Comparative study on catalytic and non-catalytic pyrolysis of olive mill solid wastes

Christoforou, Elias A., Fokaides, Paris A., Banks, Scott W., Nowakowski, Daniel, Bridgwater, Anthony V., Stefanidis, Stelios, Kalogiannis, Kostas G., Iliopoulou, Eleni F. and Lappas, Angelos A. (2017). Comparative study on catalytic and non-catalytic pyrolysis of olive mill solid wastes. Waste and Biomass Valorization, First ,


In this study, catalytic and non-catalytic fast pyrolysis of dried olive husk and olive kernels was carried out. A bubbling fluidised bed reactor was used for the non-catalytic processing of the solid olive wastes. In-situ catalytic upgrading of biomass fast pyrolysis vapours was performed in a fixed bed bench-scale reactor at 500 °C, for catalyst screening purposes. A maximum bio-oil yield of 47.35 wt.% (on dry biomass) was obtained from non-catalytic fast pyrolysis at a reaction temperature of 450 °C, while the bio-oil yield was decreased at 37.14 wt.% when the temperature was increased to 500 °C. In the case of the fixed bed unit tests, the highest liquid (52.66 wt.%) and organics (30.99 wt.%) yield was achieved with the use of the non-catalytic silica sand. Depending on the catalytic material, the liquid yield ranged from 47.03 to 43.96 wt.% the organic yield from 21.15 to 16.34 wt.% on dry biomass. Solid products were increased from 28.23 wt.% for the non-catalytic run to 32.81 wt.% on dry biomass, when MgO (5% Co) was used.

Publication DOI:
Divisions: Engineering & Applied Sciences
Engineering & Applied Sciences > Chemical Engineering & Applied Chemistry
Engineering & Applied Sciences > European Bioenergy Research Institute (EBRI)
Additional Information: The final publication is available at Springer via
Uncontrolled Keywords: bio-oil,catalytic pyrolysis,fast pyrolysis,olive,olive husk,olive kernel,Environmental Engineering,Renewable Energy, Sustainability and the Environment,Waste Management and Disposal
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Online Date: 2017-01-20
Authors: Christoforou, Elias A.
Fokaides, Paris A.
Banks, Scott W. ( 0000-0002-4291-2572)
Nowakowski, Daniel ( 0000-0001-8056-5316)
Bridgwater, Anthony V. ( 0000-0001-7362-6205)
Stefanidis, Stelios
Kalogiannis, Kostas G.
Iliopoulou, Eleni F.
Lappas, Angelos A.



Version: Accepted Version

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