title: Preparation of liquid chemical feedstocks by co-pyrolysis of electronic waste and biomass without formation of polybrominated dibenzo-p-dioxins.
abstract: The co-pyrolysis of waste electrical and electronic equipments (WEEEs) and waste biomass to obtain pyrolysis-oil, a liquid fuel or chemical feedstock, was carried out in the present work. The pyrolysis-oil yield of co-pyrolysis reached 62.3% which was significantly higher than those of pyrolysis of WEEEs and biomass alone (i.e., 53.1% for WEEEs and 46.3% for biomass), suggesting that synergistic effects of the WEEEs and biomass happened during the co-pyrolysis process. The pyrolysis-oil mainly contained aromatic compounds, including many aromatic hydrocarbons. More than 90 wt.% of bromides were enriched in pyrolysis-oil and char, which is easily to be recovered by further treatments, and no polybrominated dibenzo-p-dioxins and furans (PBDD/Fs) were detected in all products which may be attributed to the blocking of PBDD/Fs generation under special reductive environment of pyrolysis. This work provided a green and environmentally friendly approach for the disposal of the WEEEs as well as resource recovery.
authors.affiliation: Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
authors.forename: Wu-Jun
authors.initials: WJ
authors.lastname: Liu
authors.forename: Ke
authors.initials: K
authors.lastname: Tian
authors.forename: Hong
authors.initials: H
authors.lastname: Jiang
authors.forename: Xue-Song
authors.initials: XS
authors.lastname: Zhang
authors.forename: Guang-Xi
authors.initials: GX
authors.lastname: Yang
mesh_terms: D028202:Abies / Q000737:chemistry*; D018533:Biomass; D004147:Dioxins / Q000737:chemistry*; D055615:Electrical Equipment and Supplies; D055772:Green Chemistry Technology / Q000379:methods*; D017745:Incineration / Q000379:methods*; D012037:Refuse Disposal / Q000379:methods*; D012996:Solutions
chemical_list: D004147:Dioxins; D012996:Solutions