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Tirto Prakoso
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Hidrogenasi Hidrotermal Katalitik Asam Oleat dengan Produksi Hidrogen secara in-situ Menggunakan Katalis NiO/y-Al2O3 Nainggolan, Federiko Markus Lasardo; Tirto Prakoso; Meiti Pratiwi
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 22 No 2 (2023): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol22no2.580

Abstract

Hydrogenation reaction is one of the most important reactions for the oleochemical industry to convert unsaturated fatty acids into saturated fatty acids and their derivatives. The need for large amounts of hydrogen in hydrogenation reactions will be a problem in terms of hydrogen availability and economy. Catalytic hydrothermal technology offers several advantages including the ability to produce hydrogen in-situ. The focus of this research is to evaluate the effect of metal charge addition on the catalyst, the effect of tin addition on NiO/y-Al2O3 catalyst and the effect of glycerol addition as a source of H2 production in-situ on the hydrogenation conversion of oleic acid. The catalyst was prepared by dry impregnation method. XRD, XRF and BET characterization of the catalysts confirmed the presence of Ni and Sn metals on the catalysts. Hydrogenation conversion in the reaction without glycerol using NiO/y-Al2O3 catalyst at 300oC for 6 hours did not show significant changes with the addition of metal loading. However, the addition of Sn metal increased the selectivity of in-situ H2 production used to hydrogenate oleic acid with a hydrogenation conversion of 36%. The addition of glycerol to the reactants also increased the hydrogenation conversion compared to the reaction without glycerol.
Pemodelan Proses dan Evaluasi Ekonomi Produksi Bio-Oil dari Limbah Tandan Kosong Kelapa Sawit Fanany, Muhammad Rifki; Septhian Marno; Tirto Prakoso; Aqsha Aqsha; Astri Nur Istyami; Meiti Pratiwi; Indarto, Antonius
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 22 No 2 (2023): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol22no2.587

Abstract

Oil palm empty fruit bunches (OPEFB) are solid waste which is the residue from processing palm oil into crude palm oil (CPO). The high number of OPEFB produced requires proper handling to minimize the negative impact on the surrounding environment. One of the solutions to deal with this is to process OPEFB into bio-oil using fast pyrolysis technology. Before applying the process in the real world, it is necessary to do an economic evaluation first to find out whether the process can be economically profitable. This study aims to carry out an economic evaluation of the bio-oil production process made from OPEFB using fast pyrolysis technology. Aspen Plus was used in this study to carry out process modeling, while the economic evaluation was based on several literatures such as previous books and journals. Based on the results of the economic evaluation, the total capital cost (TCC) required to build this facility is USD 1,152,686 with an operating expenditure (OpEx) of USD 168,107. Then, from the economic indicators in the form of payback period (PBP) and internal rate of return (IRR), this facility takes 4 years to reach PBP with an IRR of 22%.
Co-Authors Aqsha Aqsha Astri Nur Istyami Fanany, Muhammad Rifki Indarto, Antonius Meiti Pratiwi Nainggolan, Federiko Markus Lasardo Septhian Marno