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All Journal Jurnal Penelitian Teknologi Industri
Ardi Kurniawan Makalalag
Balai Riset dan Standardisasi Industri Manado
Chemistry Industrial & Manufacturing Engineering

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PRODUCTION OF METHYL ESTER FROM VARIOUS COCONUT OILS Ardi Kurniawan Makalalag
Jurnal Penelitian Teknologi Industri Vol. 10 No. 2 Desember 2018
Publisher : Balai Riset Dan Standardisasi Industri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (240.192 KB) | DOI: 10.33749/jpti.v10i2.4375

Abstract

Production of methyl ester from various coconut oils had been studied. This study aimed to determine optimal method for methyl esther production based on free fatty acid content and methyl ester yield. This study used crude coconut oil (CCO) which was processed from smoked copra, neutralized coconut oil and VCO whose phenolic compounds had been extracted, as raw materials Descriptive study of esterification process was carried out using methanol and NaOH catalyst at temperature of 60 oC for 3 hours. The results showed thet free fatty acid content of crude coconut oil, neutralized coconut oil, and VCO whose phenolic compounds had been extracted were 4.28%, 1.14%, and 0.17% respectively. Methyl esters produced from the three materials ranged from 61.5-65.5% with acid numbers 0.64-0.72 mgKOH / gr, saponification number 261.50 - 270.57 mg / g, and crude glycerol yield 17.75-22.75%. Chromatogram (graph) of fatty acids in methyl esters showed relatively similar pattern. Coconut oil and VCO whose phenolic compounds had been extracted could be processed into methyl esters by transesterification using methanol and NaOH catalysts.Keywords: Coconut oil, free fatty acid, methyl ester.
PRODUKSI DAN KARAKTERISASI BIODIESEL BERBAHAN BAKU MINYAK JELANTAH Ardi Kurniawan Makalalag; Doly Prima Silaban
Jurnal Penelitian Teknologi Industri Vol. 12 No.1 Juni 2020
Publisher : Balai Riset Dan Standardisasi Industri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33749/jpti.v12i1.6428

Abstract

Biodiesel is an alternative fuel that produced from renewable material alkyl esthers and fatty acids. This research aimed to characterize biodiesel production from used cooking oil. This research method was mixing used cooking oil and methanol with molecule weight ratio (1:4; 1:6; 1:8) by using KOH 0.75% as catalyst. Reaction temperature were (oC) 50, 60 and 70 at 80 minutes reaction time. Next, top layer was heated at 50oC for 30 minutes. Density, viscosity, acid value and yield of biodiesel were observed. Data obtained from testing result were analyzed descriptively. Biodiesel density value were (kg/m3) 898-1095; viscosity were (cSt) 6,4-8,6; Acid value were (mg KOH/g) 0,6-1,1 with biodiesel yield were (%) 76,2-81,6.Keywords: biodiesel, used cooking oil, KOH
Co-Authors Doly Prima Silaban