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All Journal Journal on Education Sang Pencerah: Jurnal Ilmiah Universitas Muhammadiyah Buton Petrogas : Journal of Energy and Technology
I Ketut Warsa
STT Migas Balikpapan
Humanities Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Social Sciences Other

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Analisis Kandungan Biodiesel Hasil Reaksi Transesterifikasi Minyak Jelantah Berdasarkan Perbedaan Kosentrasi Katalis NaOH Menggunakan GC-MS Amirul Mukminin; Eka Megawati; I Ketut Warsa; Yuniarti Yuniarti; Wildan Azizul Umaro; Dian Islamiati
Sang Pencerah: Jurnal Ilmiah Universitas Muhammadiyah Buton Vol 8 No 1 (2022): Sang Pencerah: Jurnal Ilmiah Universitas Muhammadiyah Buton
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Muhammadiyah Buton

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1768.979 KB) | DOI: 10.35326/pencerah.v8i1.1897

Abstract

Pada penelitian ini telah diteliti pengaruh % konsentrasi massa katalis NaOH terhadap produksi metil ester (biodiesel) melalui transterifikasi minyak goreng bekas (minyak jelantah) dan metanol. Hasil tertinggi ditemukan pada katalis NaOH 0,6% dengan rendemen 85%. Sedangkan untuk penggunaan katalis NaOH 0,4; 0,5; dan 0,7% massa katalis adalah masing-masing 65,5%, 67,8% dan 72%. Instrumen Gas Chromatography (GC) dan Mass Spectrocopy (MS) telah mampu mendeskripsikan secara kualitatif dan kuantitatif kandungan biodiesel sintetik. Analisis GC-MS telah mengidentifikasi 3 puncak yang memiliki nilai area lebih tinggi dari 14 puncak yang terdeteksi sebagai metil ester asam lemak. Hasil kromatogram deteksi GC-MS menunjukkan bahwa 3 puncak tertinggi adalah pada puncak ke 7 yaitu metil oleat, luas area 55,47 % dan waktu retensi 17,967 menit; puncak ke 4 adalah metil palmitat dengan luas 36,66% dan waktu retensi 16,127 menit; dan puncak ke 8 adalah metil stearat dengan luas 4,41% dan waktu retensi 18,101 menit. Sementara itu, puncak 2 adalah metil mersitat dengan luas area hanya 1,15%.
Pengaruh Waktu Reaksi Pembuatan Biodiesel dari Minyak Jelantah dengan Bantuan Katalis Bassa NaOH terhadap Sifat Fisika dan Kimia Produk Biodiesel Amirul Mukminin; Eka Megawati; Debora Ariyani; I Ketut Warsa; Junety Monde; Sapril Sapril
Journal on Education Vol 5 No 2 (2023): Journal on Education: Volume 5 Nomor 2 Tahun 2023
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v5i2.1250

Abstract

The effect of the transesterification reaction time of 0.6% mass % NaOH catalyst in the formation of methyl ester (biodiesel) made from used waste cooking oil as raw material 6 times usage and methanol 1: 5 mass has been studied at 60°C. The reaction times used were 30, 40, and 45 minutes. All samples resulting from the transesterification reaction have been studied for their chemical and physical properties. Parameters of chemical properties included in the Indonesian National Standard (SNI) for all samples were % FFA, pH, while the water content was above the SNI standard. The physical property parameters for all samples that meet SNI are only flash point, color and 90% distillation. While the density of all test samples was lower than the SNI which was set at 850-890 Kg/m3, the results obtained for reaction times of 30, 40 and 45 minutes were 828, 833 and 836 Kg/m3 respectively. The highest yield was owned by a reaction time of 40 minutes, namely 80%. As for the reaction time of 35 and 45 minutes respectively 79 and 65%.
Pengaruh Waktu Reaksi Pembuatan Biodiesel dari Minyak Jelantah dengan Bantuan Katalis Bassa NaOH terhadap Sifat Fisika dan Kimia Produk Biodiesel Amirul Mukminin; Eka Megawati; Debora Ariyani; I Ketut Warsa; Junety Monde; Sapril Sapril
Journal on Education Vol 5 No 2 (2023): Journal on Education: Volume 5 Nomor 2 Tahun 2023
Publisher : Departement of Mathematics Education

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

Abstract

The effect of the transesterification reaction time of 0.6% mass % NaOH catalyst in the formation of methyl ester (biodiesel) made from used waste cooking oil as raw material 6 times usage and methanol 1: 5 mass has been studied at 60°C. The reaction times used were 30, 40, and 45 minutes. All samples resulting from the transesterification reaction have been studied for their chemical and physical properties. Parameters of chemical properties included in the Indonesian National Standard (SNI) for all samples were % FFA, pH, while the water content was above the SNI standard. The physical property parameters for all samples that meet SNI are only flash point, color and 90% distillation. While the density of all test samples was lower than the SNI which was set at 850-890 Kg/m3, the results obtained for reaction times of 30, 40 and 45 minutes were 828, 833 and 836 Kg/m3 respectively. The highest yield was owned by a reaction time of 40 minutes, namely 80%. As for the reaction time of 35 and 45 minutes respectively 79 and 65%.
ANALISA HASIL LIMBAH PLASTIK BERDASARKAN DISTILASI Eka Megawati; Bustam Sulaiman; I Ketut Warsa
PETROGAS: Journal of Energy and Technology Vol 2, No 1 (2020): March
Publisher : Sekolah Tinggi Teknologi MIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58267/petrogas.v2i1.32

Abstract

Mengingat kandungan energi yang tinggi dari bahan bakar plastik, maka potensi pemanfaatannya sebagai salah satu sumber energi memililiki prospek yang cukup bagus di masa mendatang. Tujuan penelitian ini menganalisa Spesifik Grafity (SG) dan menganalisa Initial Boiling Point (IBP) dan Final Boiling Point (FBP) dari hasil distilasi. Peralatan yang digunakan adalah satu set instalasi pengolahan plastik yang dirakit secara manual dan limbah padat plastik. Sebelum reactor dipergunakan, sampah plastik dijemur terlebih dahulu pada panas matahari. Sampah plastik yang telah dikeringkan dan dipilah dari zat pengotor dan dipotong sampai kecil. Kemudian dimasukkan ke dalam tempat umpan reaktor. Setelah itu, pemanas reactor dioperasikan. Pembakaran plastic atau proses pirolisis dilakukan sebanyak dua kali dengan total massa limbah plastik 4000 gr dan menghasilkan 975 ml. Dari hasil uji SG sebanyak dia kali, diperoleh rata-rata SG dari hasil pirolisis adalah 0,75835 dengan Initial Boiling Point (IBP) 67oC. Hal tersebut dapat diartikan bahwa SG tersebut mendekati SG Kerosin dan hasil IBP berada pada 67 oC dengan FBP yang belum terdeteksi.
ANALISA POTENSI PENINGKATAN KINERJA HHP BOILER BERDASARKAN PRINSIP NERACA PANAS I Ketut Warsa; Yuniarti Yuniarti; Eka Megawati
PETROGAS: Journal of Energy and Technology Vol 3, No 1 (2021): March
Publisher : Sekolah Tinggi Teknologi MIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58267/petrogas.v3i1.52

Abstract

The boiler is in charge of generating steam. The steam produced can be used for several purposes, among others: as a working fluid to drive steam engines such as turbine engines and compressor piston engines, as a heating medium for heating liquids so that they are always at a set temperature, as an auxiliary medium for processing and so on. . In the context of energy conservation today, energy use is very much taken into account, because energy consumption is closely related to operating costs. In principle, the more energy consumed means higher operating costs. For energy savings, it is expected that fuel consumption in the operation of the HHP Boiler is as optimal as possible, so as to provide the appropriate heat. To find out the above, it is necessary to calculate the performance of the boiler. In this case the compilers use the Heat Loss method with dual fuel (fuel oil and fuel gas). From the evaluation results of the HHP Boiler with a heat balance, the efficiency is 89.53%.
OPTIMASI FLOW FEED GAS TERHADAP FLOW AMINE PADA KOLOM CO₂ REMOVAL Eka Megawati; Yoga Hanggara Pradipta; I Ketut Warsa; Yuniarti Yuniarti
PETROGAS: Journal of Energy and Technology Vol 4, No 1 (2022): March
Publisher : Sekolah Tinggi Teknologi MIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58267/petrogas.v4i1.83

Abstract

The process of liquefying natural gas to produce a product in the form of LPG (Liquefied Petroleum Gas) takes place at a very low temperature of -160ºC. Meanwhile, the gas feed contains a component in the form of carbon dioxide (CO₂) which has a freezing point of -56ºC. The CO₂ separation process is carried out in the CO₂ removal unit which consists of an absorber and an amine regenerator. In the absorber tower, there is a separation process of CO₂ gas components which will be separated by absorption by an amine solution. Amine flow must be adjusted to the flow feed gas that enters the absorber column so that there is no excess amine in the purification process, so the purpose of this study is to determine the maximum value of flow feed gas to get the optimal value of flow amine. The calculation method for finding the maximum flow amine uses trial and error calculations, where the value of the gas flow feed is varied. Based on research can be concluded that, by varying the increase in gas flow feed from 359 m³/h obtained the maximum value of gas flow feed which is 8195 m³/h which produces an optimal flow amine value of 1200,005 m³/h.
Co-Authors Amirul Mukminin Bustam Sulaiman Debora Ariyani Dian Islamiati Eka Megawati Eka Megawati Junety Monde Sapril Sapril Wildan Azizul Umaro Yoga Hanggara Pradipta Yuniarti Yuniarti