Bio-oil production from rice straw and sugarcane bagasse using a fast pyrolysis system with the capacity of 5 kg/h

Abstract

Vietnam has abundant and stable sources of biomass. Fast pyrolysis is an effective technology that converts biomass into a liquid product, known as bio-oil. In this study, the fast pyrolysis of rice straw and sugarcane bagasse was performed by a fast pyrolysis pilot system at the capacity of 5 kg/h. Influences of various parameters, including pyrolysis temperature, nitrogen flowrate, and biomass particle size, on bio-oil yield were investigated. As results, the optimal conditions for the fast pyrolysis of both types of biomass were determined as follows: 5000 C, 66 l/min, and 0.5-1.0 mm, respectively. The highest yields of bio-oil obtained from rice straw and sugarcane bagasse were 55.1 and 69.3 wt%, respectively. The bio-oil product met the US standards for biofuels obtained from fast pyrolysis and used as fuel oils (ASTM D7544-12). Bio-oil could be used wisely as an alternative type of fuel or feedstock for petrochemical production