Coal and biomass co-pyrolysis in a fluidized-bed reactor: Numerical assessment of fuel type and blending conditions


Co-pyrolysis is one of the most promising options for using coal and biomass because coal is low in hydrogen and biomass can supplement the hydrogen content to make a more valuable and reactive product gas. The mixture of coal and biomass is prepared, with the mass ratio of biomass varying between 0 and 100%. Due to limitations in experimental methods, the data points measured in these studies are coarse and therefore, insufficient for kinetic energy analysis and model comparison. Therefore, a mathematical model has been proposed to combine a study of the influence of experimental parameters with different materials to understand better the effect of these parameters on pyrolysis with the rigorous control of experimental conditions in terms of precision and repeatability. The advantages of mathematical modelling co-pyrolysis make it possible to design a reaction scheme capable of describing this phenomenon and extracting kinetic parameters, making it possible to compare fuels, which can be used for the simulation of this process in thermal power plants. The experimental analysis of measured co-pyrolysis data was taken from literature work to validate the proposed model. The numerical model results are in good agreement with the experimental data for co-pyrolysis. The most significant degree of synergetic effects on the product yields was observed at 600 °C and a biomass blending ratio of 70 wt%. Furthermore, the improvement of char reactivity also identifies the synergies in co-pyrolysis.

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Divisions: College of Engineering & Physical Sciences > Energy and Bioproducts Research Institute (EBRI)
College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > School of Infrastructure and Sustainable Engineering > Chemical Engineering & Applied Chemistry
Additional Information: © 2020, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Funding: This research was funded under the BRISK2 (Biofuels Research Infrastructure for Sharing Knowledge II) project funded by the European H2020-programme under the 2020 research and innovation programme.
Publication ISSN: 1873-7153
Last Modified: 27 Mar 2024 18:28
Date Deposited: 19 Jun 2020 07:11
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Related URLs: https://linking ... 016236120310000 (Publisher URL)
PURE Output Type: Article
Published Date: 2020-09-01
Published Online Date: 2020-05-08
Accepted Date: 2020-04-25
Authors: Ismail, Tamer M.
Banks, S.w. (ORCID Profile 0000-0002-4291-2572)
Yang, Y. (ORCID Profile 0000-0003-2075-3803)
Yang, Haiping
Chen, Yingquan
Bridgwater, A.v. (ORCID Profile 0000-0001-7362-6205)
Ramzy, Khaled
Abd El-salam, M.

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