Experimental Biodiesel Derivation from Peanut and Bambara Groundnut Shells Pyrolysis Oils

Cadeau Adjamie RAVOLATAHINA, Eulalie RAFANJANIRINA, Zely Arivelo RANDRIAMANANTANY

Abstract


This study investigated the potential of generating biodiesel from Bambara groundnut shells and peanut hulls, two abundant agricultural waste products. The primary aim was to expand energy sources and create value from plant waste. A two-step process was implemented: rapid pyrolysis to transform the husks into bio-oil, followed by transesterification to yield biodiesel. The results demonstrated that five liters of bio-oil could be derived from 8.62 kg of Bambara groundnut shells or 8.2 kg of peanut hulls. The subsequent transesterification process achieved high biodiesel conversion rates, reaching 95% and 96% for Bambara groundnut shells and peanut hulls, respectively. Although the biodiesels displayed comparable properties, a slight variation in calorific value was noted, with peanut hull-derived biodiesel showing a marginally higher heat content. These findings underscore the viability of producing biodiesel from these agricultural residues, presenting a promising pathway for waste valorization and energy diversification.

 


Keywords


Bambara groundnut shells, Peanut hulls, Fast pyrolysis, Transesterification, Biodiesel, Bio-oil

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References


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DOI: http://dx.doi.org/10.52155/ijpsat.v47.2.6706

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