Catalytic and non-catalytic synergistic effects and their individual contributions to improved combustion performance of coal/biomass blends

Oladejo, Jumoke M. and Adegbite, Stephen and Liu, Hao and Wu, Tao (2018) Catalytic and non-catalytic synergistic effects and their individual contributions to improved combustion performance of coal/biomass blends. Applied Energy, 211 . pp. 344-345. ISSN 0306-2619

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Abstract

This study focuses on the synergistic properties of three types of coal when co-fired with oat straw at different blending ratios. The results demonstrated non-additive interaction between oat straw and coal samples. The catalytic effect of oat straw ash and the non-catalytic effect of its organic constituents on these coal samples were isolated and analysed to measure their contribution to the confirmed synergistic effects during co-firing. The results showed a level of synergy suppression between catalytic and non-catalytic effects due to the overlapping function of the catalytic AAEMs and the radical propagation promoted by organic content of biomass. A novel index, i.e., synergy combination efficiency, was therefore proposed and used to quantify the level of synergistic promotion or synergistic inhibition occurring during the co-firing of these fuel blends. It was found that at a blending ratio of 30 wt% oat straw, the Guizhou coal achieved a synergy factor (S.F) of 1.50, with non-catalytic and catalytic synergy contributing 69.1% and 30.9% respectively. This coal blend showed the highest synergistic promotion with a combined efficiency of 194%, which demonstrated the potential of the use of co-firing synergy to improve combustion performance of poor quality coals.

Item Type: Article
Keywords: Co-firing, Catalytic synergy, Non-catalytic synergy, Synergy index, Synergy efficiency
Schools/Departments: University of Nottingham Ningbo China > Faculty of Science and Engineering > Department of Chemical and Environmental Engineering
University of Nottingham, UK > Faculty of Engineering > Department of Architecture and Built Environment
Identification Number: https://doi.org/10.1016/j.apenergy.2017.11.052
Depositing User: Eprints, Support
Date Deposited: 23 Nov 2017 09:04
Last Modified: 18 Dec 2018 04:30
URI: http://eprints.nottingham.ac.uk/id/eprint/48333

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