Catalytic hydrotreatment of some technical lignins

Anja Oasmaa, Raimo Alén, Dietrich Meier

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66 Citations (Scopus)

Abstract

Five kraft lignins from softwood and hardwood and one softwood lignin from the organocell process were converted into an oil-like product by hydrotreatment at 400°C for 40 minutes in the presence of different catalysts. The total oil yields varied in the range 49-71% wt of the original lignin feedstock. The highest yield was obtained for organosolv lignin using a catalyst mixture of sulfided NiMo on aluminosilica (M8-81): Cr2O3 (M9-10) (1:1). Detailed GLC analysis of the low-molecular-weight components in the oil products (the total amounts of 14-38% wt of the original lignin) indicated the presence of various alkyl benzenes, phenols, and polycyclic aromatics.

Original languageEnglish
Pages (from-to)189-194
Number of pages6
JournalBioresource Technology
Volume45
Issue number3
DOIs
Publication statusPublished - 1 Jan 1993
MoE publication typeA1 Journal article-refereed

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Keywords

  • catalyst
  • Hydrotreatment
  • kraft lignin
  • oil product
  • organosolv lignin

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