Chapter 282 - Pyrolysis of Walnut Shell in a Fixed-Bed Reactor

Abstract

This chapter deals with the pyrolysis of Walnut shell in a fixed-bed reactor. In this chapter, the fixed bed slow pyrolysis experiments have been conducted on a sample of walnut shell. The experiments are performed in a static Heinze retort to investigate, particularly, the influence of final pyrolysis temperature, the heating rate, and the particle size range on the pyrolysis product yields. Moreover, the pyrolysis oil has been characterized at the condition of the maximum liquid product yield. In the fixed bed retort, the maximum oil yield of 20% is obtained at 500°C with particle size range of 0.224–1.24 mm and heating rate of 40°C minl. The yield of pyrolysis conversion is 70.8% at the experimental conditions. The chemical characterization has shown that the oil obtained from walnut shell can be used as a renewable fuel and a chemical feedstock. Finally, the chemical characterization has shown that the oil obtained from walnut shell can be used as a renewable fuel and a chemical feedstock.