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All Journal INDONESIAN JOURNAL OF APPLIED PHYSICS International Journal of Engineering Continuity
Samuel Pangeran Aletheia
Calvin Institute of Technology
Astronomy Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

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Techno-Economic Analysis of Blue Methanol Production from Natural Gas with Carbon Capture in Indonesia Samuel Pangeran Aletheia; Meyland Meyland
International Journal of Engineering Continuity Vol. 3 No. 2 (2024): ijec
Publisher : Sultan Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58291/ijec.v3i2.288

Abstract

Methanol market in Indonesia is projected to grow with Compound Annual Growth Rate of 3.2% by 2034. Utilizing natural gas as a feedstock and employing carbon capture and storage technology using activated metildietanolamin with piperazine (MDEA-PZ), the process is designed to produce methanol with a low carbon footprint. The process design and simulation were carried out using Aspen HYSYS, focusing on mass and energy balances across pre-treatment, syngas formation, methanol synthesis, purification and carbon capture stages. The pilot-scale plant with a capacity of 100,000 tons per year located in the Special Economic Zone (KEK) Arun, Aceh, demonstrating promising results with an Internal Rate of Return (IRR) of 11.73%, a Net Present Value (NPV) of USD 166.63 and levelized cost of methanol (LCOM) of 611.61 $/ton MeOH. Compared to other low emission chemical plant, this plant offers promising economic feasibility.
Water-Oil Separation using Computational Fluid Dynamics Approach: Case Study in Free Water Knockout Samuel Pangeran Aletheia
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 16, No 1 (2026): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v16i1.101959

Abstract

This study presents a comprehensive simulation of the Free Water Knockout process, a prevalent technique in the petroleum industry for separating water from crude oil. Leveraging Computational Fluid Dynamics, the research employs the Euler–Euler approach integrated with an inhomogeneous population balance model and a realizable k–ε turbulence model to capture the complex multiphase dynamics within the separator. A key contribution of this study lies in its validation against field data from an oil facility in South Sumatera, Indonesia, using an independent sample t-test (p = 0.13), confirming the model's reliability. The simulation achieved a separation efficiency of up to 48.46%, which, while moderate compared to centrifuge-based systems, demonstrates competitive performance for gravity-driven Free Water Knockout units under high-throughput conditions. This work advances Computational Fluid Dynamics based of the Free Water Knockout modelling by incorporating coalescence dynamics and turbulence effects, offering a validated framework for optimizing separator design and operation in industrial settings.
Co-Authors Meyland Meyland