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All Journal JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY
Muhammad Syukri Nur
Unknown Affiliation
Energy Industrial & Manufacturing Engineering Mechanical Engineering

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Hydrogen Production Simulation From Empty Palm Oil Bunches Using Aspen Plus Sapari, Budiman; Hotman H. Simatupang; Isra Anwar; Muhammad Syukri Nur
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 9 No. 1 (2025): June 2025 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v9i1.12046

Abstract

A simulation model of biomass gasification for hydrogen production has been further developed using Aspen Plus. The model developed is based on Gibbs free energy minimization using the finite equilibrium method. The objective was to study the effect of important parameters such as gasification temperature, steam to biomass ratio and shift reaction temperature on hydrogen concentration. Simulations were conducted for palm empty bunch feedstock. The simulation results show that the main gas components in the synthetic gas are H₂, CO, CO₂, CH₄. Hydrogen gas increases with increasing temperature, hydrogen concentration increases from 22 kg/hour to 64 kg/hour but CH₄ concentration decreases from 50 kg/hour to 0 kg/hour with increasing temperature from 500-800˚C under 500 kg/hour steam flow rate operation.
Sustainable Biodiesel Industry: A Techno-Economic Framework For Evaluating Biodiesel Production Uhanto; Muhammad Syukri Nur
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 9 No. 2 (2025): December 2025 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v9i2.14134

Abstract

This study evaluates the technical and economic aspects of the biodiesel industry, focusing on factors affecting production feasibility and industry sustainability. Secondary data for the analysis were sourced from published and Scopus-indexed research. The study identifies biodiesel characteristics, production processes, techno-economic aspects, and the biodiesel market. The analysis indicates that biodiesel has significant potential as an alternative to fossil fuels. It shares comparable energy density and cetane numbers with fossil diesel while providing superior lubrication properties and lower CO₂ emissions. Biodiesel transesterification achieves high efficiency with alkaline catalysts and feedstocks with low free fatty acid content, resulting in higher biodiesel yields. From an economic perspective, feedstock costs constitute 75–80% of the total biodiesel production cost, posing a major challenge due to the high price volatility of feedstocks in the market. Supportive policies for utilizing local and non-food feedstocks are necessary to reduce dependence on similar and relatively expensive raw materials. The financial sustainability of biodiesel production depends on production process efficiency and feedstock price stability. Economic feasibility is measured using indicators such as Net Present Value (NPV) and Internal Rate of Return (IRR). This knowledge provides valuable insights for developing more effective strategies in the biodiesel industry, supported by targeted policies that enhance both economic and environmental viability.
Co-Authors Hotman H. Simatupang Isra Anwar Sapari, Budiman Uhanto