Evaluation of Torrefaction on the Quality of Bio-Oil Obtained  by Pyrolisis of Green Coconut Wastes

Yasmine Braga Andrade; Rafael de Oliveira Farrapeira; Jaderson Kleveston Schneider; Allan dos Santos Pollidoro; Lisiane Santos Freitas; Cleide Mara Faria Soares; Elina Bastos Caramão

doi:10.34178/jbth.v6i4.334

Yasmine Braga Andrade
Rafael de Oliveira Farrapeira
Jaderson Kleveston Schneider
Allan dos Santos Pollidoro
Lisiane Santos Freitas
Cleide Mara Faria Soares
Elina Bastos Caramão

DOI: https://doi.org/10.34178/jbth.v6i4.334

Keywords: Torrefaction, Pyrolysis, Bio-Oil, Phenolic Compounds, Chromatography Analyses

Abstract

Pyrolysis of green coconut residues is considered a promising source of biomass for transforming energy and generating value-added products from thermochemical processes such as pyrolysis, mainly due to the high volume of this material in the Northeast region. For better pyrolytic results, some pre-treatments of the biomass can be used. In this work, the pre-treatment technique of oxidative and non-oxidative torrefaction was applied, using temperatures of 200 and 250 °C. These torrefied biomasses were subsequently subjected to fast pyrolysis at 700 °C. GC/qMS characterized the bio-oil obtained, and an increase in the content of phenolic compounds was observed in the torrefied biomass samples when compared to the raw biomass, indicating that the process is viable and adds value to the bio-oil obtained by pyrolysis.