PENGARUH 6, 8 DAN 10 KALI PEMAKAIAN MINYAK JELANTAH TERHADAP RENDEMEN HASIL REAKSI TRANSESTERIFIKASI MENGGUNAKAN KATALIS BASA HOMOGEN NaOH

Amirul Mukminin (Program Studi Teknik Pengolahan Minyak dan Gas Bumi, Sekolah Tinggi Teknologi Minyak dan Gas Bumi Balikpapan, Indonesia)
Debora Ariyani (Program Studi Teknik Pengolahan Minyak dan Gas Bumi, Sekolah Tinggi Teknologi Minyak dan Gas Bumi Balikpapan, Indonesia)
Eka Megawati (Program Studi Teknik Pengolahan Minyak dan Gas Bumi, Sekolah Tinggi Teknologi Minyak dan Gas Bumi Balikpapan, Indonesia)
Yuniarti Yuniarti (Program Studi Teknik Pengolahan Minyak dan Gas Bumi, Sekolah Tinggi Teknologi Minyak dan Gas Bumi Balikpapan, Indonesia)

Jurnal Inovasi Pendidikan dan Sains
Vol 4 No 2 (2023): August

Research has been carried out on the effect of using used cooking oil 6, 8 and 10 times usage on the % yield of methyl ester formation (biodiesel) using a homogeneous base catalyst of 0.6% mass NaOH. All used cooking oil samples were reacted with methanol with a reactant ratio of 1:5 % by mass. The transesterification reaction of each sample was carried out at 60°C for 40 minutes. The yield of used cooking oil samples for 6 times of use was 96.6%, while 8 and 10 times of use showed values ​​that were not much different, 96.4 and 96% by mass, respectively. Gas Chromatography (GC) and Mass Spectrocopy (MS) detected 14 peaks of the compound and that the 3 highest peaks indicated that the sample contained a methyl ester. Each peak of line 4 is methyl palmitate (C17H34O2) with an area of ​​36.66%, peak of line 6 is methyl oleate (C19H36O2), area of ​​55.7% and retention time of 17.92 minutes; the peak of line 7 is methyl nonadecanoate (C20H40O2) with an area of ​​4.41% and a retention time of 18.093 minutes.