Fast pyrolysis of date palm (Phoenix dactylifera) waste in a bubbling fluidized bed reactor

Makkawi, Yassir, El Sayed, Yehya, Salih, Mubarak, Nancarrow, Paul, Banks, Scott and Bridgwater, Tony (2019). Fast pyrolysis of date palm (Phoenix dactylifera) waste in a bubbling fluidized bed reactor. Renewable energy, 143 , pp. 719-730.


This study presents the first experimental investigation of date palm (Phoenix dactylifera) waste fast pyrolysis in a bubbling fluidized bed reactor. The physiochemical characteristics of the feedstock (from cultivars grown in the Emirate of Sharjah in the UAE), including three anatomical parts of the plant, namely, leaves, leaf stems and empty fruit bunches, have been first analyzed and compared to other popular type of biomass. These components have been subjected to fast pyrolysis and mass balances have been derived. The fast pyrolysis products (bio-oil, and non-condensable gas) have been analyzed in terms of their chemical composition, thermogravimetric profiles, and energy content. The overall product distribution in mass percentage at the pyrolysis temperature of 525 ºC was found to be 38.8% bio-oil (including 10.4% reaction water), 37.2% biochar and 24.0% non-condensable gas. The overall energy conversion efficiency (ratio of energy content in the product to that in the feedstock) was found to be 87.0%, thus indicative of the good potential of converting the date palm waste to energy while eliminating the negative environmental impact and cost associated with waste disposal.

Publication DOI:
Divisions: Engineering & Applied Sciences > European Bioenergy Research Institute (EBRI)
Engineering & Applied Sciences
Engineering & Applied Sciences > Chemical Engineering & Applied Chemistry
Additional Information: © 2019, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Funding: American University of Sharjah (AUS) Grant FRG 16-R-27.
Uncontrolled Keywords: Biofuels,Biomass,Date palm waste,Fast pyrolysis,Fluidized bed reactor,Renewable energy,Renewable Energy, Sustainability and the Environment
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Related URLs: https://linking ... 960148119306871 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Online Date: 2019-12-01
Published Date: 2019-12-01
Authors: Makkawi, Yassir
El Sayed, Yehya
Salih, Mubarak
Nancarrow, Paul
Banks, Scott ( 0000-0002-4291-2572)
Bridgwater, Tony ( 0000-0001-7362-6205)



Version: Accepted Version

Access Restriction: Restricted to Repository staff only until 10 May 2020.

License: Creative Commons Attribution Non-commercial No Derivatives

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