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A novel index for the study of synergistic effects during the co-processing of coal and biomass

Oladejo, Jumoke M.; Adegbite, Stephen; Pang, Cheng Heng; Hao, Liu; Parvez, Ashak M.; Wu, Tao

Authors

Jumoke M. Oladejo

Stephen Adegbite

Cheng Heng Pang

HAO LIU liu.hao@nottingham.ac.uk
Professor of Energy Engineering

Ashak M. Parvez

Tao Wu



Abstract

In this study, synergistic interaction between coal and biomass and its intensity were investigated systematically using a low rank coal and its blends with different biomass samples at various blending ratios. The catalytic effects of minerals originated from biomass were also studied. It was found that some of the minerals existing in the ash derived from oat straw catalysed the combustions process and contributed to synergistic interactions. However, for the coal and rice husk blends, minimal improvements were recorded even when the biomass and coal blending ratio was as high as 30 wt%. Biomass volatile also influenced the overall combustion performance of the blends and contributed to synergistic interactions between the two fuels in the blends. Based on these findings, a novel index was formulated to quantify the degree of synergistic interactions. This index was also validated using data extracted from literature and showed satisfactory correlation coefficients. It was found that at a blending ratio of 30 wt% oat straw in the blend, the degree of synergistic interaction between coal and oat straw showed an additional SF value of 0.25 with non-catalytic and catalytic synergistic effect contributing 0.16 (64%) and 0.09 (36%) respectively. This index could be used in the selection of proper biomass and proper blending ratio for co-firing at coal-fired power stations aiming at improving the combustion performance of poor quality coals via enhancing synergistic interactions during co-processing.

Journal Article Type Article
Publication Date Feb 15, 2017
Journal Applied Energy
Print ISSN 0306-2619
Electronic ISSN 0306-2619
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 188
APA6 Citation Oladejo, J. M., Adegbite, S., Pang, C. H., Hao, L., Parvez, A. M., & Wu, T. (2017). A novel index for the study of synergistic effects during the co-processing of coal and biomass. Applied Energy, 188, https://doi.org/10.1016/j.apenergy.2016.12.005
DOI https://doi.org/10.1016/j.apenergy.2016.12.005
Keywords Fuel characterisation; Synergistic interaction; Performance index; Synergy index; Thermogravimetric analysis
Publisher URL http://www.sciencedirect.com/science/article/pii/S0306261916317688
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0





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