Insight into master plots method for kinetic analysis of lignocellulosic biomass pyrolysis

Laipeng Luo, Zhiyi Zhang, Chong Li, Nishu,, Fang He, Xingguang Zhang and Junmeng Cai

Energy, 2021, vol. 233, issue C

Abstract: The determination of the kinetic triplet including the activation energy, frequency factor, and kinetic mechanism function is a key objective in kinetic analysis of solid-state reactions like lignocellulosic biomass pyrolysis. The master plots method is usually used to determine the kinetic mechanism function once the activation energies as a function of conversion are estimated from an isoconversional method. A critical study of the master plots method has been performed by analyzing theoretically simulated processes with varying activation energies and frequency factors. The accuracy of the resulting kinetic mechanism function calculated by the master plots method is strongly dependent on the variation degree of the frequency factor with conversion and the conversion dependency of activation energy from isoconversional methods. The utilization of the master plots method without considering the variation degree of the frequency factor with conversion may result in misestimating kinetic mechanism function.

Keywords: Lignocellulosic biomass pyrolysis; Kinetics; Isoconversional method; Activation energy; Master plots method; Kinetic mechanism function (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (12)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:233:y:2021:i:c:s0360544221014420

DOI: 10.1016/j.energy.2021.121194

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