PEMANFAATAN BIJI ALPUKAT (persea americana) MENJADI BIODIESEL SEBAGAI BAHAN BAKAR ALTERNATIF (BBA)
Daftar Isi:
- Biodiesel is made by extracting the avocado seeds oil by extraction process then undergo through two stages of esterification and transesterification with the solvent to oil ratio between 1:1, until 1:5 and catalyst added to the esterification process was H2SO4 and transesterification was NaOH. During the estrification process, acid catalyst was added with different concentration 0,5% until 0,9% to the avocado seeds oil and during the transeterification, the base catalyst was added at a concentration of 0,5% until 0,9% to the result of esterification. Operation condition is maintained at a temperature of 60oC, processing time for 60 minutes and separation time of 3 hours. Biodiesel products that fulfilled the Indonesian National Standard was the composition of ratio between avocado seeds oil dan methanol 1:1 with the catalyst concentration used 0,5% with the quality analysis of density which was 0,8868 gr/ml, pH 7,17, water level 0,1128%, refractive index 1,3357 and calorific value 8377 kal/gr.