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All Journal Jurnal Keteknikan Pertanian Tropis dan Biosistem Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Safitri, Lisma
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Agriculture, Biological Sciences & Forestry Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Mechanical Engineering

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Minimize Oil Losses in Palm Oil Mill through Optimalization of Sludge Separator Performance Fadhilah, Nabillah Nissya; Safitri, Lisma; Alfian, Ulil Albab; Dharmawati, Nuraeni Dwi; Renjani, Rengga Arnalis
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 1 (2024): March 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i1.123-131

Abstract

One of the most important clarification station engine parts for reducing oil loss is the sludge separator. The sludge separator uses high-speed centrifugal force to capture any oil that is still adhered to the sludge. This study aims to improve the working performance of sludge separator to minimize oil losses through variations in feeding rate, oil under flow and temperature of flow rate. The experiment was conducted at one of the palm oil mills in Central Kalimantan, with a capacity of 45 ton/h. Variations in sludge separator feed rates: 23, 25 and 27 tons/hour. Oil underflow variations: 5%, 6%, and 7%. Feed temperature variations are: 90°C, 93°C, and 95°C. Feed temperature variations:  90°C, 93°C, and 95°C. Based on research that has been done, using bait rate of 23 ton/h, temperature 90 °C, and oil underflows 5%, resulting in oil losses of 0.54% – 0.61%. This study has managed to lower oil losses in the sludge separator by 0.11 % and shows the level of stability below the standard that has been determined. Keywords:  Crude palm oil,  Oil losses,  Palm oil mill,  Sludge separator, Underflow
Analysis of Time Periodicity of Sand Cyclone Flushing for Reduce Sand Impurities at Palm Oil Mill Clarification Stations Renjani, Rengga Arnalis; Syahputra, Ridho Kukuh; Safitri, Lisma; Dharmawati, Nuraeni Dwi
Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol. 14 No. 1 (2026): April 2026
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/

Abstract

Palm oil mills used sand cyclones to reduce the sand content in sludge. High sand content (>5% in samples) and low efficiency caused pipe erosion, potential damage to decanter machines, increased maintenance costs, and reduced equipment lifespan. This study aimed to analyze the impact of flushing periodicity on the sand content in the sand cyclone outputs and to determine the optimal flushing periodicity. The experiment was conducted with six flushing time variations (P0 to P5) tested on sand cyclone 1 (SC1) and sand cyclone 2 (SC2). For SC1: P0 had a flushing time of 3.75 minutes, while P1, P2, and P3 were set at 4.25 minutes, and P4 and P5 at 4.75 minutes. For SC2, P0 had 7.50 minutes, P1 was 7.00 minutes, P2 was 7.50 minutes, P3 was 8 minutes, P4 was 7.50 minutes, and P5 was 8.00 minutes. Each treatment was replicated six times. The observed parameters included flushing water requirement, residual oil content, emulsion, moisture content, non-oil solids (NOS), and sand content. The results indicated that flushing periodicity significantly affected flushing water consumption, residual oil levels, emulsion formation, moisture content, NOS, and sand separation. The optimal flushing periodicity was able to reduce sand content in the sand cyclone overflow to 2.50%. To achieve maximum efficiency, a flushing frequency of 15 times per hour with a duration of 4.25 minutes is required for SC1, while for SC2 a flushing frequency of 8 times per hour with a duration of 7.50 minutes is required.
Co-Authors Alfian, Ulil Albab Dharmawati, Nuraeni Dwi Fadhilah, Nabillah Nissya Renjani, Rengga Arnalis Syahputra, Ridho Kukuh