Catalysis Letters

, Volume 138, Issue 1–2, pp 8–13 | Cite as

Effect of Alkali Metal Impurities on Co–Re Catalysts for Fischer–Tropsch Synthesis from Biomass-Derived Syngas

  • Christine M. Balonek
  • Andreas H. Lillebø
  • Shreyas Rane
  • Erling Rytter
  • Lanny D. Schmidt
  • Anders Holmen
Article

Abstract

The effect of alkali impurities on Co-based Fischer–Tropsch (FT) catalysts is important for processing biomass-derived synthesis gas containing inorganic ash impurities. The effects of Na, K, Li, and Ca impurities on γ-Al2O3-supported Co–Re powder catalysts were studied at impurity loadings between 25 and 1,000 ppm. Impurity addition did not have any effect on H2 chemisorption, but the catalyst activity decreased during FT synthesis experiments. The impurities were also found to slightly increase the reduction temperatures of Co. Carbon selectivities to CH4 decreased with increasing impurity loading, while CO2 and C5+ hydrocarbon selectivities increased. Catalyst behavior was attributed mostly to electronic effects from the alkali addition, leading to decreased surface H concentrations and increased CO adsorption and dissociation.

Graphical Abstract

Site-time yield (STY) as a function of metal impurity loading at constant conversion of CO.

Keywords

Fischer–Tropsch Biomass Cobalt Alkali 

Notes

Acknowledgments

This material is based upon work supported under a National Science Foundation Graduate Research Fellowship. Support was also received from the Research Council of Norway and the Norwegian University of Science and Technology. Statoil appreciate contribution from the InGAP project. Statoil is acknowledged for providing the standard catalysts.

References

  1. 1.
    Arvelakis S, Koukios EG (2002) Biomass Bioenergy 22:331CrossRefGoogle Scholar
  2. 2.
    Xiong S, Burvall J, Orberg H, Kalen G, Thyrel M, Ohman M, Bostrom D (2008) Energy Fuels 22:3465CrossRefGoogle Scholar
  3. 3.
    Hoskinson RL, Karlen DL, Birrellc SJ, Radtke CW, Wilhelm WW (2007) Biomass Bioenergy 31:126CrossRefGoogle Scholar
  4. 4.
    Blekkan EA, Holmen A, Vada S (1993) Acta Chem Scand 47:275CrossRefGoogle Scholar
  5. 5.
    Bonzel HP, Broden G, Krebs HJ (1983) Appl Surf Sci 16:373CrossRefGoogle Scholar
  6. 6.
    Gaube J, Klein HF (2008) Appl Catal A Gen 350:126CrossRefGoogle Scholar
  7. 7.
    Warzel J (2006) Fischer–Tropsch (FT) workshop for turbine engine applications. Oklahoma City, OklahomaGoogle Scholar
  8. 8.
    Tréepanier M, Tavasoli A, Dalai AK, Abatzoglou N (2009) Appl Catal A Gen 353:193CrossRefGoogle Scholar
  9. 9.
    Borg O, Hammer N, Eri S, Lindvaag OA, Myrstad R, Blekkan EA, Roenning M, Rytter E, Holmen A (2009) Catal Today 142:1CrossRefGoogle Scholar
  10. 10.
    Bakker RR, Elbersen HW (2005) 14th European biomass conference and exhibition. Paris, FranceGoogle Scholar
  11. 11.
    Mansilla H, Garcia R, Tapia J, Duran H, Urzua S (1991) Wood Sci Technol 25:145CrossRefGoogle Scholar
  12. 12.
    Zhou XL, White JM (1987) Surf Sci 185:450CrossRefGoogle Scholar
  13. 13.
    Ma W-P, Ding Y-J, Lin L-W (2004) Ind Eng Chem Res 43:2391CrossRefGoogle Scholar
  14. 14.
    Solymosi F, Kovacs I (1989) J Phys Chem 93:7537CrossRefGoogle Scholar
  15. 15.
    Bonzel HP, Krebs HJ (1981) Surf Sci 109:L527CrossRefGoogle Scholar
  16. 16.
    Rodriguez-Ramos I, Guerrero-Ruiz A, Fierro JLG, de la Piscina PR, Homs N (1990) Z Anorg Allg Chem 582:197CrossRefGoogle Scholar
  17. 17.
    Brown JK, Luntz AC, Schultz PA (1991) J Chem Phys 95:3767CrossRefGoogle Scholar
  18. 18.
    Wesner DA, Linden G, Bonzel HP (1986) Appl Surf Sci 26:335CrossRefGoogle Scholar
  19. 19.
    Ertl G, Lee SB, Weiss M (1981) Surf Sci 111:L711CrossRefGoogle Scholar
  20. 20.
    Lang ND, Holloway S, Norskov JK (1985) Surf Sci 150:24CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Christine M. Balonek
    • 1
  • Andreas H. Lillebø
    • 3
  • Shreyas Rane
    • 3
  • Erling Rytter
    • 2
  • Lanny D. Schmidt
    • 1
  • Anders Holmen
    • 3
  1. 1.Department of Chemical Engineering and Materials ScienceUniversity of MinnesotaMinneapolisUSA
  2. 2.Statoil R&D RotvollTrondheimNorway
  3. 3.Department of Chemical EngineeringNorwegian University of Science and Technology (NTNU)TrondheimNorway

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