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All Journal CHEMICA Jurnal Teknik Kimia JMM (Jurnal Masyarakat Mandiri) Berdikari: Jurnal Pengabdian Masyarakat Indonesia International Journal of Marine Engineering Innovation and Research Indonesian Journal of Laboratory Jurnal Pengabdian kepada Masyarakat Journal of Agritechnology and Food Processing Jurnal Teknik Kimia dan Lingkungan Jurnal Ilmiah Teknik dan Sains (JITS) Serambi Engineering Jurnal Sains Materi Indonesia
Hariyadi, Asful
Institut Teknologi Kalimantan
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Transportation Other

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Study of Palm Oil Shell Utilization as Metallurgical Coke with Variation of Bondcrete Additive Hariyadi, Asful; Khoirunnisa Hidayat, Dinda; Purwanto, Moch.
Jurnal Teknik Kimia dan Lingkungan Vol. 8 No. 1 (2024): April 2024
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jtkl.v8i1.4811

Abstract

Coke, an essential ingredient in the steel and metallurgical industries, is typically derived from bituminous coal. However, in Indonesia, where bituminous coal is rare, coke production is dependent on coal imports due to the high moisture content of local coal. An alternative approach is to use biomass, such as palm oil processing waste, for "biomass coke" to produce a more environmentally friendly coke with lower greenhouse gas emissions. Palm kernel shell waste rich in lignocellulose proved suitable for this purpose due to its compressive strength and carbon content. Pyrolysis, a technique for creating porous micro-structured carbon from palm kernel shells, was used to produce this coke substitute, offering a more sustainable energy source with a lower carbon footprint than fossil fuels. Bio-coke exhibits low moisture content (5.84%) and ash content (13.20%) due to the moisture and ash reduction effects of bondcrete adhesive during combustion. It also demonstrates substantial compressive strength (14 mPa), a high calorific value (6795 cal/g), and a favorable pore structure with a large surface area, indicating a positive influence of bondcrete adhesive on coke properties without compromising energy potential.
Granulator Performance for Urea Granule Quality: A Study on Material Balance and Recycle Seed Ratio Hidayat, Jefri Pandu; Kusuma, Muhammad Azi; Putri, Nita Ariestiana; Hariyadi, Asful
International Journal of Marine Engineering Innovation and Research Vol 10, No 1 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i1.22562

Abstract

Granulation is a critical process in quality of urea fertilizer, particularly their size distribution, significantly affects the product's performance and marketability. Urea synthesis begins with the reaction between ammonia and carbon dioxide, where ammonium carbamate is decomposed to produce urea by granulation process. This research aims evaluate the performance of granulator on urea granule size product quality based on material balance and recycle seed ratio (RSR). The granulator performance in the urea granulation process was evaluated for a production capacity of 3,500 tons/day. The methodology involves data collection from operational records in six days respectively, followed by mass balance analysis and product quality evaluation based on particle size distribution. The analysis revealed a significant deviation between design and actual data. Specifically, the design mass balance indicated a total inlet of 236,726 kg/h and a total outlet of 230,575 kg/h, resulting in a mass deficit of 6,151 kg/h attributed to dust formation and water evaporation. The measured on-size product yield was approximately 98.50% at the outlet, with the desired particle size range of 2–4.75 mm. These findings provide critical insights for process optimization and resource management in urea granulation, emphasizing the need for precise operational control to minimize material losses and ensure product quality compliance with specifications.
Optimalisasi Unit Instalasi Pengolahan Air Limbah (IPAL) dengan Penambahan Proses Biofilter Anaerob Aerob pada PLTU Tanjung Enim 3 X 10 MW PT. BEST Abdul Ghony, Muhammad; Ario Sandy; Putra Putra; Asful Hariyadi
Jurnal Ilmiah Teknik dan Sains Vol. 1 No. 2 (2023): Desember: Jurnal Ilmiah Teknik dan Sains (JITS)
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat AKIPBA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62278/jits.v1i2.16

Abstract

Air merupakan salah satu bagian penting dalam proses penunjang dunia industri, salah satunya adalah industri pembangkit listrik dimana air digunakan dalam rumah tangga seperti mushola, toilet, dan lain-lain. PLTU mempunyai instalasi pengolahan air yang disebut Water Treatment Plant (WTP). Air yang dihasilkan dari WTP digunakan sebagai air proses, domestik dan hidrant dalam proses kerja PLTU. Limbah cair PLTU TE 3X10 MW (PT. BEST) operasional berasal dari proses blowdown boiler, seluruh peralatan WTP dan pencucian atau backwashing (dengan atau tanpa bahan kimia). Sedangkan limbah domestik berasal dari hasil aktivitas manusia contohnya adalah air tinja, air sabun, dan lain lain. Limbah PLTU dan air industri mengandung sejumlah padatan dan partikel, baik yang terlarut maupun yang mengendap. PLTU TE 3X10 MW, limbah industri dan domestik kini ditampung di Instalasi Pengolahan Air Limbah (IPAL). Hasil pengujian yang dilakukan di laboratorium WTP PLTU TE 3X10 MW menunjukkan bahwa limbah operasional dan domestik yang dihasilkan PLTU mengandung bahan pencemar yang melebihi baku mutu yaitu fosfat (PO4). Metode pada penelitian penurunan bahan pencemar ini adalah Biofilter Aerob dan anaerob. Hasil penelitian menunjukkan bahwa terjadi penurunan kadar pencemar keseluruhan dari indikator dengan efisiensi dampak paling jelas terlihat pada kadar fosfat sebesar 68%.
Co-Authors Abdul Ghony, Muhammad Adhe Paramita Ahmad Maulidi Ario Sandy Bangkit Gotama Dian Rahmawati Fachri Febrianto Fachry Abda El Rahman Fadli Robiandi Hermiyati, Indri Hidayat, Jefri Pandu Ilham Faathir Putra Jefri Pandu Hidayat Jessika Juwita Payungallo Khoirunnisa Hidayat, Dinda Kusuma, Muhammad Azi Lestari, Rizka Lusi Ernawati Made Yuri Suryani Maryo Inri Pratama Meidi Arisalwadi Muhammad Abdul Ghony Muhammad Daffa Rujid MUHAMMAD YUSUF Nadia Puspita Ayu Ningtyas Nita Ariestiana Putri Novi Sylvia Nurry, Dennis Farina Nurwijayanti Purwanto, Moch. Putra Putra Putri, Nita Ariestiana Ranti Kusuma Wardhani Ratnaningsih, Wahyu Reza, Mutia Rika Awalin Safitri Riza Alviany Rizka Ayu Yuniar Sembiring, Rinawati Sitinjak, Tria Madeline Thalia Winda Sari Umar Mustofa Umi Sholikah Warmiati