Upgrading fast pyrolysis oil with vacuum gas oil by catalytic hydrodeoxygenation in supercritical ethanol

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Mingyuan Zhang
  • Dominic Pjontek
  • Haoyu Wang
  • Minkang Liu
  • Xue Han
  • Yimin Zeng

Detail(s)

Original languageEnglish
Pages (from-to)9794–9803
Journal / PublicationEnergy and Fuels
Volume38
Issue number11
Online published15 May 2024
Publication statusPublished - 6 Jun 2024
Externally publishedYes

Abstract

This work demonstrated an effective approach to upgrading bio-oils by upgrading pyrolysis bio-oil with vacuum gas oil (VGO) by catalytic hydrodeoxygenation (HDO) in supercritical ethanol with both hydrogen gas and formic acid as the in situ hydrogen source. The effects of supercritical ethanol, bio-oil/VGO mass ratio, reaction temperature, hydrogen source, and reaction time on co-upgrading pyrolysis bio-oil with VGO over Ru/Al2O3 were investigated in this study. Crude bio-oil, crude VGO, and co-upgraded oils were characterized comparatively for their physical/chemical properties and compositions. It was found that the optimal reaction conditions of co-upgrading bio-oil with VGO were at a 4:1 mass ratio, in supercritical ethanol, with hydrogen gas as the hydrogen source, and at 350 °C for 2 h over the Ru/Al2O3 catalyst. The obtained co-upgraded oils have improved thermal stability and homogeneity, which could be used as an environmentally friendly and sustainable feed for large-scale upgrading in a petroleum refinery. © 2024 American Chemical Society.

Citation Format(s)

Upgrading fast pyrolysis oil with vacuum gas oil by catalytic hydrodeoxygenation in supercritical ethanol. / Zhang, Mingyuan ; Pjontek, Dominic ; Wang, Haoyu et al.
In: Energy and Fuels, Vol. 38, No. 11, 06.06.2024, p. 9794–9803.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review