Beneficiation through gasification of coal combustion ash coming from an industrial power plant aimed at its reuse as adsorbent is dealt with. The raw ash was gasified in a tubular reactor at 850°C for times ranging from 10 to 60 min, using either steam or CO2 as gasifying agents. The relationships among ash properties, gasification treatments and properties of the gasified ashes deserve investigation. Therefore, ash characteristics (such as carbon content, porosimetric, diffractometric and granulometric properties) were correspondingly determined. In the light of a critical analysis of the obtained results, gasification conditions able to make the parent ash a potentially better adsorbent material were defined, with a particular emphasis on similarities and differences between steam and CO2 gasification.
Steam- and CO2-gasification of coal combustion ash aimed at its utilization in adsorption processes / Balsamo, Marco; DI NATALE, Francesco; Erto, Alessandro; Lancia, Amedeo; F., Magri; Montagnaro, Fabio; Santoro, Luciano. - (2011), pp. 334-1-334-4. (Intervento presentato al convegno 5th European Combustion Meeting tenutosi a Cardiff, Wales nel 28 Giugno-1 Luglio).
Steam- and CO2-gasification of coal combustion ash aimed at its utilization in adsorption processes
BALSAMO, MARCO;DI NATALE, Francesco;ERTO, ALESSANDRO;LANCIA, AMEDEO;MONTAGNARO, FABIO;SANTORO, LUCIANO
2011
Abstract
Beneficiation through gasification of coal combustion ash coming from an industrial power plant aimed at its reuse as adsorbent is dealt with. The raw ash was gasified in a tubular reactor at 850°C for times ranging from 10 to 60 min, using either steam or CO2 as gasifying agents. The relationships among ash properties, gasification treatments and properties of the gasified ashes deserve investigation. Therefore, ash characteristics (such as carbon content, porosimetric, diffractometric and granulometric properties) were correspondingly determined. In the light of a critical analysis of the obtained results, gasification conditions able to make the parent ash a potentially better adsorbent material were defined, with a particular emphasis on similarities and differences between steam and CO2 gasification.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.