Eventos Anais de eventos
CONEM 2018
X Congresso Nacional de Engenharia Mecânica
PHYSICAL-CHEMICAL AND THERMAL CHARACTERIZATION OF CASSAVA HARVEST RESIDUES FOR APPLICATION IN COMBUSTION AND PYROLYSIS PROCESSES
Submission Author:
Glauber Cruz , MA , Brazil
Co-Authors:
Alyson Rodrigues, Arthur Sousa Silva, Carlos Braz, Wolia Costa Gomes, Glauber Cruz
Presenter: Arthur Sousa Silva
doi://10.26678/ABCM.CONEM2018.CON18-0650
Abstract
Significant increases in the use of renewable resources are urgently needed to attemptthe needs of a growing population and build a more sustainable society.The literature presents several studies on the determination of the physicochemical characteristics of the crop residues, such as corn cobs and straws, rice husk, olive seed, sugarcane bagasse and others.However, there is still a lack of detailed information about the use of cassava harvest residues for energy applications.This work aims to characterize the cassava residues (husks, stems and leaves) for application in combustion and pyrolysis processes.The physico-chemical characterization was carried out for the cassava residues samples and was determined their ultimate analysis:carbon, nitrogen, hydrogen, sulfur and oxygen and proximate analysis:volatile material, fixed carbon, ash and moisture contents. High Heating Value (HHV) of cassava residues was also determined, ranging from 18.2 MJ kg-1 to 23.1 MJ kg-1. The values for moisture (10 %), ash (mean of 6.3% in air), volatiles (68%) and fixed carbon (16%) for the cassava different parts were determined. Thermal analysis (TG/DTG) under air and nitrogen atmosphere were used to simulate the combustion and pyrolysis processes, respectively, and determination of hemicellulose (25% ), cellulose (45%) and lignin (25%) contents of the cassava residues. Results presented in this research are useful for the application of this biomass in industrial thermal conversion processes.
Keywords
Biomass, cassava, residues, Combustion, pyrolysis
