Eventos Anais de eventos
ENCIT 2022
19th Brazilian Congress of Thermal Sciences and Engineering
EXPERIMENTAL STUDY OF OXIDATIVE TORREFACTION OF EUCALYPTUS WOOD CHIP USING A MINERAL LAYER OF SILICA SAND
Submission Author:
Juan Pablo Arteaga Ramos , SP , Brazil
Co-Authors:
Juan Pablo Arteaga Ramos, Jesús David Rhenals Julio, Claudinei Henrique Ferreira Rodrigues, Gretta Larisa Aurora Arce Ferrufino, Carlos Manuel Romero Luna
Presenter: Juan Pablo Arteaga Ramos
doi://10.26678/ABCM.ENCIT2022.CIT22-0620
Abstract
Due to the increase in energy demand in recent years, renewable energy sources have gained greater prominence, with biomass considered as the fourth source of renewable energy. In Brazil, a biomass of great importance is the wood chips generated by the industrial production of eucalyptus. Eucalyptus chips are mainly used as fuel in several industries, however, like other biomasses, they have some disadvantages such as low calorific value and high humidity. These disadvantages can be minimized by the torrefaction process. The literature has presented several options, one of which is oxidative dry torrefaction. Within oxidative torrefaction, there is a form where the biomass is immersed in a bed of inert material, however this form of torrefaction is still under study. In this work, sand-assisted oxidative torrefaction of eucalyptus chips is studied. The torrefaction temperature range was varied, in addition, variables such as time and height of the sand bed will be evaluated. The results obtained indicate that the yield of torrefied biomass is inversely proportional to temperature and time. Furthermore, the height of the sand bed has an influence on the yield and properties of the torrefied biomass. Sand-assisted oxidative torrefaction improves calorific value, reduces moisture content and increases hydrophobicity.
Keywords
Mineral layer, Eucalyptus, Silica sand, Oxidative torrefaction
