Statistical analysis of temperature effect and silicon concentration on the Colombian semi-anthracites carbonization and combustion

Authors

  • KATHERINE PUGLIESE BARBOSA Universidade Del Atlantico
  • Mileinys Milena Miranda Silvera University of Atlántico image/svg+xml , Universidad del Atlántico image/svg+xml
  • Marley Cecilia Vanegas-Chamorro University of Atlántico image/svg+xml , Universidad del Atlántico image/svg+xml
  • Alberto Ricardo Albis Arrieta University of Atlántico image/svg+xml , Universidad del Atlántico image/svg+xml
  • María Bernarda Alvarado-Bawab Institución Universitaria ITSA

DOI:

https://doi.org/10.15665/rp.v21i1.2960

Keywords:

Coal, Carbonization, Combustion, Demineralization, Design of experiment, Semi-anthracite, Coal, Carbonization, Combustion, Demineralization, Design of experiment, Semi-anthracite

Abstract

Obtaining new materials from mineral coal is one of the strategies currently being studied in the scientific community. Statistical analysis was carried out to study the effect of temperature and silicon concentration on the carbonization and combustion processes of coals. A three-level one-factor design of experiments was carried out to evaluate the influence of temperature and silicon concentration on the carbonization process. While in the combustion process, considered two factors at two levels with central points. The samples were sieved, demineralized (HCl and HF), and then carbonized and oxidized by thermogravimetry. During oxidation, it was concluded that the temperature reached during carbonization causes an increase in the onset temperature of the reaction. At the same time, the presence of silicon decreases the onset temperature of this reaction, indicating an increase in the reactivity of the samples. The effects were evaluated through an analysis of variance (ANOVA) with a confidence level of 95%, confirming that, in the carbonization process, the events observed in both coals have a direct relationship with the presence of silicon.

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Published

2023-07-31

Issue

Vol. 21 No. 1 (2023): Enero - Junio

Section

Articles

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Copyright (c) 2023 KATHERINE PUGLIESE BARBOSA, Mileinys Milena Miranda Silvera, Marley Cecilia Vanegas-Chamorro, Alberto Ricardo Albis Arrieta, María Bernarda Alvarado-Bawab

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