Abstract

Hydrotreatment of anisole and furfural as model compounds of carbohydrates and lignin fraction of pyrolysis liquids was studied using Cr-containing (from 0 to 18 wt%) Ni-based sol-gel catalysts. The catalytic activity of Ni−Cr catalysts was carried out in the autoclave at pressure 6.0 MPa of hydrogen and temperature 320 °C and 100 °C for anisole and furfural hydrotreatment, respectively. Addition of Cr to Ni-SiO2 catalyst results in increasing activity in anisole conversion with the maximum for NiCr10-SiO2 catalyst. This is attributed to the formation of dispersed metallic Ni detected by X-ray diffraction method. Moreover, the Cr addition increases the corrosion resistance of samples in the medium of acetic acid at boiling temperature. In furfural conversion, the Cr-doped catalysts showed the lowest activity, however, for NiCr10-SiO2 catalyst the high selectivity to tetrahydrofurfuryl alcohol formation was observed.

Original languageEnglish
Pages (from-to)7317-7326
Number of pages10
JournalChemistrySelect
Volume4
Issue number24
DOIs
Publication statusPublished - 28 Jun 2019

Keywords

  • Anisole
  • Bio-oil
  • Catalytic hydrotreatment
  • Furfural
  • nickel-chromium catalysts
  • METHANOL SYNTHESIS
  • THIN-FILMS
  • OXIDATION
  • FAST PYROLYSIS OIL
  • MOLYBDENUM
  • SOL-GEL CATALYSTS
  • COPPER-CATALYSTS
  • SELECTIVE HYDROGENATION
  • X-RAY PHOTOELECTRON
  • XPS

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