Characterization and Activation of Pyrolytic Char from Fast Pyrolysis

The pyrolytic chars from fast pyrolysis of rosewood and rice husk have been activated with KOH solvent.The texture and structure,surface properties and physico-chemical properties of the pyrolytic chars have been characterized by N2 physisorption,X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FTIR)and Scanning electron microscope(SEM).Compared with the original pyrolytic chars,the activated chars had higher fixed carbon content and lower ash content.The BET surface area increased beyond 1100m2/g after activation.Moreover,the activated chars had higher graphitization degree.Through this activation process,high grade utilization of pyrolytic char will be achieved,as will benefit the industrialization of biomass fast pyrolysis technology.