Upgrading of bio-oil into advanced biofuels and chemicals. Part II. Importance of holdup of heavy species during the hydrotreatment of bio-oil in a continuous packed-bed catalytic reactor

Weerawut Chaiwat, Richard Gunawan, Mortaza Gholizadeh, Xiang Li, Caroline Lievens, Xun Hu, Yi Wang, Daniel Mourant, Angelina Rossiter, John Bromly, Chun Zhu Li*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

40 Citations (Scopus)

Abstract

This study has investigated the observed product distribution as a function of temperature and liquid hourly space velocity (LHSV) from the continuous hydrotreatment of pyrolysis bio-oil in a packed-bed catalytic reactor using a Pd/C catalyst. Our results show that, at a constant overall LHSV value, the time required to achieve a steady state formation rate varies widely among the various species in the raw bio-oil and hydrotreated product. Due to the complexity of bio-oil composition, LHSV is not an accurate parameter to evaluate the residence time of various species in a continuous catalytic reactor. The holdup of heavy species in the catalyst must have occupied some active sites while the heavy compounds were slowly hydrogenated. This caused the active sites to be unavailable for other reactions during the continuous hydrotreatment.

Original languageEnglish
Pages (from-to)302-310
Number of pages9
JournalFuel
Volume112
DOIs
Publication statusPublished - 24 Jun 2013
Externally publishedYes

Keywords

  • Bio-oil
  • Catalytic reactor
  • Continuous hydrotreatment
  • LHSV
  • Upgrading
  • ITC-ISI-JOURNAL-ARTICLE

Fingerprint Dive into the research topics of 'Upgrading of bio-oil into advanced biofuels and chemicals. Part II. Importance of holdup of heavy species during the hydrotreatment of bio-oil in a continuous packed-bed catalytic reactor'. Together they form a unique fingerprint.

Cite this