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One-dimensional modeling of a turbulent fluidized bed for a sorbent-based CO2 capture process with solid–solid sensible heat exchange

A one-dimensional model for a turbulent fluidized bed is proposed and applied to the analysis of a CO2 capture process using a polyethylenimine (PEI)-silica sorbent. A formula for the contact efficiency was derived from the kinetic equation of the sorbent and the Kunii–Levenspiel core–shell model. A...

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Bibliographic Details
Published in:Energy (Oxford) 2019-02, Vol.168, p.1168-1180
Main Authors: Park, Junhyung, Won, Wangyun, Jung, Wonho, Lee, Kwang Soon
Format: Article
Language:English
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Summary:A one-dimensional model for a turbulent fluidized bed is proposed and applied to the analysis of a CO2 capture process using a polyethylenimine (PEI)-silica sorbent. A formula for the contact efficiency was derived from the kinetic equation of the sorbent and the Kunii–Levenspiel core–shell model. Axial profiles of the gas and solid phase CO2 concentrations and bed temperature were computed, and the energy demand for CO2 capture was assessed for different degrees of sensible heat recovery. •A flexible one-dimensional model for the turbulent fluidized bed was developed.•Total energy demand for CO2 capture using solid sorbent was assessed.•Validity of the proposed model were verified by comparing with experimental data.
ISSN:0360-5442
1873-6785
DOI:10.1016/j.energy.2018.11.152