Biomass Conversion to Produce Hydrocarbon Liquid Fuel via Hot-Vapor Filtered Fast Pyrolysis and Catalytic Hydrotreating

Huamin Wang, Douglas C. Elliott, Richard J. French, Steve Deutch, Kristiina Iisa

Research output: Contribution to journalArticlepeer-review

15 Scopus Citations


Lignocellulosic biomass conversion to produce biofuels has received significant attention because of the quest for a replacement for fossil fuels. Among the various thermochemical and biochemical routes, fast pyrolysis followed by catalytic hydrotreating is considered to be a promising near-term opportunity. This paper reports on experimental methods used 1) at the National Renewable Energy Laboratory (NREL) for fast pyrolysis of lignocellulosic biomass to produce bio-oils in a fluidized-bed reactor and 2) at Pacific Northwest National Laboratory (PNNL) for catalytic hydrotreating of bio-oils in a two-stage, fixed-bed, continuous-flow catalytic reactor. The configurations of the reactor systems, the operating procedures, and the processing and analysis of feedstocks, bio-oils, and biofuels are described in detail in this paper. We also demonstrate hot-vapor filtration during fast pyrolysis to remove fine char particles and inorganic contaminants from bio-oil. Representative results showed successful conversion of biomass feedstocks to fuel-range hydrocarbon biofuels and, specifically, the effect of hot-vapor filtration on bio-oil production and upgrading. The protocols provided in this report could help to generate rigorous and reliable data for biomass pyrolysis and bio-oil hydrotreating research.

Original languageAmerican English
Article numbere54088
Number of pages13
JournalJournal of Visualized Experiments
Issue number118
StatePublished - 2016

Bibliographical note

Publisher Copyright:
© 2016 Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

NREL Publication Number

  • NREL/JA-5100-63783


  • Bio-fuel
  • Bio-oil
  • Biochemistry
  • Biomass conversion
  • Catalytic hydrotreating
  • Fast pyrolysis
  • Hot-vapor filtration
  • Issue 118


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