The effect of kaolin on the combustion of demolition wood under well-controlled conditions
| Autor: | Lars Sørum, Alexandra Skreiberg, Dušan Todorović, Øyvind Skreiberg, Michaël Becidan, Roger Antoine Khalil, Rainer Backman, Franziska Goile |
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| Rok vydání: | 2011 |
| Předmět: |
Environmental Engineering
020209 energy Pellets chemistry.chemical_element Industrial Waste 02 engineering and technology Incineration Combustion Coal Ash 020401 chemical engineering 0202 electrical engineering electronic engineering information engineering Chlorine Gas composition 0204 chemical engineering Particle Size Kaolin Aerosols Sweden Waste management Metallurgy Temperature Pollution Wood Aerosol chemistry 13. Climate action Fly ash Bottom ash Potassium Environmental science Particle size |
| Zdroj: | Waste managementresearch : the journal of the International Solid Wastes and Public Cleansing Association, ISWA. 30(7) |
| ISSN: | 1096-3669 |
| Popis: | In an attempt to look at means for reduction of corrosion in boilers, combustion experiments are performed on demolition wood with kaolin as additive. The experiments were performed in a multi-fuel reactor with continuous feed of pellets and by applying staged air combustion. A total characterization of the elemental composition of the fuel, the bottom ash and some particle size stages of fly ash was performed. This was done in order to follow the fate of some of the problematic compounds in demolition wood as a function of kaolin addition and other combustion-related parameters. In particular chlorine and potassium distribution between the gas phase, the bottom ash and the fly ash is reported as a function of increased kaolin addition, reactor temperature and air staging. Kaolin addition of 5 and 10% were found to give the least aerosol load in the fly ash. In addition, the chlorine concentration in aerosol particles was at its lowest levels for the same addition of kaolin, although the difference between 5 and 10% addition was minimal. The reactor temperature was found to have a minimal effect on both the fly ash and bottom ash properties. |
| Databáze: | OpenAIRE |
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