SUDIRMAN, MALISA BINTI (2012) PEMANFAATAN BIJI ALPUKAT (persea americana) MENJADI BIODIESEL SEBAGAI BAHAN BAKAR ALTERNATIF (BBA). Other thesis, POLITEKNIK NEGERI SRIWIJAYA.
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Abstract
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.
| Item Type: | Thesis (Other) |
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| Uncontrolled Keywords: | : Avocado, Biodiesel, Esterification, Transesterification |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Chemical Engineering > Undergraduate Theses |
| Depositing User: | Mrs Trisni Handayani |
| Date Deposited: | 17 Mar 2016 02:39 |
| Last Modified: | 17 Mar 2016 02:39 |
| URI: | http://eprints.polsri.ac.id/id/eprint/2790 |
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