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Jurnal Rekayasa Proses
ISSN 1978-287X · Universitas Gadjah Mada · 30 artikel di indeks
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Artikel Jurnal
Densification process of Merbau (Intsia bijuga) and Matoa (Pometia pinnata J.R. Forster & J.G Forster) Sawdust Waste for Biomass Based Solid Fuel Source in West Papua Indonesia: Optimization using Response Surface Methodology (RSM)
Merbau (Intsia bijuga) and matoa (Pometia pinnata J.R. Forster & J.G Forster) are two amongst many prominent biomass sources from West Papua, Indonesia. With their versatile characteristics, merbau and matoa wood are used in many industries such as furniture, music instrument, and many other…
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Artikel Jurnal
The Effects of Quartic Term Mathematical Model on The Concentration Profile of Fixed Bed Gas Adsorber
The need for a reliable mathematical model depicting the process inside a column adsorber has become a requisite in designing an effective gas adsorber. Even though this task can be done by using commercial software, it is still important to get an understanding of how the entire process happens…
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Artikel Jurnal
Kinerja Internal Reboiler Tipe Vertical Tubular Baffle pada Proses Distilasi Etanol secara Batch
The performance of ethanol distillation is determined by the type of reboiler used in the distillation column. This study aims to determine the effect of differences in diameter and height of internal reboiler tubes, as well as feed content on ethanol distillate concentration and distillation…
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Artikel Jurnal
In-Situ Catalytic Pyrolysis of Spirulina platensis residue (SPR): Effect of Temperature and Amount of C12-4 Catalyst on Product Yield
Currently, dependence on fossil energy, especially petroleum, is still high at 96% of the total consumption. One solution to overcome fossil energy consumption is processing alternative energy sources derived from microalgae biomass. This study aims to study the pyrolysis of microalgae with the…
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Artikel Jurnal
Studi Pengaruh Variabel Proses dan Kinetika Ekstraksi Nikel dari Bijih Nikel Laterit Menggunakan Larutan Asam Sulfat pada Tekanan Atmosferik
Leaching at atmospheric pressure is one of the leaching methods of concern because it has several advantages, namely that it can process low-level nickel ore, can operate at temperatures >100 ⁰C at atmospheric pressure, and can be used in saprolite and limonite ores. In this research, nickel…
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Artikel Jurnal
Kinetics Study of Paracetamol Production from Para-Aminophenol and Acetic Anhydride
In the last decade, Indonesia intensifies the efforts to reduce pharmaceutical imports. One of the initiatives is establishing a paracetamol production facility to start operating in 2024. Kinetics study is needed as a basis to design the paracetamol reactor. This study investigated the optimal…
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Artikel Jurnal
Perbandingan Performa Refrigeran Propana dan Amonia pada Siklus Refrigerasi Dew Point Control Unit (DPCU)
Natural gas, that has been processed and met certain specifications, is sent to consumers through pipeline. Gas condensation within the pipeline should be avoided because it has negative impacts. Hydrocarbon dew point is a measure of the easiness of gas condensation. To meet the hydrocarbon dew…
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Artikel Jurnal
Eco-friendly Alkyd Resins Based on Vegetable Oil: Review
The alkyd resin industry currently needs environmentally friendly raw materials, which emphasized the aspect of sustainability. Alkyd resin is a polymer product with oil as raw material which is widely used in the paint, coating, and other industries. The abundant demand for alkyd resin has led to…
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Artikel Jurnal
Preparasi Katalis MgO/C dari Pirolisis Polimer Berbasis Magnesium Salisilat dan Aplikasinya untuk Reaksi Transesterifikasi
The objective of the study is to produce carbon-based magnesium oxide (MgO) solid base catalyst by pyrolysis of phenolic resin and to examine the material effectiveness as a catalyst for transesterification reaction. The phenolic resins were prepared by polymerization process of phenol, derivative…
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Artikel Jurnal
Evaluasi Aspek Teknis dan Lingkungan Instalasi Pengolahan Air Limbah (IPAL) Komunal di Kabupaten Sleman Yogyakarta
As the producer of waste (both in solid form and wastewater), the increase of population creates a dominant effect on environmental problems. Escalation of the amount of domestic wastewater has led to greater sanitation problems. Indonesian government has carried out several programs for improving…
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Artikel Jurnal
Optimasi Biaya dalam Proses Pemurnian Metanol untuk Mengurangi Resin sebagai Limbah Bahan Berbahaya dan Beracun di PT Kaltim Methanol Industri
Purification process of raw methanol from its impurities to produce pure methanol at PT. Kaltim Methanol Industri (PT KMI) is carried out by several steps, including degassing, distillation, and adsorption. One of the impurities, tri methyl amine (TMA), could be removed by adding NaOH. Another…
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Artikel Jurnal
Studi Penambahan Etilena Glikol dalam Menghambat Pembentukan Metana Hidrat pada Proses Pemurnian Gas Alam
The gas processing facilities are designed to significantly reduce the impurities such as water vapor, heavy hydrocarbon, carbon dioxide, carbonyl sulfide (COS), benzene-toluene-xylene (BTX), mercaptane, and the sulfur compounds. A small amount of those compounds in natural gas is not preferable…
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Artikel Jurnal
Pengaruh pH Ekstraksi pada Pewarnaan Batik Sutera Menggunakan Pewarna Alami Kulit Kayu Mahoni (Switenia Mahagoni)
The natural dye extracted from Swietenia mahagoni was applied to silk batik. Mahagoni bark is known to contain dyestuff components such as flavonoids and tannins. The dye compound was extracted using water at pH values of 6 (original pH extract), pH 2 (acid), and pH 12 (base) at 100 °C for 1 hour…
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Artikel Jurnal
Pengaruh Variasi Suhu Hidrotermal dan Aktivator Kalium Hidroksida (KOH) terhadap Kemampuan Hydrochar sebagai Adsorben pada Proses Adsorpsi Limbah Cair Metilen Biru
Oil palm shell is one of biomass-wastes which is abundantly found in palm oil industries. Its economical value can be enhanced by converting it into hydrochar using a hydrothermal carbonization process (HTC). In this study, preparation of oil palm shell hydrochar was performed and the material was…
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Artikel Jurnal
Pengaruh Reagen Pelindian pada Sintesis ZnO dari Debu Tungku Busur Listrik
ZnO nanoparticle was synthesized by a simple hydrometallurgical method using raw material of electric arc furnace dust (EAFD),which is a solid waste in the stainless steel industry. Electric arc furnace dust contains 68.81% Zn in the form of zincite (ZnO) and simonkolleite (H10Cl2O9Zn5). The…
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Artikel Jurnal
Tip-Cylinder Electrode Plasma to Enhance the Coating of Conductive Yarn Process
This study aims to develop conductive textile materials using a polyester textile yarn by applying a knife coating method and pre-treatment of a tip-cylinder plasma electrode. In this research, carbon ink was coated on polyester staple yarn which was given a pre-treatment with a plasma generator…
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Artikel Jurnal
The Effects of Aloe Vera Gel Addition on the Effectiveness of Sunscreen Lotion
especially in cosmetics. The aloe plant that is cultivated in Indonesia to supply this industry is Aloe chinensis Baker. This research is to determine the effects of Aloe vera gel extract on the effectiveness of sunscreen lotion. The steps taken included Aloe vera gel extraction, flavonoid…
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Artikel Jurnal
Potensi Polisakarida dari Limbah Buah-buahan sebagai Koagulan Alami dalam Pengolahan Air dan Limbah Cair: Review
Nowadays, various studies related to utilization of biobased materials as natural coagulants have been explored. Based on the source, natural coagulants can be classified as animal, vegetable, or microbial based. Furthermore, based on the active ingredients, it can be classified as protein…
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Artikel Jurnal
Aplikasi Mordan Tanin pada Pewarnaan Kain Batik Katun Menggunakan Warna Alam Tingi (Ceriops tagal)
The aim of the study was to evaluate the performance of tannin mordant from Psidium guajava leaves, Peltophorum pterocarpum bark, and Coffea arabica leaves in cotton batik dyeing using tingi bark (Ceriops tagal). This research was conducted by initial quantitative analysis of each extract to…
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Artikel Jurnal
Kinetika Pembentukan Struvite Kristal Menggunakan Zeolit Alam sebagai Adsorben pada Aeration Cone Column Crystallizer
Wastewater from the fertilizer industry contains a high concentration of PO43- and NH4+. Those ions formed deposits that frequently clogged the conduits and reduced the pump efficiency of the wastewater treatment plant. A high concentration of PO43- and NH4+ in this wastewater can be used as a…