Co-Processing Catalytic Fast Pyrolysis Oil in an FCC Reactor

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Studies of co-processing catalytic fast pyrolysis (CFP) oil with vacuum gas oil (VGO) are conducted in a Davison Circulating Riser (DCR). The CFP oil (CFPO) for this study was produced by upgrading fast-pyrolysis vapors from pine in an ex-situ fixed-bed reactor. CFPOs were co-processed at up to 5 vol% with VGO at 521°C and 2.57 bar. The yields of oil, aqueous phase, tail gas, and coke were measured. The amount of coke was determined from the carbon containing components in the regenerator flue gas. A compositional analysis was conducted with gas chromatography and elemental analyzers. The organic liquids were distilled into gasoline, jet-fuel, diesel, and resid fractions. A biocarbon analysis was conducted on the organic phase and its individual boiling-point fractions. The results show a small decrease in liquid yield and a generally increased gas yield when co-processing CFPO with VGO. For experiments with E-Cat as catalyst, approximately 70% of biocarbon is incorporated into liquid fuels relative to fossil carbon, while more of the biocarbon is contained in tail gas (as carbon dioxide or olefins) and/or coke. The measurements indicate that cracked CFPO components are predominantly included in the jet-fuel and diesel fractions. A techno-economic analysis (TEA) estimated the minimum fuel selling price (MSFP) for fuel-range products derived from FCC co-processing of CFPO at $3 to $4 per gasoline-gallon equivalent (GGE) at a yield of 51 GGE per ton of biomass.

Original languageAmerican English
Number of pages10
StatePublished - 2021
Event29th European Biomass Conference and Exhibition, EUBCE 2021 - Virtual, Online
Duration: 26 Apr 202129 Apr 2021


Conference29th European Biomass Conference and Exhibition, EUBCE 2021
CityVirtual, Online

Bibliographical note

Publisher Copyright:
© 2021, ETA-Florence Renewable Energies. All rights reserved.

NREL Publication Number

  • NREL/CP-5100-79134


  • Biorefining
  • Circulating fluidised bed (CFB)
  • Pyrolysis oil
  • Upgrading


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