It has been found that raw mixes for the manufacture of calcium sulphoaluminate cements are able to contain not only fluidised bed combustion wastes, but also other by-products, such as fly ash and flue gas desulphurization waste, coming from a traditional coal-fired power station. The concentration of FBC waste was comprised between 10 and 20%; the overall concentration of the by-products ranged from 33 to 40%. Very satisfactory results were obtained in terms of conversion and selectivity towards the desired hydraulic compounds, calcium sulphoaluminate and dicalcium silicate, in the range of the temperatures investigated, 1200°-1300 °C. The best synthesis temperature for obtaining the maximum amount of both phases was about 1250°C.
Fluidized bed combustion waste as a raw mix component for the manufacture of calcium sulphoaluminate cements / G., Belz; P., Caramuscio; M., Marroccoli; Montagnaro, Fabio; M., Nobili; A., Telesca; G. L., Valenti. - STAMPA. - (2006), pp. IX.4.1-IX.4.5. ( 29th Meeting of the Italian Section of The Combustion Institute Pisa, Italy 14-17 Giugno).
Fluidized bed combustion waste as a raw mix component for the manufacture of calcium sulphoaluminate cements
MONTAGNARO, FABIO;
2006
Abstract
It has been found that raw mixes for the manufacture of calcium sulphoaluminate cements are able to contain not only fluidised bed combustion wastes, but also other by-products, such as fly ash and flue gas desulphurization waste, coming from a traditional coal-fired power station. The concentration of FBC waste was comprised between 10 and 20%; the overall concentration of the by-products ranged from 33 to 40%. Very satisfactory results were obtained in terms of conversion and selectivity towards the desired hydraulic compounds, calcium sulphoaluminate and dicalcium silicate, in the range of the temperatures investigated, 1200°-1300 °C. The best synthesis temperature for obtaining the maximum amount of both phases was about 1250°C.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
