Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
EVALUATION OF THE INFLUENCE OF LIGNIN ON THE BIOMASS TORREFACTION PROCESS
Submission Author:
Miriam Ricciulli de Oliveira , SP
Co-Authors:
Miriam Ricciulli de Oliveira, Gretta Larisa Aurora Arce Ferrufino, Eliana Vieira Canettieri, Ivonete Ávila
Presenter: Miriam Ricciulli de Oliveira
doi://10.26678/ABCM.COBEM2019.COB2019-2163
Abstract
In the current scenario of the depletion of fossil fuel reserves, lignocellulosic biomass presents itself as an important source of energy because it’s cheap and widely available. Researchers have been looking for ways to improve the thermo-chemical conversion processes of biomass to biofuels, in order to obtain an increase in the energy productivity of the same. A pretreatment that is being used for this purpose is torrefaction, where the sample is submitted to temperatures between 200 ° C and 300 ° C under inert atmosphere, generating a product with high energetic density. In the chemical treatment known as acetosolv pulping, the delignification of the biomass occurs, generating a black liquor rich in lignin and being insoluble in water, it’s possible to recover the final of the process. This study aimed to verify the influence of lignin on the sugarcane bagasse torrefaction process, treating the biomass by the acetosolv pulp and isolating the lignin, aiming the energy optimization of the process. Based on analysis of the experimental results, it was observed that the lignin present in the biomass contributes significantly to its energy density, because the higher the lignin content the higher will be the higher heating value and volatile ignitability.
Keywords
Torrefaction, Biomass, acetosolv, surgacane bagasse
