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Modeling of biomass pyrolysis in a bubbling fluidized bed reactor: Impact of intra-particle heat conduction

Dong, NH; Luo, KH; Wang, Q; (2017) Modeling of biomass pyrolysis in a bubbling fluidized bed reactor: Impact of intra-particle heat conduction. Fuel Processing Technology , 161 pp. 199-203. 10.1016/j.fuproc.2016.09.015. Green open access

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Abstract

Biomass fast pyrolysis in a fluidized bed reactor is studied numerically by a three-fluid model where the biomass thermal decomposition is introduced with multi-step kinetics. Different superficial velocities of fluidizing gas are defined to investigate the hydrodynamics of the fluidized beds and the consequent influence on the yield fractional distribution of end-products. Heat conduction inside particles is considered indirectly through modifying the rate constants of biomass reaction scheme. The simulation results show that superficial velocity has to be designed carefully based on balancing the char-removal efficiency and biomass heating up rate; compared to the experimental data, the modified reaction scheme can be employed to describe the intra-particle heat penetration, qualitatively, but the accuracy of predicting the end-product yields needs to be improved.

Type: Article
Title: Modeling of biomass pyrolysis in a bubbling fluidized bed reactor: Impact of intra-particle heat conduction
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.fuproc.2016.09.015
Publisher version: https://doi.org/10.1016/j.fuproc.2016.09.015
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Biomass fast pyrolysis, Fluidized bed reactor, Intra-particle heat penetration
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/10085976
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