High-Loaded Copper-Containing Sol-Gel Catalysts for Furfural Hydroconversion

Int J Mol Sci. 2023 Apr 19;24(8):7547. doi: 10.3390/ijms24087547.

Abstract

In this study, the high-loaded copper-containing catalysts modified with Fe and Al were successfully applied for the hydroconversion of furfural to furfuryl alcohol (FA) or 2-methylfuran (2-MF) in a batch reactor. The synthesized catalysts were studied using a set of characterization techniques to find the correlation between their activity and physicochemical properties. Fine Cu-containing particles distributed in an amorphous SiO2 matrix, which has a high surface area, provide the conversion of furfural to FA or 2-MF under exposure to high pressure of hydrogen. The modification of the mono-copper catalyst with Fe and Al increases its activity and selectivity in the target process. The reaction temperature strongly affects the selectivity of the formed products. At a H2 pressure of 5.0 MPa, the highest selectivity toward FA (98%) and 2-MF (76%) was achieved in the case of 35Cu13Fe1Al-SiO2 at the temperature of 100 °C and 250 °C, respectively.

Keywords: 2-methylfuran; Cu-containing catalyst; furfural; furfuryl alcohol; hydroconversion.

MeSH terms

  • Catalysis
  • Furaldehyde* / chemistry
  • Hydrogen / chemistry
  • Silicon Dioxide* / chemistry
  • Temperature

Substances

  • Furaldehyde
  • Silicon Dioxide
  • Hydrogen