Sintesis Etil Ester Dari Minyak Biji Kemiri (Aleurites molluccana) Menggunakan Metode Ultrasonokimia
ABSTRACT: The availability of
the fuel oil in the world are declining, so that alternative energy is needed
to meet the needs of the fuel. One of the alternative energy is biodiesel
(ethyl/methyl ester). The research aimed to determine the optimal conversion
value of ethyl ester, to identify ester components and their concentration. The
biodiesel was produced from candlenut oil (Aleurites mollucana) ethanol by the
ratio of 1:6 using 0.5% KOH catalyst which reacted by utilizing ultrasonic wave
(47 kHz) for 45, 60 and 75 minutes. Biodiesel conversion value were 3.9%, 1.6%
and 1.2% respectively. The biodiesel obtained then were analyzed by FTIR and
result the pattern of fatty acid ethyl esters. In addition, analysis by GC-MS
revealed the concentration under variation times of ethyl palmitate, ethyl
linoleic, ethyl oleic and ethyl stearic from variation time 45,
60 and 75 minutes. They were 6.34%, 1.76% and
1.56%), (25.94%, 6.46% and 7.46%), (31.42%, 8.17% and 8.79%) and 2.13%.
Penulis: Yunizar AL, Aisyah
Aisyah, Suriani
Kode Jurnal: jpkimiadd150720