Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Jurnal Teknik Industri Terintegrasi (JUTIN) Proceeding Applied Business and Engineering Conference
Sihotang, Antonius Jumadi
Unknown Affiliation
Religion Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Pengaruh Waktu Reaksi Transesterifikasi terhadap Mutu Biopelumas dari Red Palm Stearin Tambunan, Andi Supri Tambunan; Fatmayati, Fatmayati; Sihotang, Antonius Jumadi
ABEC Indonesia Vol. 11 (2023): 11th Applied Business and Engineering Conference
Publisher : Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Currently, motor lubricants that are widely consumed are lubricants produced from the processing petroleum. The avaibility of petroleum as raw material for lubricants was decreasing. Therefore we need an alternative material can be further processed into alternative lubricants. This can be done by making biolubricant from processing vegetable oil derivatives. The purpose of this study was to determine the process of makin biolubricant from red palm stearin, to determine the effect of reaction time in the second stage of the transesterification reaction on the quality of biolubricant from red palm stearin and to produce bio lubricant with characteristics according to SNI No. 06-7069.5-2005. Research on the manufacture of this bio lubricant made from red palm stearin used a transesterification process. The fixed variable in the study were temperature 150°C, stirring in 400 rpm, mole ratio 1 : 3.9. and 1% sodium methoxide catalyst. And the variables of this study were the transesterifications time for making triesters TMP, namely 120,150,180,210, and 240. The analysis carried out was analysis of yield, density, viscosity, viscosity index, and corrosion rate. The results of this study showed that the length of time for step 2 transesterification had an effect on viscosity, viscosity index, corossoin rate, and yield. The optimal transesterification time of step 2 is 210 minutes to produce a biolubricant with a kinematic viscosity of 14.7991 cst at 40°C, 6,0991 AT 100°C, a viscosity index of 443 and a corrosion rate of 1.083 mpy.
Evaluasi Mutu Gliserol Hasil Pemurnian Biodiesel Minyak Jelantah Menggunakan Berbagai Jenis Adsorben Sihotang, Antonius Jumadi
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 1 (2026): January
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i1.55735

Abstract

Biodiesel production produces crude glycerol as a byproduct that cannot be utilized directly because it still contains various impurities. The crude glycerol used in this study had a glycerol content of 72%, a water content of 1.78%, ash content of 16.4%, and a density of 1.08 g/cm³, which indicates that the glycerol quality is still low due to the high water content and inorganic components. This study aims to evaluate the effectiveness of three types of adsorbents, namely activated carbon, zeolite, and bentonite, in improving the quality of crude glycerol from used cooking oil. The purification process is carried out through distillation, acidification, and adsorption stages with adsorbent variations of 5%, 7%, and 9%. Then, the purified glycerol was analyzed based on the parameters of glycerol content, water content, ash content, and density.
Co-Authors Tambunan, Andi Supri Tambunan