Co-combustion of coal and waste in pulverized coal boiler

Odile Vekemans, Jean-Philippe Laviolette and Jamal Chaouki

Energy, 2016, vol. 94, issue C, 742-754

Abstract: A novel reactor reproducing PCB (pulverized coal boiler) environment was used to evaluate the potential of sorbent co-firing and waste co-combustion as cheap retrofitting techniques to reduce SO2 emissions of existing boiler. Several co-feeding tests of coal and CaCO3 and coal and Ca(OH)2 have been performed for a gas residence time around 0.5 s (4 times shorter than PCB). Results show sulfur emission reduction up to 18% with Ca(OH)2 injection, and up to 20% with limestone for a Ca/S ratio of 2. Co-firing of a 20% thermal share of a waste derived fuel called ReEF™, led to SO2 emissions reduction of around 20%. Co-firing of this ReEF™ led also to HCl emissions of more than 20 ppm due to the PVC content of the ReEF™.

Keywords: Pulverized coal boiler; Co-combustion; RDF; Waste; SO2 emission; Model (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:94:y:2016:i:c:p:742-754

DOI: 10.1016/j.energy.2015.11.026

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