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All Journal INDONESIAN JOURNAL OF APPLIED PHYSICS Petrogas : Journal of Energy and Technology
Selvia Sarungu
STT Migas Balikpapan
Astronomy Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

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Optimizing an Octane Number of Motor Gasoline (MOGAS) 91 RON with Blending Methods Ahmad Mustafid Miftahul Huda; Subagjo Wakimin; Selvia Sarungu
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 7, No 2 (2017): IJAP Volume 07 ISSUE 02 YEAR 2017
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v7i2.13002

Abstract

Motor Gasoline (MOGAS) that serves as modifiers thermal energy into mechanical energy with a Research Octane Number (RON) of 91 was produced by mixing (blending) of two components. RON are high is one of MOGAS specifications needed for good engine performance. To obtain a MOGAS with high RON usually needs additional materials, chemical components. In this work we don’t need any additional materials to increasing the RON. In the field of oil and gas blending method is a method that is widely used to acquire new products that are superior and achieve quality standards. The components used in blending these are products with a value of RON 88 and 92. Examination of specific gravity (ASTMD-1298) was conducted to obtain specific gravity (SG) and temperature observations (T), while the ASTMD-86 distillation examination was conducted to determine the components in materials. The results showed that the product specifications in accordance with the existing products on the market. The acquisition of distillate reached 95% with losses of about 3.9%, and the residue of 1.1%.
ANALISA KARAKTERISTIK BIODIESEL HASIL TRANSESTERIFIKASI MINYAK JELANTAH MENGGUNAKAN KATALIS KOH Selvia Sarungu; Lukman Lukman; Sofia Lanrianna Putri Paelongan
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.v3i2.73

Abstract

The increasing demand for fossil fuels is resulting in the increase of the price and even some serious environmental problems. Researchers continue to develop research to find solutions to these problems. Renewable energy is needed to become an alternative fuel. Used cooking oil derived from vegetable oils and animal fats are considered feasible as the alternative fuels to replace petroleum because of their renewable nature. Used cooking oil after being reacted with methanol and a catalyst can be synthesized into biodiesel because it contains triglycerides. This research was conducted to obtain the characteristics of biodiesel yields that meet SNI quality standards. In the transesterification process, methanol and KOH are reacted with used cooking oil in a ratio of 1:2, 1:3 and 1:4. The transesterification process was carried out in a three necks flask and refluxed at an operating temperature of 60℃ for 60 minutes and deposited for 24 hours. Then it was washed until the biodiesel pH was neutral and was heated until the water content disappeared. After obtaining the biodiesel yield from the transesterification of used cooking oil, the analysis of characteristic was carried out to assess whether the produced biodiesel had met the SNI standards or not. The characteristics that were obtained from the biodiesel indicated that the density, saponification rate, free fatty acids and water content had met the biodiesel quality standards of SNI 7182:2006. Meanwhile, the acid numbers and viscosity did not meet the biodiesel quality standards of SNI 7182:2006.
Co-Authors Ahmad Mustafid Miftahul Huda Lukman Lukman Sofia Lanrianna Putri Paelongan Subagjo Wakimin