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Second-generation biofuels by co-processing catalytic pyrolysis oil in FCC units

N. Thegarid 1 G. Fogassy 1 Y. Schuurman 1 C. Mirodatos 1 S. Stefanidis E. F. Iliopoulou K. Kalogiannis A. A. Lappas
1 INGENIERIE - INGENIERIE
IRCELYON - Institut de recherches sur la catalyse et l'environnement de Lyon
Abstract : Previous research showed that hydrodeoxygenated (HDO) pyrolysis-oils could successfully be co-processed with vacuum gasoil (VGO) in a labscale fluid catalytic cracking (FCC) unit to bio-fuels. Typically the hydrodeoxygenation step takes place at similar to 300 degrees C under 200-300 bar of hydrogen. Eliminating or replacing this step by a less energy demanding upgrading step would largely benefit the FCC co-processing of pyrolysis oils to bio-fuels. In this paper a bio-oil that has been produced by catalytic pyrolysis (catalytic pyrolysis oil or CPO) is used directly, without further upgrading, in catalytic cracking co-processing mode with VGO. The results are compared to the co-processing of upgraded (via HDO) thermal pyrolysis oil. Though small but significant differences in the product distribution and quality have been observed between the co-processing of either HDO or CPO, they could be corrected by further catalyst development (pyrolysis and/or FCC), which would eliminate the need for an up-stream hydrodeoxygenation step. Moreover, the organic yield of the catalytic pyrolysis route is estimated at approximately 30 wt.% compared to an overall yield for the thermal pyrolysis followed by a hydrodeoxygenation step of 24 wt.%. (C) 2013 Elsevier B.V. All rights reserved.
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https://hal.archives-ouvertes.fr/hal-00924187
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Submitted on : Monday, January 6, 2014 - 3:08:18 PM
Last modification on : Tuesday, December 8, 2020 - 12:00:04 PM

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N. Thegarid, G. Fogassy, Y. Schuurman, C. Mirodatos, S. Stefanidis, et al.. Second-generation biofuels by co-processing catalytic pyrolysis oil in FCC units. Applied Catalysis B: Environmental, Elsevier, 2014, 145, pp.161-166. ⟨10.1016/j.apcatb.2013.01.019⟩. ⟨hal-00924187⟩

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