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ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
KINETIC STUDY ON COMBUSTION OF COAL BLENDED WITH AGRO-INDUSTRIAL BIOMASS USING TGA
Submission Author:
Natalia Ribeiro Galina , SP
Co-Authors:
Carlos Manuel Romero Luna, Gretta Larisa Aurora Arce Ferrufino, Ivonete Ávila
Presenter: Natalia Ribeiro Galina
doi://10.26678/ABCM.ENCIT2016.CIT2016-0420
Abstract
The combustion of fossil fuels such as coal, causing an increase in emissions of greenhouse gases (GHG) mainly carbon dioxide (CO2), which has direct link with global warming. Thus, increasing the use of renewable sources, such as biomass, for the production of energy is a solution to alleviate the crisis and negative impacts on the environment. The co-combustion of coal and biomass is shown as a short-term alternative to the problem of energy and environment and is considered as the most advantageous way of utilizing both resources. Brazil has large reserves of coal, as well as the availability of agro-industrial biomass, such as sugarcane bagasse and more recently inserting sorghum varieties. Biomass sorghum is one of the most promising crops for the production of energy, and is an alternative to be used in the off-season of sugarcane, their productivity is about 2.5 times higher than that of sugarcane. In this work, the kinetic combustion of blends between coal with sugarcane bagasse and biomass sorghum bagasse were studied and compared by TGA. The experiments were performed in a thermogravimetric analyzer SDTQ600, were used three heating rate (10°C/min, 15°C/min and 20°C/min) in an oxidizing atmosphere (synthetic air). Three biomass ratios were studied being 25, 50 and 75% respectively. The results will demonstrate the effect of the addition of biomass on the kinetic parameters and combustion performance.
Keywords
co-combustion, kinetic, agro-industrial biomass, Sugarcane bagasse, Biomass sorghum
