Evaluation of Biodiesel Production Using Oil Feedstock from Contaminated Macro Algae in Shrimp Farming
This research was aimed to manage and utilize 3 contaminated macro algae from shrimp farming, Caulerpa lentillifera, Caulerpa racemosa and Acanthophora spicifera as an alternative oil feedstock for biodiesel production. Oil extraction was performed and biodiesel production was conducted in further to get the maximum yield. The optimization of condition, such as the molar ratio of oil to methanol, effect of reaction time, reaction temperature, and percentage of catalyst were carried out. The results were discovered that the average amount of oil from these macro algae were approximately 3.3% from dried basis. The optimum condition for biodiesel production with these 3 macro algae was nearly the same. The reaction was completed within 8 h and the achievement of biodiesel yield was 55.58% from Caulerpa lentillifera with the suitable condition of oil to methanol molar ratio 1:15 using 1% of KOH at 60°C. Caulerpa racemosa can be produced 58.36% of biodiesel from the condition of oil to methanol ratio 1:15 with 1.5% of KOH at 60°C. As well, the optimum condition for biodiesel production from Acanthophora spicifera was using 1:12 of oil to methanol ratio with 1% of KOH and obtained 49.29% of biodiesel.
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