This Author published in this journals
All Journal Info-Teknik
Dorothy Eka Ria
PS Kimia F MIPA Unlam

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

PENENTUAN WAKTU REAKSI DAN JUMLAH KATALIS (H2¬SO4 DAN KOH) OPTIMUM PADA PEMBUATAN BIODIESEL DARI MINYAK GORENG BEKAS Abdullah Abdullah; Dorothy Eka Ria; Uripto Trisno Santoso; Kholifatu Rosyidah
INFO-TEKNIK Vol 11, No 1 (2010): INFOTEKNIK VOL. 11 NO. 1 2010
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v11i1.1768

Abstract

Research of determination of optimum reaction time and number of catalyst (H2SO4 and KOH) at biodiesel production from waste cooking oil had been done. Aim of this research is to get the optimum reaction time and number of catalyst (H2SO4 and KOH), and the main chemical compound of biodiesel from waste cooking oil. Biodiesel from waste cooking oil is made from esterification reaction using H2SO4 2% w/w as acid catalyst, continued by transesterification reaction using KOH as base catalyst. The variables which is used in the research were the reaction time of esterification (45, 90, and 135 minutes) and transesterification (60, 120, and 180 minutes), while variation number of acid catalyst were 0,5; 1,0; 1,5 ml and base catalyst were 0,5; 1,0; 1,5 g. The optimum reaction time and number of catalyst were determined based on biodiesel characteristics are acid number, kinematics viscosity, and density. The characteristics were compared with waste cooking oil characteristic and SNI standard for biodiesel. Main chemical compound was determined by GC-MS instrument. Based on the research result obtained the optimum quality of methyl ester with acid number was 0,19 mg KOH/g, kinematics viscosity (40oC) was 4,51 mm2/s, and density was 0,875 g/ml. Concluded that the reaction time of esterification was 90 minutes and transesterification was 120 minutes, with number of catalyst H2SO4 2% w/w was 0,5 ml and KOH was 1,0 g for oil was 50 ml. Main chemical compound of biodiesel were  methyl lauric, methyl myristic, methyl palmitic, and methyl oleic, respectively.