In Situ Transesterification of Mahogany Seed Oil (Swietenia Macrophylla King) Become of Methyl Ester with Co-solvent N-hexane

Daryono, Elvianto Dwi (2015) In Situ Transesterification of Mahogany Seed Oil (Swietenia Macrophylla King) Become of Methyl Ester with Co-solvent N-hexane. International Journal of ChemTech Research, 8 (3). ISSN 1974-4290

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Abstract

The purpose of this research was to assess the effectiveness of the use of co-solvent n-hexane for in situ transesterification reaction mahogany seed oil as a biodiesel. Variables and operating conditions include catalyst KOH 0.075 mol/L, stirring speed of 600 rpm, 40oC the reaction temperature, % FFA oil is 1,42%, moisture content seed of 0.8%, reaction time is 2, 4, 6, 8 and 10 hours and the mass ratio of seedl:methanol:n-hexane is 1:3:2, 1:3:3 and 1:3:4. Mahogany seeds that have been dried and pulverized size +20/-30 mesh as much as 50 grams included in the three-neck flask equipped condenser and added methanol, n-hexane and catalyst KOH and the reaction carried out in accordance with the variables and operating conditions. After the reaction is complete, the filtrate and cake was separated. To stopped the reaction with neutralized the KOH catalyst with added HCl 1 mol/L to pH 4. The filtrate distilled at a temperature of 70°C and the residue distilled included in the separating funnel and allowed to stand for 12 hours in order to form two layers. From the research data obtained the best results at a mass ratio of seed:methanol:n-hexane is 1:3:4.and reaction time 4 hours with yield methyl esters of 88.18%. Methyl ester density 0.8791 g/cm3 meet SNI 04- 7182-2006 from 0.85 to 0.89 g/cm3.

Item Type: Article
Uncontrolled Keywords: biodiesel, co-solvent, in situ transesterification, mahogany seed oil.
Subjects: Engineering > Chemical Engineering
Divisions: Fakultas Teknologi Industri > Teknik Kimia S1
Depositing User: Mr Sayekti Aditya Endra
Date Deposited: 16 Jun 2023 01:03
Last Modified: 16 Jun 2023 06:36
URI: http://eprints.itn.ac.id/id/eprint/12153

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