Application of steel industry slags as novel cost efficient catalysts in catalytic fast pyrolysis of biomass

J. Lehtonen, T. Ohra-Aho, C. Lindfors, E. Kholkina, N. Kumar, D. Yu. Murzin, A. Oasmaa

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Abstract

Slags from metallurgical industry are cost efficient alternatives for acidic zeolites in catalytic fast pyrolysis. A slag from steel industry was studied for catalytic fast pyrolysis of pine sawdust. The desulfurization slag from a blast furnace steel mill was modified to improve its catalytic properties by using alkaline pretreatments and hydrothermal syntheses. As a result, specific surface area of the material could be increased. Modified desulfurization slags were tested using analytical pyrolysis and bench scale bubbling fluidized bed pyrolyser. Results of analytical pyrolysis indicate that slags are able to modify product distribution. Based on these results, the best modified slag was chosen for bench scale pyrolysis tests. In the bench scale run, the use of modified slag led to oxygenated bio oil compared to fast pyrolysis with sand. However, bio oil yield decreased simultaneously as typically in catalytic fast pyrolysis.

Original languageEnglish
Title of host publicationProceedings of the 26th European Biomass Conference and Exhibition, EUBCE 2018
PublisherETA-Florence Renewable Energies
Pages1014-1018
Number of pages5
ISBN (Electronic)978-88-89407-18-9
DOIs
Publication statusPublished - 1 May 2018
MoE publication typeB3 Non-refereed article in conference proceedings
Event26th European Biomass Conference and Exhibition, EUBCE 2018
- Bella center, Copenhagen, Denmark
Duration: 14 May 201817 May 2018

Conference

Conference26th European Biomass Conference and Exhibition, EUBCE 2018
Abbreviated titleEUBCE 2018
CountryDenmark
CityCopenhagen
Period14/05/1817/05/18

Keywords

  • Catalyst
  • Fast pyrolysis
  • Liquefaction
  • Thermochemical conversion

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    Lehtonen, J., Ohra-Aho, T., Lindfors, C., Kholkina, E., Kumar, N., Yu. Murzin, D., & Oasmaa, A. (2018). Application of steel industry slags as novel cost efficient catalysts in catalytic fast pyrolysis of biomass. In Proceedings of the 26th European Biomass Conference and Exhibition, EUBCE 2018 (pp. 1014-1018). ETA-Florence Renewable Energies. https://doi.org/10.5071/26thEUBCE2018-3DO.6.2