Catalytic upgrading of crude tall oil into a paraffin-rich liquid

Jinto M. Anthonykutty*, Juha Linnekoski, Ali Harlin, Antero Laitinen, Juha Lehtonen

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)


Catalytic upgrading via hydrotreatment is an essential method to produce paraffin-range renewable feedstocks from bio-derived oils. This research approach studies the catalytic hydrotreating of crude tall oil (CTO) over a sulfided NiMo catalyst under industrial-relevant conditions in order to produce hydrocarbon fraction, a steam cracker feed with maximum amount of paraffins and high degree of deoxygenation. Initial activity of the catalyst (6 h of time on stream) has been investigated, and we report that hydrotreating experiments at most favorable tested conditions (weight hourly space velocity, WHSV = 1 h−1 and T = 350–400 °C) produces hydrocarbon fraction with 45 wt% of paraffins (n-alkanes + i-alkanes). The highest degree of deoxygenation (91 %) was achieved at WHSV = 1 h−1 and T = 350 °C. Furthermore, the potential of hydrotreated CTO for steam cracking applications has been assessed in this study in view of the achieved product distribution and degree of deoxygenation from the hydrotreating of CTO.

Original languageEnglish
Pages (from-to)149-159
Number of pages11
JournalBiomass Conversion and Biorefinery
Issue number2
Publication statusPublished - 1 Jun 2015
MoE publication typeA1 Journal article-refereed


  • Crude tall oil
  • GC×GC-MS
  • Hydrotreating
  • Steam cracking


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