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All Journal Equilibrium Journal of Chemical Engineering Jurnal Penelitian Inovatif SAINTI: Majalah Ilmiah Teknologi Industri PATRIOTIK: Jurnal Inovasi dan Pemberdayaan Masyarakat
Zulkipli, Rohiman Ahmad
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Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health Social Sciences Other

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Analisis Selisih Perhitungan Muatan Kargo High Pressure Propylene Menggunakan Fishbone Analysis pada Industri Petrokimia Zulkipli, Rohiman Ahmad; Ikhsandy, Ferry; Yahdiyan, Muhammad Yasyfi
Jurnal Penelitian Inovatif Vol 5 No 2 (2025): JUPIN Mei 2025
Publisher : CV Firmos

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54082/jupin.1526

Abstract

Selisih perhitungan muatan antara angka kapal (ship figure) dan angka darat (shore figure) kerap terjadi dalam proses bongkar muat di industri petrokimia, khususnya pada penanganan kargo High Pressure Propylene. Ketidaksesuaian ini dapat menimbulkan ketidakefisienan operasional serta potensi kerugian finansial. Penelitian ini bertujuan untuk menganalisis perbedaan kuantitas muatan selama proses discharge dan mengidentifikasi strategi untuk meminimalkan selisih tersebut. Metode yang digunakan adalah metode kuantitatif dengan membandingkan data ship figure dan shore figure dari aktivitas bongkar muat. Hasil penelitian menunjukkan adanya selisih sebesar 6,388 metrik ton. Temuan ini menekankan pentingnya pengambilan data yang akurat, pengendalian tekanan, serta kestabilan kapal selama proses bongkar, guna meningkatkan ketepatan pengukuran dan menjamin keandalan proses transfer kargo di industri petrokimia.
Pengelolaan Sampah Plastik Dengan Mesin Pencacah di Infrastruktur Industri Pengolahan Sampah Terpadu Asari Rahayu, Puji; Tutuka, Rachmadi; Pasaribu, Monita; Jerry, Jerry; Ikhsandy, Ferry; Luthfi, Muhammad Zulfikar; Betariani, Khairunisa; Nury, Dennis Farina; Zulkipli, Rohiman Ahmad; Nugroho , Muhammad Erwin Cahyo
PATRIOTIKA: Jurnal Inovasi dan Pemberdayaan Masyarakat Vol 1 No 1 (2025): May 2025
Publisher : Universitas Nahdlatul Ulama Sumatera Utara

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Abstract

The increasing problem of plastic waste has become one of the biggest environmental challenges in the world today. To overcome this problem, the development of plastic shredding technology is an effective solution to support the plastic recycling process. This study aims to design and develop an efficient and environmentally friendly plastic waste shredding machine, which is able to reduce the volume of plastic waste and facilitate the recycling process. The research methodology includes identifying user needs, literature studies, developing design concepts, detailed design using software, prototyping, and testing and evaluating machine performance. The designed shredding machine has a shredding capacity of 50 kg/hour with lower energy consumption compared to existing commercial shredding machines. Consistent machine testing in producing plastic flakes with uniform sizes, which are suitable for further recycling processes. Performance analysis relates to machines that are able to process various types of plastic, including PET, HDPE, and PP, with high shredding efficiency. The developed plastic shredding machine is able to provide a practical solution for plastic waste management by optimizing the recycling process and reducing negative impacts on the environment. The development of this plastic shredding machine is expected to contribute significantly to efforts to reduce plastic waste and support environmental sustainability.
IDENTIFIKASI BAHAYA DAN EVALUASI RISIKO STEAM DRUM DENGAN HAZOP DI INDUSTRI PETROKIMIA Tutuka, Rachmadi; Aziz, Arizal Abdul; Zulkipli, Rohiman Ahmad; Nury, Dennis Farina
SAINTI: Majalah Ilmiah Teknologi Industri Vol. 22 No. 1 (2025)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v22i1.60

Abstract

Steam drum merupakan salah satu komponen utama dalam sistem boiler pada unit Steam Cracker Unit yang berperan penting dalam proses pemisahan uap dan air. Penelitian ini bertujuan untuk mengidentifikasi bahaya serta mengevaluasi risiko pada steam drum menggunakan metode Hazard and Operability Study (HAZOP). Parameter yang dianalisis meliputi tekanan, level air, suhu, dan aliran steam. Setiap penyimpangan (deviation) dianalisis berdasarkan penyebab (cause), dampak (consequence), serta rekomendasi mitigasi (recommendation) untuk meningkatkan keselamatan proses. Hasil analisis menunjukkan beberapa risiko dengan kategori High Risk seperti overpressure, low water level, dan high temperature dengan nilai risk ranking sebesar 16. Rekomendasi mitigasi meliputi perawatan berkala, kalibrasi sensor, penambahan sistem alarm, serta penguatan prosedur operasional. Penerapan metode HAZOP dinilai efektif dalam membantu identifikasi bahaya dan penentuan strategi mitigasi pada steam drum boiler, sehingga dapat meningkatkan keselamatan dan keandalan proses di industri petrokimia.
The Impact of Inject Chemical Neutralization toward the PH Change in the Reject Water Management on the Raw Water Treatment Facilities in Petrochemical Industries Tutuka, Rachmadi; Ikhsandy, Ferry; Zulkipli, Rohiman Ahmad; Iman, Alamul; Arvianto, Rizky Ibnufaatih
Equilibrium Journal of Chemical Engineering Vol 9, No 2 (2025): Volume 9, No 2 December 2025
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v9i2.107710

Abstract

ABSTRACT. The water waste management in Petrochemical Industry becomes the significant challenge in maintain environmental quality—particularly in regulating pH levels in accordance with the standards set by Indonesia’s Ministry of Environment and Forestry Regulation No. 5 of 2014—chemical injection is widely employed. This method involves the addition of acidic or alkaline agents to neutralize the pH of reject water. This study evaluates the effect of varying chemical injection dosages to determine the optimal dose required to achieve a pH range of 6 to 9. The findings demonstrate a direct relationship between the increase in chemical injection dosage and changes in pH levels, where higher dosages consistently raised the pH, stabilizing at an average value of 8.2. Over a one-month monitoring period, the optimal dosage was identified as 0.085 m³, resulting in an average pH of 6.47. Excessive dosing is not only less effective but also led to increase operational costs, reaching up to IDR 872,235. Thus, optimizing chemical injection dosage is critical—not only for ensuring compliance with environmental pH standards but also for minimizing chemical consumption and reducing operational expenditures.Keywords:Inject chemicals, Wastewater treatment, pH, Reject water
Co-Authors Alamul Iman Arvianto, Rizky Ibnufaatih Aziz, Arizal Abdul Betariani, Khairunisa Dennis Farina Nury Ferry Ikhsandy Jerry, Jerry Monita Pasaribu Muhammad , Yafi Fadhlurohman Muhammad Erwin Cahyo Nugroho Muhammad Zulfikar Luthfi Nugroho , Muhammad Erwin Cahyo Puji Rahayu Rachmadi, Rachmadi Tutuka, Rachmadi Yahdiyan, Muhammad Yasyfi