Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Construction a bench co-current bed model gasifier suitable for the local biomasses
Submission Author:
Mateus Andreazza Araújo Leite , CE
Co-Authors:
Luan Gustavo Roque Lioba, Joao Duarte, Mateus Andreazza Araújo Leite
Presenter: Luan Gustavo Roque Lioba
doi://10.26678/ABCM.COBEM2017.COB17-0373
Abstract
Alternative energy sources are indispensable for a sustainable social and technological progress. Brazil is a major producer in the agricultural area where some by-products classified as biomass. These can be in turn used in a gasification process, which makes use of a thermal technology for the treatment of solid and organic waste, producing a combustible gas. However, studies are still needed to determine if it is viable to gasify certain biomasses and to distinguish their efficiencies. Due to the need of faster tests with small amounts of biomass, an equipment with reduced proportions was idealized. Gasifier such as the counter-current model and fluidized bed produce synthesis gas with high concentration of impurities and require complex and expensive equipment for the filtration and washing of the gases produced. Considering these needs and limitations for tests, it was decided to construct a bench gasifier with fixed and co-current bed because its conception and operation is less complex besides producing a gas freer of tar and particulates (impurities). The gasifier bed was narrowed using alumina sphere of several diameters. The use of alumina is an attempt to improve the overall efficiency by improving the thermal efficiency of the gasifier, as it harnesses the thermal energy of the radiation that would be lost and redirects it to the combustion. The thermal insulation to be used is an outer sheath coating with ceramic fiber blanket, improving the overall thermal efficiency of the system.
Keywords
Biomass, Biomass gasification, energy efficiency
