SINTESA BIODIESEL DARI MINYAK JELANTAH (SECOND-USED COOKING OIL)
| Main Authors: | , WANODYA ASRI KAWENTAR, , Prof. Arief Budiman, M.Sc., D.Eng., |
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| Format: | Thesis NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2012
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/99983/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=56231 |
Daftar Isi:
- This research aimed to study the kinetic reaction of second-used cooking oil transesterification into biodiesel and find the optimum condition in biodiesel production with variation in temperature, alcohol to oil molar ratio, and catalyst concentration. This research was done by transesterification reaction in batch reactor. The feedstock was collected from the street sellers in Yogyakarta. Methanol was used as a reactant and KOH was used as a base catalyst. The study parameters were temperature, alcohol to oil molar ratio, and catalyst concentration. The preexperiment was done to analyze the feedstock and find the optimum reaction time. The analysis method was done by titration. Several types of analysis used were free glycerol analysis, total glycerol analysis, FFA (free fatty acid) analysis, and total acid analysis. These analyses were used to calculate the yield of conversion and ester content of biodiesel sample. From the result analysis of this research, it is found that the kinetic reaction of second-used cooking oil transesterification can be expressed by k = 0.0251exp (-15.29/RT) dm3/ (mol.min). The optimum condition (the ester content 92.76 %.) of biodiesel production were obtained at temperature 66.5oC, molar ratio of methanol to oil 6.18:1, and 1 wt.% of catalyst concentration. The biodiesel product from second-used cooking oil is appropriate with the National Standard of Biodiesel, with Specific Gravity 877 kg/m3, Viscosity Kinematic 4.971 mm2/s, Flash Point 180.5oC, and Pour Point 3oC. The potency of biodiesel from secondused cooking oil in Yogyakarta is 11,200 liter/day