Utilisation of high carbon pulverised fuel ash
Mahmud, Maythem Naji (2011) Utilisation of high carbon pulverised fuel ash. PhD thesis, University of Nottingham.
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Coal combustion by-products generated from coal-fired power plant and cause enormous problems for disposal unless a way can be found to utilize these by-products through resource recovery programs. The implementation of air act regulations to reduce NOx emission have resulted millions of tonnes of pulverised fuel ash (PFA) accumulated with high percentage of unburned carbon made it un-saleable for the cement industry. Moreover, alternative fuels such as biomass and import coals were suggested to reduce gas emissions but on the other hand PFA marketability was reduced. The main objective of this study was thus to utilise high carbon PFA into value added products. Through this work, the relationships beside the factors that could influence the carbon content in the PFA and reduce it in terms of producing raw material useful for different applications were explored. These factors were extensively investigated through thermogravimetric analyses, surface area measurements, microscopy and optical studies, and particle size distribution analyses.
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