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All Journal CHEMICA Jurnal Teknik Kimia Agrivet : Jurnal Ilmu-Ilmu Pertanian dan Peternakan (Journal of Agricultural Sciences and Veteriner) Konversi JURNAL KONVERSI JTERA (Jurnal Teknologi Rekayasa) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan JIEMS (Journal of Industrial Engineering and Management Systems)
Sarah Dampang
Universitas Singaperbangsa Karawang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry 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 Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Journal : Konversi

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TRANSESTERIFICATION OF BIODIESEL FROM WASTE COOKING OIL USING CAO NANOCATALYST Cindi Ramayanti; Sarah Dampang
Konversi Vol 8, No 2 (2019): Oktober 2019
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v8i2.7163

Abstract

The production costs of biodiesel based on vegetable oil is not economical, so it is difficult for biodiesel to compete with petrodiesel. Waste cooking oil can be used as a source of raw materials for biodiesel production. This research aims to produce biodiesel from waste cooking oil. The initial stage is to pretreatment of waste cooking oil. At this step, the waste cooking oil is filtered to separate impurities from the raw material. After that, it is heated to 100 oC to remove the water content. The second stage is transesterification. At this stage, the reaction time remains for one hour at a temperature of 65 oC. the product is centrifuged to separate the catalyst. The highest yield was obtained in the 12: 1 molar ratio variable and the amount of catalyst 3%, which was 0.922. Yield obtained ranged from 0.853-0.922. An increase in the molar ratio is significant enough to increase the amount of yield. However, increasing the amount of catalyst especially from 2% to 3% is not significant enough to increase biodiesel yield. The characteristics of biodiesel produced are in accordance with SNI Biodiesel, density 870 Kg / cm3, viscosity 4.25 cSt, flash point 170, and acid number 0.4 mg-KOH/g biodiesel.
PIPE CONDITION ANALYSIS USING ULTRASONIC TESTING TO PREDICT THE REMAINING SERVICE LIVE (RSL) OF THE PETROLEUM DISTRIBUTION PIPELINE Sarah Dampang; Nanang Burhan; Cindi Ramayanti
Konversi Vol 8, No 2 (2019): Oktober 2019
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v8i2.7173

Abstract

The pipeline network in the petroleum industry is very susceptible to corrosion.  Corrosion problems can cause losses that are not small financially.  Corrosion that occurs in underground pipes can be in the form of external corrosion on the outer surface of the pipe caused by acid content in the air or in the soil or internal corrosion inside the pipe caused by petroleum content in the form of water, carbon dioxide (CO2) and hydrogen sulfide (H2S).  Corrosion causes the useful or service life of these pipes to be shorter than expected.  This study aims to measure the Remaining Service Life (RSL) of the petroleum distribution pipeline as an initial step of preventive action to avoid fatal consequences of corrosion problems.  In this study, ultrasonic testing was used as one of the Non Destructive Testing (NDT) methods to check the condition of the petroleum distribution pipe's wall.  In this study, it is found that the Remaining Service Life (RSL) of the pipeline under investigation is 25 years.
Co-Authors Asep Maulana Badaruddin Andi Picunang Billy Nugraha Billy Nugraha Cindy Ramayanti Danny Ramdani Endah Purwanti Eri Widianto Ibrahim Ibrahim Iqbal Maulana Kusnadi, Kusnadi Najmudin Fauji Nanang Burhan Nugraha, Asep Erik Ramayanti, Cindi Reni Rahmadewi Riza Ibnu Adam Rizal Hanifi Suhaeni Suhaeni Tesa Nur Padilah Vita Efelina