Thermo-kinetic Study of Genetically Different Carbon-Source Materials.

ABSTRACT: A nonisothermal thermogravimetric analysis (TGA) technique was applied to determine the devolatilization kinetic parameters of completely different genesis samples of four groups: coal, biomass, lignite, and petcoke. The physical and chemical characteristics were determined using the proximate and ultimate analysis and the ash composition profile using the X-ray fluorescence method. Heating rates of 10, 15, and 20 °C/min were used in the temperature range of 25-1000 °C during the slow pyrolysis under an inert gas atmosphere. A widely used and proposed first-order Coats-Redfern kinetic model was applied, which showed the highest values of activation energies (E_a) for the petcoke sample from 57.17 to 67.58 kJ/mol at three different heating rates, while the lignite sample re

SUBMITTER: Saini R 

PROVIDER: S-EPMC10586296 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature