PRODUCTION OF BIODIESEL FROM MARULA SEED OIL USING EGG SHELL AS HETEROGENEOUS CATALYST

Authors

  • C. M. E linge
  • A. O. Ogunleye
  • A.R Ige
  • A. Umar
  • M.A Augie

DOI:

https://doi.org/10.46602/jcsn.v67i3.751

Abstract

Diminishing fossil fuel resources, coupled with the steady increase in energy consumption, and have spurred research interest in alternative and renewable energy sources. In this research work, oil was extracted from marula seeds using soxhlet extractor and n-hexane as solvent. The extracted oil was characterized via physicochemical analysis then in-situ transesterification of oil with methanol was carried out using eggshell as catalyst. The physic-chemical analysis showed the state of the oil at room temperature to be liquid, the odour was mild, the colour was brown, specific density was 3.46, saponification value was 193.6 ± 0.25, acid value was 8.2 ± 0.4, and iodine value was 100.68 ± 1.0. Biodiesel characterization showed that kinematic viscosity at 40oC was 4.98, cetane number was 64.5, flash point was 159, pour point was - 13, cloud point was 5, and density was 0.85. The prepared eggshell catalyst was characterized using X-ray Fluorescence and was found to be composed of CaO (73.2), MgO (0.2), SiO2 (0.4), SO3 (0.3), P2O5 (0.7), Na2O (0.5), Al2O3 (0.07), K2O (0.03), and Fe2O3 (0.08). This study suggests that marula seed oil can be used as a source of triglycerides in the manufacture of biodiesel by transesterification. The properties of the biodiesel produced showed theoretical compatibility with diesel engines in accordance with the ASTM standard.

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Published

2022-06-24

How to Cite

linge, C. M. E., Ogunleye, A. O. ., Ige , A., Umar, A. ., & Augie, M. . (2022). PRODUCTION OF BIODIESEL FROM MARULA SEED OIL USING EGG SHELL AS HETEROGENEOUS CATALYST . Journal of Chemical Society of Nigeria, 47(3). https://doi.org/10.46602/jcsn.v67i3.751