Investigation on Prospective Energy Power from Corncob Husk Biomass and its Biochars by Kinetic Parameters and Isoconversional Models

Author(s)

Bueno, Carolina C. ^[1] ; Maia, Amanda A. D. ^[1] ; de Morais, Leandro C. ^[1] ; Rosa, Andre H. ^[1]

Affiliation

^[1] Univ Estadual Paulista Julio de Mesquita Filho UN, Dept Engn Ambiental, Inst Ciencia & Tecnol, Av Tres de Marco 511, BR-18087180 Sorocaba, SP - Brazil

• Document type: Journal article
• Source: Journal of the Brazilian Chemical Society; v. 28, n. 11, p. 2202-2210, NOV 2017.
• Web of Science Citations: 0

Abstract

The biofuel properties of biomass play an important role in achieving their utilization on agro-systems and industries. In this context the biomass waste of maize, corncob husk, and its biochars were taken into account to be investigated by thermogravimetric analysis, thermodynamic parameters for non-isothermal analyses using the Ozawa-Flynn-Wall kinetic isoconversional model in order to comprehend its possible fuels features. It was also investigated the compounds generated after pyrolysis and their relation with oxidation reactions for the safe-handling and storage. It was found that corncob husk biochar produced at 300 °C shows the best qualities as a solid biofuel, since it requires less energy input through pyrolysis to be produced. Finally, analysing the compounds generated and remained on the biochar’s surface, by Fourier transform infrared spectroscopy (FTIR) analysis, biochars produced at low temperatures present one of the lowest features prone to oxidation reactions. (AU)

• FAPESP's process: 13/24168-8 - Sustainable agriculture: preparation and characterization of polymeric microspheres containing biochar for imobilization and slow release of phosphorus and promoting bacteria plant growth
• Grantee: André Henrique Rosa
• Support Opportunities: Program for Research on Bioenergy (BIOEN) - Regular Program Grants
• FAPESP's process: 13/08373-0 - Biochar Engineering - Preparation and Characterization of microspheres for slow releasing of nutrients and bacteria
• Grantee: Carolina de Castro Bueno
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 16/08215-4 - REUTILIZATION OF WASTE AND DETOXIFICATION OF WASTEWATER: EVALUATION OF THE POTENTIAL APPLICATION OF BIOCHAR FOR THE REMOVAL OF EMERGING CONTAMINANTS AND PONTENTIALLY TOXIC METALS
• Grantee: André Henrique Rosa
• Support Opportunities: Regular Research Grants