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All Journal Jurnal Teknik Kimia Konversi Syntax Literate: Jurnal Ilmiah Indonesia Indonesian Journal of Pure and Applied Chemistry Jurnal Penamas Adi Buana Jurnal Medika Malahayati Industri Inovatif : Jurnal Teknik Industri G-Tech : Jurnal Teknologi Terapan Journal of Sustainable Technology and Applied Science Prosiding SNAST Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Eduvest - Journal of Universal Studies JASTEN (Jurnal Aplikasi Sains Teknologi Nasional Jurnal Teknik Kimia dan Lingkungan Jurnal ATMOSPHERE
Rini Kartika Dewi
Institut Teknologi Nasional Malang
Aerospace Engineering Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience Physics Public Health Social Sciences Other

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PENGARUH KONSENTRASI KATALIS DAN KECEPATAN PENGADUKAN PADA SINTESIS BIODIESEL MINYAK KELAPA SAWIT DENGAN KO-PELARUT METIL ESTER Daryono, Elvianto Dwi; Dewi, Rini Kartika; Anggorowati, Dwi Ana
Indonesian Journal of Pure and Applied Chemistry Vol. 9 No. 1 (2026)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v9i1.100312

Abstract

The transesterification process is hindered by the many processing steps required, and the results are often suboptimal. The interesterification process using a methyl ester co-solvent offers a solution to this issue. The methyl ester co-solvent accelerates the reaction and eliminates the need for a separation stage at the end of the process. This study aims to determine the effects of catalyst concentration and stirring speed on methyl ester yield in the interesterification of palm oil to biodiesel using a methyl ester co-solvent. A total of 250 g of oil was used, with an oil-to-methyl acetate molar ratio of 1:6. The reaction was carried out at 60 °C, using 15% co-solvent, a reaction time of 1 hour, KOH catalyst concentrations ranging from 0.25% to 1%, and stirring speeds between 600 and 1,000 rpm. The oil, methyl acetate, and catalyst were placed into a three-neck flask, and the reaction was conducted according to the specified operating conditions. Optimum conditions for palm oil interesterification were achieved with a KOH catalyst concentration of 0.5% and a stirring speed of 800 rpm, resulting in a crude yield of 93.1%, a methyl ester concentration of 43,654 mg/L, and an acid value of 0.42 mg KOH/g, meeting the requirements of SNI 7182:2015.
Sintesis dan Identifikasi Biodiesel dari Transesterifikasi Refined Palm Oil dengan Ko-pelarut Metil Ester Elvianto Dwi Daryono; Rini Kartika Dewi; Dwi Ana Anggorowati
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 3 (2025): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i3.349

Abstract

The transesterification of refined palm oil (RPO) with methyl ester (FAME) as a cosolvent was investigated to enhance solubility and mass transfer, thereby accelerating the reaction and improving biodiesel yield. This study aimed to evaluate the effects of FAME co-solvent concentration and reaction time on the transesterification process of RPO. The reaction was conducted using 250 g of RPO with a molar ratio of oil to methanol of 1:6, 0.8 wt% KOH catalyst, a stirring speed of 100 rpm, and a reaction temperature of 70°C. The co-solvent concentration was varied from 0% to 15%, while the reaction time ranged from 5 to 30 minutes. The reaction was carried out in a two-neck flask, followed by distillation to remove impurities. The resulting product was analyzed using gas chromatography and physical property tests. The optimum conditions were achieved at 5% FAME co-solvent concentration and a reaction time of 30 minutes, yielding a crude biodiesel yield of 99%, a FAME concentration of 999,265 mg/L, and a density of 0.88 g/mL, which meet the biodiesel quality standard SNI 7182:2015. The use of FAME as a co-solvent improves process efficiency by eliminating the need for a co-solvent separation step at the end of the reaction.
Co-Authors ., Muyassaroh Anggorowati, Dwi Anna Anitarakhmi Handaratri Chiou, Yuh Jing Dendy Wono Prasetyo Dio Ajeng Oktavian Dwi Ana Anggorowati Elvianto Dwi Daryono Faidliyah Nilna Minah Ferry Darmawan Harimbi Setyawati Heni Rahayu Rahmawati Islami Linda Wibawanti Jimmy Jimmy Jimmy Krisvalentina, Rossy Mohammad Istnaeny Hudha MUYASSAROH Muyassaroh Nanik Astuti Rahman Nihara Mian Intan Sari Pardede Retnowati, Dewi Siswi Astuti Sriliani Surbakti Srililiani Surbakti Stefandra, Praisela Ivane Tetuko Sigit Hanitanoyo