Food Waste Devolatilization Kinetics with Demonstration of Its Implementation in Computational Modeling of a Fluidized Bed Pyrolysis Reactor

IF 3.1 3区 工程技术 Q3 ENERGY & FUELS
Nihal Yasir, Yassir Makkawi, Baraa Ahmed, Ondrej Masek
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引用次数: 0

Abstract

This study presents the derivation of a kinetic model for the devolatilization of post-consumption food waste using thermogravimetric analysis (TGA). The derived model was implemented in an Eulerian-Eulerian Computational Fluid Dynamics (CFD) framework to simulate pyrolysis in a fluidized bed reactor operating at 550 °C. Due to the heterogeneity and complexity of food waste composition, the reaction function and devolatilization kinetics were identified using a staged decomposition approach. As determined by TGA, these stages correspond to the decomposition of protein, cellulose, and hemicellulose approximately between 270 and 300 °C, and the decomposition of lipids approximately between 350 and 400 °C. The activation energy, obtained using three different model-free iso-conversional methods, was consistent, with an average value of \({E}_{a}\) = 219.23 kJ/mol. The pyrolysis reaction was found to follow an order-based model, with the master plot method yielding an average reaction order of \(n\) = 10.3 and an Arrhenius frequency factor of \(A\) = 1.16 × 1019 [(kmol/m3)1−n/s]. The predicted distribution of pyrolysis products, validated against experimental data, highlights the robustness of the proposed analysis and its computational implementation. This methodology provides a strong foundation for further development and adaptation to simulate the pyrolysis of food waste and other diverse feedstocks, broadening its applicability to various types of biomass.

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来源期刊
BioEnergy Research
BioEnergy Research ENERGY & FUELS-ENVIRONMENTAL SCIENCES
CiteScore
6.70
自引率
8.30%
发文量
174
审稿时长
3 months
期刊介绍: BioEnergy Research fills a void in the rapidly growing area of feedstock biology research related to biomass, biofuels, and bioenergy. The journal publishes a wide range of articles, including peer-reviewed scientific research, reviews, perspectives and commentary, industry news, and government policy updates. Its coverage brings together a uniquely broad combination of disciplines with a common focus on feedstock biology and science, related to biomass, biofeedstock, and bioenergy production.
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