title: Biomass fast pyrolysis in a fluidized bed reactor under N2, CO2, CO, CH4 and H2 atmospheres.
abstract: Biomass fast pyrolysis is one of the most promising technologies for biomass utilization. In order to increase its economic potential, pyrolysis gas is usually recycled to serve as carrier gas. In this study, biomass fast pyrolysis was carried out in a fluidized bed reactor using various main pyrolysis gas components, namely N(2), CO(2), CO, CH(4) and H(2), as carrier gases. The atmosphere effects on product yields and oil fraction compositions were investigated. Results show that CO atmosphere gave the lowest liquid yield (49.6%) compared to highest 58.7% obtained with CH(4). CO and H(2) atmospheres converted more oxygen into CO(2) and H(2)O, respectively. GC/MS analysis of the liquid products shows that CO and CO(2) atmospheres produced less methoxy-containing compounds and more monofunctional phenols. The higher heating value of the obtained bio-oil under N(2) atmosphere is only 17.8 MJ/kg, while that under CO and H(2) atmospheres increased to 23.7 and 24.4 MJ/kg, respectively.
authors.affiliation: School of Energy and Environment, Southeast University, Nanjing 210096, China.
authors.forename: Huiyan
authors.initials: H
authors.lastname: Zhang
authors.forename: Rui
authors.initials: R
authors.lastname: Xiao
authors.forename: Denghui
authors.initials: D
authors.lastname: Wang
authors.forename: Guangying
authors.initials: G
authors.lastname: He
authors.forename: Shanshan
authors.initials: S
authors.lastname: Shao
authors.forename: Jubing
authors.initials: J
authors.lastname: Zhang
authors.forename: Zhaoping
authors.initials: Z
authors.lastname: Zhong
mesh_terms: D056804:Biofuels; D001709:Biotechnology / Q000379:methods*; D002245:Carbon Dioxide / Q000737:chemistry; D002248:Carbon Monoxide / Q000737:chemistry; D002681:China; D006358:Hot Temperature; D006859:Hydrogen / Q000737:chemistry; D008031:Lignin / Q000737:chemistry*; D008697:Methane / Q000737:chemistry; D009584:Nitrogen / Q000737:chemistry; D035261:Plant Components, Aerial / Q000737:chemistry*; D003313:Zea mays
chemical_list: D056804:Biofuels; C036909:lignocellulose; D002245:Carbon Dioxide; D002248:Carbon Monoxide; D006859:Hydrogen; D008031:Lignin; D009584:Nitrogen; D008697:Methane