Investigation on the porosity development by CO2 activation in heavy oil fly ashes
| Autor: | Sandra Vitolo, P. Narducci, Maurizia Seggiani |
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| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
Materials science
Scanning electron microscope General Chemical Engineering Organic Chemistry Metallurgy CO2 activation Energy Engineering and Power Technology Heavy oil fly ash Microanalysis chemistry.chemical_compound Fuel Technology chemistry Volume (thermodynamics) Activated carbons Porosity development Fly ash Carbon dioxide Reactivity (chemistry) Porosity Pyrolysis Nuclear chemistry |
| Popis: | The porosity evolution in heavy oil fly ashes subjected to activation with CO 2 has been examined. The work examined four different heavy oil fly ashes that, after preliminary acid leaching, have been pyrolyzed at 900 °C and then activated with CO 2 at the same temperature for different times. A different evolution of porosity was observed according to the different reactivity of the samples during activation. The activated samples have been characterised as regards the surface area and the pore volume. The scanning electron microscope–energy dispersive spectrometer microanalysis has been used to interpret the experimental results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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