title: Catalytic fast pyrolysis of cellulose and biomass to produce levoglucosenone using magnetic SO4(2-)/TiO2-Fe3O4.
abstract: Magnetic superacid (SO4(2-)/TiO2-Fe3O4) was prepared for catalytic fast pyrolysis of cellulose and poplar wood to produce levoglucosenone (LGO). Its catalytic activity was evaluated via pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) experiments, and compared with the non-magnetic SO4(2-)/TiO2, phosphoric acid (H3PO4) and sulfur acid (H2SO4) catalysts. Moreover, the LGO yield was quantitatively determined. The results indicated that the magnetic SO4(2-)/TiO2-Fe3O4 was effective to selectively produce LGO from both cellulose and poplar wood. Its catalytic capability was a little better than the non-magnetic SO4(2-)/TiO2 and H3PO4, and much better than the H2SO4. The maximal LGO yields from both cellulose and poplar wood were obtained at 300 °C with the feedstock/catalyst ratio of 1/1, reaching as high as 15.43 wt% from cellulose and 7.06 wt% from poplar wood, respectively.
authors.affiliation: National Engineering Laboratory for Biomass Power Generation Equipment, North China Electric Power University, Beijing 102206, China. Electronic address: qianglu@mail.ustc.edu.cn.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Lu
authors.affiliation: National Engineering Laboratory for Biomass Power Generation Equipment, North China Electric Power University, Beijing 102206, China.
authors.forename: Xiao-ning
authors.initials: XN
authors.lastname: Ye
authors.affiliation: National Engineering Laboratory for Biomass Power Generation Equipment, North China Electric Power University, Beijing 102206, China.
authors.forename: Zhi-bo
authors.initials: ZB
authors.lastname: Zhang
authors.affiliation: National Engineering Laboratory for Biomass Power Generation Equipment, North China Electric Power University, Beijing 102206, China.
authors.forename: Chang-qing
authors.initials: CQ
authors.lastname: Dong
authors.affiliation: Key Laboratory for Biomass Clean Energy of Anhui Province, University of Science and Technology of China, Hefei 230026, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhang
mesh_terms: D001709:Biotechnology / Q000379:methods; D019086:Bridged Bicyclo Compounds, Heterocyclic / Q000138:chemical synthesis*; D002384:Catalysis; D002482:Cellulose / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D005947:Glucose / Q000031:analogs & derivatives* / Q000138:chemical synthesis; D006358:Hot Temperature; D008280:Magnetics; D032107:Populus / Q000737:chemistry; D013431:Sulfates / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*; D014934:Wood / Q000737:chemistry*
chemical_list: D019086:Bridged Bicyclo Compounds, Heterocyclic; D005290:Ferric Compounds; D013431:Sulfates; C009495:titanium dioxide; C000499:ferric oxide; D002482:Cellulose; C512757:1,6-anhydro-3,4-dideoxyhex-3-enopyran-2-ulose; D014025:Titanium; D005947:Glucose
keywords: Biomass; Catalytic fast pyrolysis; Cellulose; Levoglucosenone; Magnetic superacid catalyst