Thermogravimetric Analysis of Biomass-Plastic Co-Pyrolysis:Characterization and Evaluation

Renewable biomass has emerged as a paramount energy source capable of undergoing multifacetedtransformations into various forms of fuel, encompassing liquid, solid, and gaseous states, facilitated by anarray of processes. The extraction of high-value materials from biomass necessitates meticulous equipmentdesign and the implementation of diverse methodologies, with pyrolysis emerging as a prominent avenue inthis regard. The engineering of apparatuses pertinent to this process mandates a comprehensiveunderstanding of reaction kinetics. In this study, an investigation into agricultural residues generated in Iranwas conducted, identifying bagasse as the preferred biomass material, while LDPE and PET polymers werechosen to represent plastic waste. The kinetics of pyrolysis reactions involving LDPE, PET, and theiramalgamation with bagasse were scrutinized. Through the execution of heat-weighted experiments,combined with the exploration of kinetic models for the pyrolysis reactions of LDPE, PET, and their blendswith bagasse, a novel kinetic model was introduced, drawing from both single and multiple independentreaction frameworks. Comparative analysis of the outcomes derived from the proposed model for LDPE,PET, bagasse blends, as well as LDPE and PET, against laboratory results yielded coefficients ofdetermination of ۷۳۹۹۳۳, ۷۳۹۱۳۵, ۷۳۹۱۱۳, and ۷۳۹۹۷۹, respectively. This finding underscores a robustconcurrence between the prognosticated model outcomes and empirical laboratory data, affirming theefficacy of the developed kinetic model.

کلیدواژه ها:

Pyrolysis ، Kinetic modeling ، Thermogravimetric analysis (TGA) ، Plastic ، Biomass