PEBUATAN BIODIESEL BERKUALITAS BAIK DENGAN ACID PRE-TREATMENT
| Main Authors: | Setyawardhani , Dwi Ardiana, Distantina, Sperisa, Dewi, Nuryah, Utami, Minyana Dwi |
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| Format: | Article PeerReviewed application/pdf |
| Terbitan: |
EKUILIBRIUM
, 2010
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| Subjects: | |
| Online Access: |
http://eprints.uns.ac.id/1701/1/3%2DDWI_%2D_Biodiesel_acid_pretreatment%2D11%2D15.pdf http://eprints.uns.ac.id/1701/ |
Daftar Isi:
- Based onthe increasing of energy requirement, the world biodiesel-demand will rise. The Indonesian production-capacity was 2.5% of total national requirement in 2006. One of the reasons is using edible oil as feedstock. Exploration of new crops is needed to develop. Rubber seed is potential feedstock for biodiesel in case of its high proportion of oil. By using a proper pretretment, we could produce high quality biodiesel. A two steptrans-esterification process was developed to convert the oil to methyl esters (biodiesel). The first step, acid pre-treatment using HCl, H2SO4, dan H3PO4 on 2,5% v/v as catalyst on the ratio of methanol to oil is 6:1, 60 0C in 2 hours. The second step, alkaline (KOH) catalyzed trans-esterification was proceessed in 1 hour, 2% catalyst, 50 0C on the ratio of methanol to oil is 6:1. The biodiesel characteristics were analyzed and compared to biodiesel produced from crude rubber seed oil. The important properties of biodiesel such as specific gravity, kinematic viscocity, falsh point, and pour point were found out and matched to Indonesian National Standard (SNI), except the carbon residue, which higher than the standard. keywords: acid pre-treatment, rubber seed oil, biodiesel.