Pyrolysis of groundnut de-oiled cake and characterization of the liquid product

Renewable biomass is considered as an important energy resource all over the world and for an agriculture based economy like that of India, the future prospects of being able to convert widely available biomass materials into various forms of fuel is most attractive. In this study, pyrolysis of groundnut de-oiled cake was investigated with an aim of studying the physical and chemical characteristics of the bio-fuel produced and to determine its feasibility as a commercial fuel. Thermal pyrolysis of groundnut de-oiled cake was done in a semi-batch reactor at a temperature range of 200–500 °C and at a heating rate of 20 °C/min. The chemical analysis of the bio-fuel showed the presence of functional groups such as alkanes, alkenes, alkynes, aldehydes, ketones, carboxylic acids, esters, amines, nitriles, nitro compounds and aromatics rings. The physical properties of the bio-fuel obtained were close to that of diesel and petrol.