Catalytic fast pyrolysis of cellulose and biomass to produce levoglucosenone using magnetic SO4(2-)/TiO2-Fe3O4

Bioresour Technol. 2014 Nov:171:10-15. doi: 10.1016/j.biortech.2014.08.075. Epub 2014 Aug 23.

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.

Keywords: Biomass; Catalytic fast pyrolysis; Cellulose; Levoglucosenone; Magnetic superacid catalyst.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biotechnology / methods
  • Bridged Bicyclo Compounds, Heterocyclic / chemical synthesis*
  • Catalysis
  • Cellulose / chemistry*
  • Ferric Compounds / chemistry*
  • Gas Chromatography-Mass Spectrometry
  • Glucose / analogs & derivatives*
  • Glucose / chemical synthesis
  • Hot Temperature*
  • Magnetics
  • Populus / chemistry
  • Sulfates / chemistry*
  • Titanium / chemistry*
  • Wood / chemistry*

Substances

  • Bridged Bicyclo Compounds, Heterocyclic
  • Ferric Compounds
  • Sulfates
  • titanium dioxide
  • ferric oxide
  • Cellulose
  • 1,6-anhydro-3,4-dideoxyhex-3-enopyran-2-ulose
  • Titanium
  • Glucose