title: The effects of torrefaction on compositions of bio-oil and syngas from biomass pyrolysis by microwave heating.
abstract: Microwave pyrolysis of torrefied Douglas fir sawdust pellet was investigated to determine the effects of torrefaction on the biofuel production. Compared to the pyrolysis of raw biomass, the increased concentrations of phenols and sugars and reduced concentrations of guaiacols and furans were obtained from pyrolysis of torrefied biomass, indicating that torrefaction as a pretreatment favored the phenols and sugars production. Additionally, about 3.21-7.50 area% hydrocarbons and the reduced concentration of organic acids were obtained from pyrolysis of torrefied biomass. Torrefaction also altered the compositions of syngas by reducing CO2 and increasing H2 and CH4. The syngas was rich in H2, CH4, and CO implying that the syngas quality was significantly improved by torrefaction process.
authors: Bioproducts, Sciences and Engineering Laboratory, Department of Biological Systems Engineering, Washington State University, Richland, WA 99354-1671, USA.
authors: Shoujie
authors: S
authors: Ren
authors: Hanwu
authors: H
authors: Lei
authors: Lu
authors: L
authors: Wang
authors: Quan
authors: Q
authors: Bu
authors: Shulin
authors: S
authors: Chen
authors: Joan
authors: J
authors: Wu
authors: James
authors: J
authors: Julson
authors: Roger
authors: R
authors: Ruan
mesh_terms: D056804:Biofuels / Q000032:analysis*; D018533:Biomass; D001709:Biotechnology / Q000379:methods*; D008401:Gas Chromatography-Mass Spectrometry; D006361:Heating; D008872:Microwaves; D009821:Oils / Q000737:chemistry*; D028224:Pseudotsuga / Q000737:chemistry*
chemical_list: D056804:Biofuels; D009821:Oils