A Hybrid Kinetic Analysis of the Biosolids Pyrolysis using Thermogravimetric Analyser

Abstract

In this study, multi‐heating rate and multi‐temperature pyrolysis experiments of mechanically and biologically treated Australian biosolids is conducted in a Thermogravimetric Analyser (TGA). A hybrid approach is applied for the estimation of kinetic parameters of biosolids pyrolysis where model‐free methods such as Kissinger–Akahira–Sunose (KAS) and Ozawa–Flynn–Wall (OFW) are used to derive activation energy while model‐fitting method such as Coats‐Redfern is used to derive pre‐exponential factor. The results obtained from this study are compared with other biosolids, lignocellulosic biomass, microalgae and coal. The activation energy and pre‐exponential factor obtained in the current work are 99.75 kJ/mol and 1.7×109 min−1 respectively. The coefficients of determination (R2) obtained in the determination of activation energies ranged between 0.93 and 0.99.

Effect of Temperature and MgCl2 Concentration on the Catalytic Pyrolysis of Malt Waste Using Response Surface Methodology

“…[3,4] This process is normally carried out in the total or partial absence of oxygen, at a temperature range of 400-600 °C. [5] Many industrial wastes, such as plastic waste, [6,7] spent tire, [8] tetra pak residue, [9] cellulose, [10,11] lignin, [12] sugarcane bagasse, [13][14][15] coffee residues, [16,17] corncob, [18] fruit residue, [19] oilseed shells, [20] microalgae, [21,22] seeds [23,24] and pine wood, [25] among others, have been evaluated as sources for the pyrolysis process.…”

Study on thermochemical characteristics properties and pyrolysis kinetics of the mixtures of waste corn stalk and pyrolusite

“…Different mathematical models have been established by scholars to study the pyrolysis characteristcs of biomass with thermogravimetric analysis technology, which is an effective and efficient method for studying the kinetics of biomass pyrolysis. Kissinger, distributed activation energy and starink model have been widely employed to evaluate and explain the kinetics of the biomass pyrolysis because these models have several advantages, including simplicity and accuracy (Gao, 2018;Li, 2018;Patel et al, 2018). Currently, the two most important models for predicting the kinetics of biomass pyrolysis are the isothermal and the non-isothermal methods (Arshad, 2020).…”

Elucidation of Thermal Degradation Model for Low and High Density Polyethylene by Statistical Parameters

“…Kinetic parameters, which ultimately determines the rate of degradation is important from the design and operational perspective of pyrolysis reactors. [10][11][12] Studies pertaining to identification of thermal decomposition model is widely reported in literature for various materials as mentioned in Table S1. [13][14][15][16] In most of these studies, estimated kinetic parameters are used to determine reaction model through least square fitting of simulated and experimental rate parameter (dα/dt) or through direct comparison of experimental and theoretical master plots.…”