Bio-oil upgrading with catalytic pyrolysis of biomass using Copper/zeolite-Nickel/zeolite and Copper-Nickel/zeolite catalysts

Ravinder Kumar, Vladimir Strezov, Emma Lovell, Tao Kan, Haftom Weldekidan, Jing He, Behnam Dastjerdi, Jason Scott

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8 Citations (Scopus)

Abstract

The bio-oil obtained from a general pyrolysis process contains a higher concentration of oxygenated compounds and the resultant physical and chemical properties make it an unsuitable drop-in fuel. The oxygenated compounds in the bio-oil can be converted into hydrocarbons or less oxygenated compounds with the application of catalysts. This study demonstrated the bio-oil upgrading with the application of catalysts, comparing the catalytic effect of combined mono-metallic catalysts (Cu/zeolite and Ni/zeolite) and sole bi-metallic catalyst (CuNi/zeolite) on the composition of bio-oil and pyrolytic gases. The results demonstrated that in comparison to the combined mono-metallic catalysts, the sole bi-metallic catalyst showed better deoxygenation for all the oxygenated compounds and favoured the production of aliphatic hydrocarbons, whereas the combination of mono-metallic catalysts generated higher proportion of aromatic hydrocarbons in the bio-oil. In both cases, the catalysts equally favoured decarboxylation and decarbonylation reactions, as CO2/CO of approximately 1 was obtained during the pyrolysis process.
Original languageEnglish
Pages (from-to)404-409
Number of pages6
JournalBioresource Technology
Volume279
Early online date18 Jan 2019
DOIs
Publication statusPublished - May 2019

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Keywords

  • Catalytic fast pyrolysis
  • Bio-oil upgrading
  • Combined mono-metallic
  • Bi-metallic
  • Hydrocarbons

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