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windhu Nugroho
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Studi Pencampuran Batubara untuk Memenuhi Permintaan Konsumen di PT Bukit Baiduri Energi, Kutai Kartanegara, Kalimantan Timur Ferry Potik Kurniawan; Agus Winarno; Henny Magdalena; Windhu Nugroho; Rety Winonazada
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 3 No. 4 (2025): Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v3i4.1092

Abstract

The coal blending process conducted by PT. Bukit Baiduri Energi (PT. BBE) aims to achieve coal quality specifications that align with customer requirements. PT. BBE possesses multiple coal seams with varying quality characteristics, necessitating a carefully planned blending system with precise proportions to produce coal products that meet market demands. The objectives of this study are: to plan the quantity and quality parameters for coal blending, to evaluate the actual outcomes of coal blending in terms of quantity and quality, and to identify the factors contributing to discrepancies between the planned and actual coal quality following the blending process. To determine the optimal quantity and quality of each coal product in the blending plan, the simplex method was employed with the assistance of POM-QM for Windows version 5 software, alongside the weighting factor method. The final coal blending plan resulted in a total of 55,000 MT with the following quality specifications total moisture of 20.00% (ar), ash content of 6.10% (ad), total sulfur of 1.65% (ad), and a calorific value of 5,350 kcal/kg (ad). The actual blending outcome yielded the same quantity of 55,000 MT, with quality parameters as follows: total moisture of 20.18% (ad), ash content of 5.60% (ad), total sulfur of 1.35% (ad), and a calorific value of 5,340 kcal/kg (ad). The analysis of quality discrepancies revealed several contributing factors the presence of water accumulation in the ROM Stockpile following rainfall, which increased total moisture, the inadvertent inclusion of foreign materials into the feeder, resulting in elevated ash content, the unintentional mixing of coal from different product types, which led to inconsistencies in total moisture, ash content, total sulfur, and calorific value, and the rise in total moisture, which adversely affected the calorific value.
Co-Authors Agus Winarno Agus Winarno Agus Wirnarno Agus Winarno Al Mulyadi Albertus J Pontus Albertus Juvensius Pontus Anggi Permatasari Anisah Azizah Ardhan Ismail Bagus Hidayat Benny Christian BB Bunga Bunga Dian Isnandar Donal Evita Endar Apriliana Evo Kristina Faras Dwi Putra Ferry Potik Kurniawan Gideon Samari Suno Hamzah Umar Harjuni Hasan Henny Magdalena Ibnu Syafi’i Rhamadany Ilma Nurjanah Indri Tenri Datu Jhony Maxi Harjadi Liganic Saprudin Lucia Litha Respati M Dandy Al Fansya M. Dwi Triosusanto Ma Revia Oktaviani Marlinus Matius Lollong Muhammad Ashar Alias Suara Muhammad Rayhan Fhadillah Muhlisin Efendi Natalis Pasereng Nirwana Putri Nur Muhammad Agung Orfinada Sultan Danilof Orisius Oktavianus Pranajiwa Putri Pebrian Rety Winonazada Revia Oktaviani Revia Oktaviani Rifki Amin Ma’sum Rofi Taufiqurrahman Sahar S Sahrul Ramadhana Sakdillah Sakdillah . Sakdillah Sakdillah Salaho Dina Devy Setiawan Tandi Shalaho Dina Devy Shalaho Dyna Devy Siti Asmasari Tommy Aria Pradana Tommy Trides Widya Indriani Yekeskiel Nimsi Yudi Sapta Prastya