THERMOGRAVIMETRIC ANALYSIS OF THERMAL AND KINETIC BEHAVIOR OF ACACIA MANGIUM WOOD

Authors

  • Yasiel Arteaga Crespo
  • Reinier Abreu Naranjo
  • Julio César Vargas Burgos Departamento de Ingeniería Ambiental Universidad Estatal Amazónica Km, 2 ½ vía Puyo a Tema, Puyo
  • Caio Glauco Sanchez Faculdade de Engenharia Mecânica UNICAMP, Cidade Universita´ria “Zeferino Vaz” Barão Geraldo Campinas/SP
  • Elisabet María Sanchez Sanchez Centro Universitário Salesiano de São Paulo—UNISAL Unidade Campinas/São José

Abstract

Thermogravimetric analysis was used to study the thermal behavior of Acacia mangium wood under inert atmosphere at heating rates ranging from 5 to 15C min -1, from room temperature to 800C. Weight losses of A. mangium wood in inert atmosphere were found to occur in three stages. These three states are generally associated with the decomposition of the three main components of the lignocellulosic materials. Most decomposition occurred in the range of 300-400C (80% weight approximately). The kinetic parameters of the process were evaluated using the independent parallel reaction model, attributed to the three main components of lignocellulosic materials: hemicelluloses, cellulose, and lignin. The values of activation energy, preexponential factor, and contribution factor were similar to those reported in other studies for this type of biomass. The model proposed predicted an acceptable correlation between the experimental and the calculated curve to the decomposition of A. mangium, with an error of less than 3% of deviation in the temperature range studied.

Author Biographies

Yasiel Arteaga Crespo

Professor and Researcher

Reinier Abreu Naranjo

Professor and Researcher

Julio César Vargas Burgos, Departamento de Ingeniería Ambiental Universidad Estatal Amazónica Km, 2 ½ vía Puyo a Tema, Puyo

Professor and Researcher

Caio Glauco Sanchez, Faculdade de Engenharia Mecânica UNICAMP, Cidade Universita´ria “Zeferino Vaz” Barão Geraldo Campinas/SP

Professor and Researcher

Elisabet María Sanchez Sanchez, Centro Universitário Salesiano de São Paulo—UNISAL Unidade Campinas/São José

Professor and Researcher

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Published

2015-10-19

Issue

Vol. 47 No. 4 (2015)

Section

Research Contributions

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