixing Reactor
Published on: September 9, 2016
27.6K
Pyrolysis kinetics, mechanism and thermodynamics of peanut shell based on Gaussian function deconvolution
Jialiu Lei1,2, Liu Yang1, Yuhao Wang1
1School of Materials Science and Engineering, Hubei Polytechnic University, Huangshi 435003, China.
Heliyon
|March 14, 2025
Summary
Peanut shell pyrolysis kinetics were analyzed, revealing pseudo-lignin requires the highest activation energy. This research guides the efficient conversion of peanut shells into valuable energy sources.
Area of Science:
- Biomass valorization and thermochemical conversion.
- Focus on sustainable energy production from agricultural waste.
Background:
- Peanut shells are abundant global biomass resources with significant energy potential.
- Pyrolysis is a key thermochemical process for converting biomass waste into valuable products.
Purpose of the Study:
- To assess the pyrolysis kinetics, reaction mechanisms, and thermodynamic parameters of peanut shell components.
- To optimize pyrolysis conditions for efficient valorization of peanut shells.
Main Methods:
- Pyrolysis experiments conducted under nitrogen flow from 303 K to 1173 K at varying heating rates (10-30 K/min).
- Gaussian function peak-differentiating analysis to separate pyrolysis into pseudo-components (lignin, cellulose, hemicellulose).
- Application of Coats-Redfern, Kissinger-Akahira-Sunose, Flynn-Wall-Ozawa, and Vyazovkin methods for kinetic analysis.
Main Results:
- Activation energies followed the order: pseudo-lignin > pseudo-hemicellulose > pseudo-cellulose.
- Coats-Redfern analysis indicated random nucleation for pseudo-hemicellulose/cellulose and diffusion-based mechanisms for pseudo-lignin.
- Thermodynamic analysis showed peanut shell decomposition is endothermic and non-spontaneous.
Conclusions:
- The study provides crucial kinetic and mechanistic insights for peanut shell pyrolysis.
- Findings support the steady conversion of peanut shells into value-added energy sources.
- This research facilitates the resourceful utilization of peanut shell biomass.
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