Supported beta-Mo2C on Carbon Materials for Kraft Lignin Decomposition into Aromatic Monomers in Ethanol

Kejing Wu, Junbo Wang, Yingming Zhu, Xueting Wang, Chunyan Yang, Yingying Liu, Changjun Yang, Houfang Lu*, Bin Liang, Yongdan Li

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The beta-Mo2C on different carbon supports was prepared conveniently via direct H-2 reduction or self-reduction for catalytic conversion of Kraft lignin into aromatic hydrocarbons, aromatic alcohols, and aromatic aldehydes. The beta-Mo2C on macroporous carbon (MC) with large pore size exhibits the highest activity with aromatic yield of 0.543 g/g Kraft lignin at 280 degrees C for 3 h, resulting from the accessibility of lignin fragments to beta-Mo2C. Mo, MoO2, and MoO3 possess relatively low activity. Higher calcination temperature is required to obtain beta-Mo2C over graphite (Gr) support than MC and activated carbon (AC), and small grain size of Gr-supported catalysts is beneficial for high activity. The beta-Mo2C on AC exhibits the highest selectivity to aromatic hydrocarbons, which are attributed to highly dispersed beta-Mo2C in micropores.

Original languageEnglish
Pages (from-to)12602-12610
Number of pages9
JournalIndustrial & Engineering Chemistry Research
Volume58
Issue number28
DOIs
Publication statusPublished - 17 Jul 2019
MoE publication typeA1 Journal article-refereed

Keywords

  • MOLYBDENUM CARBIDE
  • PLATFORM CHEMICALS
  • HYDRODEOXYGENATION
  • DEPOLYMERIZATION
  • REDUCTION
  • OXIDATION
  • CATALYSTS
  • HYDROCARBONS
  • VALORIZATION
  • ACID

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