A review of catalytic hydrodeoxygenation of lignin-derived phenols from biomass pyrolysis

Quan Bu, Hanwu Lei, Alan H. Zacher, Lu Wang, Shoujie Ren, Jing Liang, Yi Wei, Yupeng Liu, Juming Tang, Qin Zhang, Roger Ruan

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300 Scopus citations

Abstract

Catalytic hydrodeoxygenation (HDO) of lignin-derived phenols which are the lowest reactive chemical compounds in biomass pyrolysis oils has been reviewed. The hydrodeoxygenation (HDO) catalysts have been discussed including traditional HDO catalysts such as CoMo/Al2O3 and NiMo/Al2O3 catalysts and transition metal catalysts (noble metals). The mechanism of HDO of lignin-derived phenols was analyzed on the basis of different model compounds. The kinetics of HDO of different lignin-derived model compounds has been investigated. The diversity of bio-oils leads to the complexities of HDO kinetics. The techno-economic analysis indicates that a series of major technical and economical efforts still have to be investigated in details before scaling up the HDO of lignin-derived phenols in existed refinery infrastructure. Examples of future investigation of HDO include significant challenges of improving catalysts and optimum operation conditions, further understanding of kinetics of complex bio-oils, and the availability of sustainable and cost-effective hydrogen source.

Original languageEnglish (US)
Pages (from-to)470-477
Number of pages8
JournalBioresource Technology
Volume124
DOIs
StatePublished - Nov 1 2012

Keywords

  • Catalytic hydrodeoxygenation (HDO)
  • Kinetics
  • Lignin-derived phenols
  • Mechanism
  • Pyrolysis

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    Bu, Q., Lei, H., Zacher, A. H., Wang, L., Ren, S., Liang, J., Wei, Y., Liu, Y., Tang, J., Zhang, Q., & Ruan, R. (2012). A review of catalytic hydrodeoxygenation of lignin-derived phenols from biomass pyrolysis. Bioresource Technology, 124, 470-477. https://doi.org/10.1016/j.biortech.2012.08.089