Pyrolysis of walnut shell biomass in fluidized bed reactor: Determination of optimum conditions for bio-char production

Abstract

The pyrolysis of the walnut shell was carried out in a lab-scale continuous fluidized bed reactor at a temperaturerange of 400 to 600 °C. Thermogravimetric analysis technique was used to determine the thermal properties of thewalnut shell. The bio-char product obtained from pyrolysis was analyzed to evaluate the effect of the pyrolysistemperature. Increasing the pyrolysis temperature to 600 °C improved the High Heating Value (HHV) and % C valueof the bio-char product. These results showed that the optimum temperature value for bio-char production fromwalnut shell was 600 °C.