Magang Industri PT. Wilmar Nabati Indonesia, Gresik

Vania, Asima Ariella (2026) Magang Industri PT. Wilmar Nabati Indonesia, Gresik. Project Report. [s.n.]. (Unpublished)

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Abstract

Kegiatan magang dilaksanakan di PT Wilmar Nabati Indonesia, Gresik, salah satu perusahaan agribisnis terintegrasi yang bergerak di bidang pengolahan minyak sawit dan produk turunannya. Program magang bertujuan memberikan pemahaman mengenai penerapan ilmu teknik kimia dalam kegiatan industri, mulai dari proses bisnis perusahaan, proses produksi, hingga sistem operasional pabrik. Selama kegiatan magang, dilakukan pembelajaran mengenai proses produksi Palm Kernel Solvent Plant (PKSP) yang meliputi unit preparation, extraction, dan pelleting. Selain itu, kegiatan magang juga memberikan pemahaman mengenai penerapan Keselamatan, Kesehatan Kerja, dan Lingkungan (K3L), sistem pengendalian mutu, pengolahan limbah, serta standar operasional perusahaan sebagai upaya mendukung efisiensi proses dan keberlanjutan operasional. Selain itu dilakukan penyusunan Process Flow Diagram (PFD), Process and Instrumentation Diagram (P&ID), Hazard and Operability Study (HAZOP), serta perhitungan neraca massa dan neraca energi pada seluruh peralatan proses sebagai dasar evaluasi kinerja dan dokumentasi teknis. Pembahasan pada bab akhir difokuskan pada kegiatan troubleshooting Shell and Tube Heat Exchanger Solvent Heater EX-235, yang berfungsi memanaskan pelarut n-heksana sebelum memasuki unit ekstraksi. Proses troubleshooting dilakukan melalui identifikasi penyebab penurunan kinerja alat menggunakan data operasi aktual, spesifikasi desain, dan analisis perpindahan panas. Hasil evaluasi menunjukkan bahwa korosi yang menyebabkan penutupan dua tube mengurangi luas perpindahan panas efektif sehingga temperatur keluaran pelarut tidak mencapai kondisi desain. Dampak kondisi tersebut adalah meningkatnya kebutuhan steam sebesar 3,92% untuk mempertahankan temperatur operasi yang ditetapkan. Berdasarkan hasil analisis, direkomendasikan pelaksanaan pemeliharaan preventif, inspeksi berkala, dan pemantauan kondisi heat exchanger guna mencegah penurunan performa, meningkatkan efisiensi energi, serta menjaga keandalan operasi dan kualitas produk.
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The internship was conducted at PT Wilmar Nabati Indonesia, Gresik, one of Indonesia's leading integrated agribusiness companies engaged in the processing of palm oil and its derivative products. The internship program aimed to provide a comprehensive understanding of the application of chemical engineering principles in industrial practice by introducing the company's business processes, production systems, and plant operations. Throughout the internship, an in-depth understanding was developed of the Palm Kernel Solvent Plant (PKSP) production process, encompassing the preparation, extraction, and pelleting units. In addition, the internship provided practical exposure to the implementation of Occupational Health, Safety, and Environment (OHSE) management, quality control systems, wastewater treatment, and standard operating procedures that support process efficiency and sustainable plant operations. Furthermore, engineering activities included the preparation of Process Flow Diagrams (PFDs), Process and Instrumentation Diagrams (P&IDs), Hazard and Operability Studies (HAZOPs), as well as mass and energy balance calculations for all major process equipment to support process evaluation and technical documentation. The final chapter focuses on the troubleshooting of the Shell and Tube Heat Exchanger Solvent Heater EX-235, which is responsible for heating n-hexane solvent prior to the extraction process. The troubleshooting was carried out by identifying the root cause of the equipment's performance degradation through the analysis of actual operating data, design specifications, and heat transfer calculations. The evaluation revealed that corrosion-induced blockage of two heat exchanger tubes reduced the effective heat transfer area, preventing the solvent outlet temperature from reaching its design specification. Consequently, the steam requirement increased by 3.92% to maintain the target operating temperature. Based on the findings, the implementation of preventive maintenance, periodic inspections, and continuous condition monitoring of the heat exchanger is recommended to mitigate performance deterioration, improve energy efficiency, enhance operational reliability, and ensure consistent product quality.

Item Type:	Monograph (Project Report)
Uncontrolled Keywords:	Palm Kernel Solvent Plant, Shell and Tube Heat Exchanger, Neraca Massa, Neraca Energi, Efisiensi Energi, Palm Kernel Solvent Plant, Shell and Tube Heat Exchanger, Mass Balance, Energy Balance, Energy Efficiency.
Subjects:	T Technology > TP Chemical technology > TP155.5 Chemical plants--Design and construction
Divisions:	Faculty of Vocational > 24305-Industrial Chemical Engineering
Depositing User:	Asima Ariella Vania
Date Deposited:	15 Jul 2026 09:06
Last Modified:	15 Jul 2026 09:06
URI:	http://repository.its.ac.id/id/eprint/134931

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