Title of article :
Investigation on the porosity development by CO2 activation in heavy oil fly ashes☆
Author/Authors :
Seggiani، نويسنده , , Maurizia and Vitolo، نويسنده , , Sandra and Narducci، نويسنده , , Piero، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Abstract :
The porosity evolution in heavy oil fly ashes subjected to activation with CO2 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 CO2 at the same temperature for different times.
erent 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.
Keywords :
CO2 activation , Porosity development , Heavy oil fly ash , Activated carbons