Hery Karjadi, Jujun (2026) SIMULASI PRODUKSI VINYL CHLORIDE MONOMER (VCM) DAN OPTIMISASI ENERGI PADA JARINGAN PENUKAR PANAS MENGGUNAKAN ANALISIS PINCH. Master thesis, Fakultas Teknik Universtas Sultan Ageng Tirtayasa.

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Abstract

Jujun Hery Karjadi, 2025, “Simulation of vinyl chloride monomer (VCM) production and heat exchanger network optimization using Aspen HYSYS and pinch analysis”. Final Project Assignment, Master of Chemical Engineering Study Program, Faculty of Engineering, Sultan Ageng Tirtayasa University. First Supervisor Prof. Teguh Kurniawan, S.T., M.T., Ph.D, and second Supervisor Dr. Alia Badra Pitaloka, S.T., M.T. VCM serves as an essential raw material to produce polyvinyl chloride (PVC), a polymer widely applied across various industries due to its corrosion resistance, flexibility, durability, and cost-effectiveness. However, a major challenge in the VCM production process lies in its high energy demand. This research aims to optimize thermal energy consumption and propose strategies to enhance energy efficiency in the VCM production process. These efforts involve modifications to the heat exchanger network to reduce energy demand and operational costs. Specifically, the approach focuses on recovering heat from the reactor outlet stream to preheat the reactor feed, thereby reducing overall energy consumption. Furthermore, this research examines the impact of operating at 50%, 75%, and 100% of the design capacity on energy costs, net profit, return on investment (ROI), and payback period (PBP). Process simulations of both the base and modified VCM configurations utilize Aspen HYSYS and Aspen Energy Analyzer. The results indicate a reduction in energy demand of 1.05E+08 kJ/h between the base and modified processes. This reduction results from a decrease in heating energy by 5.47E+07 kJ/h and cooling energy by 5.06E+07 kJ/h. The optimal configuration resulted at 100% production capacity following implementation of the modified VCM configuration. Under these conditions, the net profit reaches $3.14E+06, with an energy cost of $15.5 per ton of VCM, an ROI of 98.1%, and a PBP lower than one year. Overall, the proposed process modification effectively enhances energy efficiency in VCM production while supporting sustainability initiatives in the petrochemical industry through a substantial reduction in external energy consumption. Keywords: Vinyl Chloride Monomer (VCM), Process simulation, Heat exchanger network, Energy optimization, Aspen HYSYS.

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