title: Renewable phenols production by catalytic microwave pyrolysis of Douglas fir sawdust pellets with activated carbon catalysts.
abstract: The effects of different activated carbon (AC) catalysts based on various carbon sources on products yield and chemical compositions of upgraded pyrolysis oils were investigated using microwave pyrolysis of Douglas fir sawdust pellets. Results showed that high amounts of phenols were obtained (74.61% and 74.77% in the upgraded bio-oils by DARCO MRX (wood based) and DARCO 830 (lignite coal based) activated carbons, respectively). The catalysts recycling test of the selected catalysts indicated that the carbon catalysts can be reused for at least 3-4 times and produced high concentrations of phenol and phenolic compounds. The chemical reaction mechanism for phenolics production during microwave pyrolysis of biomass was analyzed.
authors.affiliation: Bioproducts, Sciences and Engineering Laboratory, Department of Biological Systems Engineering, Washington State University, Richland, WA 99354-1671, United States.
authors.forename: Quan
authors.initials: Q
authors.lastname: Bu
authors.forename: Hanwu
authors.initials: H
authors.lastname: Lei
authors.forename: Lu
authors.initials: L
authors.lastname: Wang
authors.forename: Yi
authors.initials: Y
authors.lastname: Wei
authors.forename: Lei
authors.initials: L
authors.lastname: Zhu
authors.forename: Yupeng
authors.initials: Y
authors.lastname: Liu
authors.forename: Jing
authors.initials: J
authors.lastname: Liang
authors.forename: Juming
authors.initials: J
authors.lastname: Tang
mesh_terms: D028202:Abies; D002244:Carbon / Q000737:chemistry*; D002384:Catalysis; D008401:Gas Chromatography-Mass Spectrometry; D008872:Microwaves; D010636:Phenols / Q000138:chemical synthesis*
chemical_list: D010636:Phenols; D002244:Carbon
keywords: Activated carbon; Catalytic pyrolysis; Phenols; Reaction mechanism; Recycling