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All Journal JURNAL KIMIA SAINS DAN APLIKASI Jurnal Pendidikan Teknologi dan Kejuruan Jurnal Sains Materi Indonesia Agrointek Teknika: Jurnal Sains dan Teknologi ROTOR: JURNAL ILMIAH TEKNIK MESIN Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir Jurnal METTEK (Jurnal Ilmiah Nasional Dalam Bidang Ilmu Teknik Mesin) Journal Of Chemical Process Engineering (JCPE) INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Jurnal Rekayasa Material, Manufaktur & Energi Metalurgi Teknomekanik Journal of Materials Exploration and Findings Metalurgi Recent in Engineering Science and Technology Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir
Johny Wahyuadi Soedarsono
Departemen Teknik Metalurgi Dan Material, Fakultas Teknik, Universitas Indonesia, Depok 16424
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation

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A Study of Potato Peel Extract (Solanum Tuberosum L) as a Green Corrosion Inhibitor on Low Carbon Steel in a 3.5% NaCl Environment Nugroho, Firman A.; Soedarsono, Johny Wahyuadi
invotek Vol 23 No 3 (2023): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v23i3.1159

Abstract

Wide application in the oil and gas industry made carbon steel suffer annual losses due to corrosion. The corrosion protection utilizes inhibitor have drawbacks expensive and harmful to the environment. Potato peel extract (solanum tuberosum L) and its main constituents, such as flavonoids, alkaloids, and tannins, have been investigated as a green corrosion inhibitor for low-carbon steel in a 3.5% NaCl solution. The inhibitor’s effectiveness and corrosion rate monitoring were measured using weight loss. Potentiodynamic polarization was used to investigate the type of corrosion inhibition and adsorption of plant extract on the surface. Fourier transform infrared spectroscopy (FTIR) was utilized to observe the presence of functional groups, natural compounds, and the type of bonding for adsorbed organic inhibitors on the surface. The results of the Tafel polarization analysis indicated that the potato peel extract acts as a mixed-type inhibitor. The inhibition efficiency increased with the concentration of the inhibitor extract. The optimal inhibition efficiency of 73.33% is was achieved with 6 ml of potato peel extract and 216 hours of immersion time. The inhibitive effect is due to the adsorption of inhibitor molecules on the steel surface, following the Langmuir adsorption isotherm.
The Risk Identification On 3" GL BO3-52520 Process Pipelines Using a Risk-Based Inspection Method Putra, Angga Pratama; Soedarsono, Johny Wahyuadi; Pangesty, Azizah Intan; Yusran asfar, Muhammad Ibkar; Aprizal, Aprizal; Ramadhan, Romal
Teknomekanik Vol. 5 No. 1 (2022): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (253.874 KB) | DOI: 10.24036/teknomekanik.v5i1.12772

Abstract

The oil and gas industry can contribute significantly to sustainable development by mitigating negative environmental impacts, such as equipment failure. Numerous pipeline failures have occurred due to the dramatic expansion of the oil and gas product distribution pipeline network, which is a significant factor in the offshore gas pipeline network's failure. In general, compared to other equipment types in the industry, planning inspections presents more challenges. Due to a lack of jurisdictional requirements regarding inspection intervals and piping methods. This research aims to ensure the reliability by conducting a risk assessment of the likelihood and consequences of equipment failure, mitigating the impact of that risk, and developing a more optimal inspection plan. This study is focused on API Class 5L Pipe 3" GL BO3-52520. The Routine Inspection Technique (RBI) was implemented in 2016 following the API 581 standard. This semi-quantitative approach is built based on operational data and validated inspection results. According to the risk assessment, the pipeline will have a Medium risk level, with metal losses occurring in each segment. Four years after the risk-based inspection assessment, the recommended inspection plan for gas pipelines is four years.
Study of mixing purple sweet potato and turmeric extract as green corrosion inhibitor for API-5L in NaCl 3.5% environment Wijaya, Arie; Soedarsono, Johny Wahyuadi; Laksana, Aldi Putra
Jurnal Pendidikan Teknologi Kejuruan Vol 4 No 4 (2021): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v4i4.21823

Abstract

Green inhibitors have become a major option for corrosion prevention since people are more aware of environmental damage. It is true that chemical inhibitors are more powerful at preventing corrosion, but its side effects are very harmful to the environment. Purple sweet potato (Ipomoea batatas L) in single use has been proven as an active inhibitor for certain applications. To improve this property, purple sweet potato is used as a mixed with other plants that contain antioxidant agents, such as ginger, melinjo, turmeric, jeera, etc. This paper discussed the effect of applying mixed extract of purple sweet potato with turmeric (Curcuma longa) as a green inhibitor to corrosion rate of API 5L steel in a 3.5% NaCl environment. Turmeric extract contains curcumin and kaempferol antioxidants while purple sweet potato extract contains antocyanin antioxidants. Corrosion rates were analyzed based on weight loss and polarization methods. The results showed the highest inhibitor efficiency was 82.54% achieved by 16 ml of turmeric mixed with 2 ml of purple sweet potato, and the optimum inhibitor efficiency was 74.2% achieved by 8 ml of turmeric mixed with 6 ml of purple sweet potato.
Studi Pendahuluan Pengendapan Cerium, Lanthanum, dan Neodymium dari Larutan Klorida Menggunakan Sodium Karbonat pada Pengolahan Monasit Bangka Trinopiawan, Kurnia; Avifa, Venny Nur; Susilo, Yarianto Sugeng Budi; Rakhma, Ersina; Supriyatna, Yayat Iman; Susanto, Iwan; Permana, Sulaksana; Soedarsono, Johny Wahyuadi
EKSPLORIUM Vol. 41 No. 1 (2020): MEI 2020
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/eksplorium.2020.41.1.5871

Abstract

Monazite mineral as associated mineral of tin mining in Bangka Belitung Islands contains light rare earth elements like Cerium (Ce), Lanthanum (La), and Neodymium (Nd). The objective of this study is to obtain the concentrates of rare earth carbonate through the precipitation process with sodium carbonate (Na2CO3) and determine the effect of concentration and volume of Na2CO3 on the precipitation recovery of Ce, La, and Nd. The preparation of the feed solution was carried out by following the monazite processing route using the alkali method includes the stages of decomposition, dissolution, and precipitation of radioactive elements. The highest precipitation recovery for Ce, La, and Nd are 10.84%, 7.81%, and 2.68% respectively in the use of Na2CO3 with a concentration of 30% wt and a volume of 55 mL.
Inspection Planning of Subsea Pipeline Using Risk-Based Inspection Adelia, Ni Luh Triska; Munir, Badrul; Soedarsono, Johny Wahyuadi
Journal of Materials Exploration and Findings Vol. 3, No. 2
Publisher : UI Scholars Hub

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Abstract

Pipelines are an important tool in oil and gas exploration. Pipeline is a transmission and liquid collection lines, including their accessories, which transport fluids from one plant to another. In transmission and collection process, there is a possibility of failure which can have minor to major impact on personnel injury, the environment and interrupt the business process. To maintain safety and to prevent accidents, the source and cause of failure needs to be calculated. Risk-based inspection (RBI) is a method that can be used to calculate the risk and determine the inspection planning both schedule and method, by combining the probability and consequences of failure. The analysis shows that the production separator is in the low-risk category. The next inspection schedule is determined based on RBI estimation which is 13 years after the last inspection. Inspection methods that can be applied to subsea pipeline based on DNVGL-RP-F116 standard are external inspection, in-line inspection with intelligent pig, and monitoring system. For external inspection can use Remotely Operated Vehicle (ROV). In-line inspection (ILI) with intelligent pig need to validate by with underwater UT B-Scan in the following year. The monitoring system only needs to be continued from what has been installed, corrosion coupon. It only needs to be adjusted for the length of installation time according to its purpose, to measure corrosion rate or detect pitting.
Effect of Impurities in Supercritical CO2 Environment on Steel Corrosion Behavior – an Overview Widianto, Shilla Rizqi; Soedarsono, Johny Wahyuadi; Riastuti, Rini; Munir, Badrul
Journal of Materials Exploration and Findings Vol. 3, No. 2
Publisher : UI Scholars Hub

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Abstract

Carbon capture, utilization, and storage (CCUS) technology is one of the available technologies to reduce presence of greenhouse gasses. Implementation of CCUS technology strongly relates with the CO2 transportation from the capturing facility to the storage in the geological reservoir. The most economical method for large-scale and long-distance CO2 transportation is using pipeline in supercritical phase. Moreover, presence of impurities such as water, O2, SO2, H2S, NO2 may cause detrimental effect towards carbon steel pipeline. This paper intends to provide an initial information for supercritical CO2 pipeline material selection, which review and summarize existing research on corrosion under supercritical CO2 environment. This paper present environment categorization in supercritical CO2 stream, impurities effect toward sample, as well as brief discussion about corrosion evaluation method.
Inspection Program Effectiveness Key Performance Indicator for Pressurized Static Equipment Integrity at Offshore Platform Haekal, Teuku Ahmad; Soedarsono, Johny Wahyuadi; Munir, Badrul; Sholihin, Muhammad Yudi Masduky
Journal of Materials Exploration and Findings Vol. 3, No. 3
Publisher : UI Scholars Hub

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Abstract

One of the key challenges in asset integrity management system at offshore platform is the lack of visibility regarding performance issues and program effectiveness. Without proper performance measurement systems, it becomes difficult to address positive or negative trends promptly and for management to stay informed about the status and the impact of the inspection program. Therefore, Key Performance Indicator (KPI) is needed to measure inspection program effectiveness to prevent undesirable equipment failures that could lead to Loss of Primary Containment (LOPC) or Process Safety Event (PSE). The developed KPI is the ratio of the number of non-leak inspection findings with a remaining life of less than 3 years to the total number of all anomalies with a remaining life of less than 3 years, including leak findings. By applying this KPI, inspection program effectiveness for an offshore field was monitored and improved firmly from 29% in 2018 to 82% in 2023, with some fluctuations in performance before achieving a strong recovery in later years.
Material selection for raw gas pipeline at SBR#2 gas field Rado Riady; Johny Wahyuadi Soedarsono; Rini Riastuti; Iman Adipurnama
Teknomekanik Vol. 5 No. 2 (2022): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v5i2.13372

Abstract

In engineering design, material selection is the process of choosing the best material for a specific process via a systematic material selection approach. This article described the material selection process for SBR#2 pipeline, which will be installed to flow raw gas from SBR#2 field to the nearest tie-in point. The material selection process starts with design requirement analysis to generate primary function and objectives, including its constraints, determine primary criteria to be evaluated, screen materials candidates based on criteria evaluation, and select the most suitable materials based on very specific requirements. The criteria were evaluated by performing value engineering with the performance criteria matrix tool. Materials selection, in this case, was determined by two main criteria: corrosion resistance and construction ability. Corrosion resistance was evaluated semi-quantitatively by applying NORSOK M-506 2005 spreadsheet, and construction ability were evaluated qualitatively based on field experience. Solid Corrosion Resistance Alloy (CRA)-Stainless Steel 316L pipe is the most suitable for this case.
Effect of Slope Chute Angle of HAP Magnetic Separator to the Acquisition of Nickel Matte from Undersized Product Resulted by Pierce Smith Converter Machine Nurhayati Indah Ciptasari; Egidius Arya Parande; Johny Wahyuadi Soedarsono; Agus Budi Prasetyo; Wahyu Mayangsari; Reza Miftahul Ulum; Ahmad Maksum
Recent in Engineering Science and Technology Vol. 1 No. 3 (2023): RiESTech Vol. 1 No. 3 Years 2023
Publisher : MBI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59511/riestech.v1i03.18

Abstract

The prototype of a magnetic separator was initiated and manufactured for handling undersized products of Pierce Smith Converter which has been channeled to a temporary shelter called a matte pond. It was dredged three to four times a year and it’s costly. This expenditure can be minimized by the manufacture of magnetic separators that are used to attract undersized nickel products. The manufacture of this prototype uses a scale of 1:20.000 for the volume of water and nickel matte, while for chute and magnetic drums with a scale of 1:4 from the conditions in the field. This research aims to determine whether magnetic separators are relevant for installation in the nickel processing industry, with the slope angle of the chute and magnetic power as the main parameters. Thus the matte pond can be minimized and undersized products can be directly processed and distributed to consumers. The material used in the manufacture of this prototype is aluminum sheet 1/16 which is rolled for magnetic drums, aluminum sheet 1/8 in for chute, copper wire 0.5 mm and mild steel, lathe for rods and axis, and bending for magnetic holders. The result of this magnetic separator prototype is 24.48% nickel can be attracted.
Kajian Kombinasi Ekstrak Daun Physalis angulata dan Daun Cassia angustifolia dengan Rasio 50:50 sebagai Green Inhibitor untuk API 5L dalam Larutan HCl 1M: Kajian Green Inhibitor tipe campuran untuk API 5L dalam Larutan HCl Triska Adelia Ni Luh; Khalisha Rizqi Olga Pramono; Johny Wahyuadi Soedarsono; M. Yudi M. Solihin
Recent in Engineering Science and Technology Vol. 2 No. 3 (2024): RiESTech Vol. 2 No. 3 Years 2024
Publisher : MBI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59511/riestech.v2i03.66

Abstract

The effect of combination of Physalis angulata leaf and Cassia angustifolia leaf extract as green inhibitor with a 50:50 ratio for API 5L steel was investigated. This experiment was carried in 1M HCl solution by using different concentrations as variables which is 10 ml, 30 ml, and 50 ml inhibitor extracts. Evaluation of this experiment was performed using potentiodynamic polarization and EIS. The antioxidant compound was investigated using FTIR and was found to be flavonoid. It was found that the capability of the inhibitor to inhibit the steel surface from the environment increases with increasing concentration, which 50 ml concentration is found to have the best efficiency of all concentrations. Combination of Physalis angulata leaf and Cassia angustifolia leaf extract is identified as mixed-type inhibitor with predominant cathodic effectiveness. The adsorption of this inhibitor on the steel surface was predominantly through physisorption and obeyed Langmuir adsorption isotherm.
Co-Authors Adelia, Ni Luh Triska Adipurnama, Iman Aditiyawarman, Taufik Agus Budi Prasetyo Agus Budi Prasetyo Agus Budi Prasetyo Ahmad Maksum Andon Insani Angga Pratama Putra, Angga Pratama Anjar Oktikawati Anne Zulfia Aprizal Aprizal Arif Arif Arif, Chandra Ariyani, Ira Ariyo Suharyanto Asfar, Mhd. Ibkar Yusran Astini, Vita Avifa, Venny Nur Azizah Intan Pangesty Badrul Munir, Badrul Bambang Suharno Darnengsih, Darnengsih Debby Rachel Eddy S Siradj Egidius Arya Parande Eni Febriana Eriyatno . Ersina Rakhma Fachry Abda El Rahman Florentinus Firdiyono Hadi Suwarno Haekal, Teuku Ahmad Haidir, Yuki Hasriyanti Hasriyanti Hendrastuti Hendrastuti Hernowo, Widi Iman Adipurnama Iwan Susanto Januar Irawan Kautsar Muwahhid Kautsar Muwahhid Khalisha Rizqi Olga Pramono Kurnia Trinopiawan Kurnia Trinopiawan Laksana, Aldi Putra Lalasari, Latifa Hanum Latifa Hanum Lalasari Latifa Hanum Lalasari M. Yudi M. Solihin Mahendra, Mirza Meika Syahbana Rusli Meirawati, Selvia Mhd. Ibkar Yusran Asfar Miftakhur Rohmah Miftakhur Rohmah, Miftakhur Munira Munira Mustafiah Mustafiah Nadia Chrisayu Natasha Natasha, Nadia Chrisayu Nengsih, Sulistia Nugraha, Cahyo Ady Nugroho, Firman A. Nurhayati Indah Ciptasari Padmodwiputra, Rendhatya Permana, Sulaksana Purnawarman, Faisal Dwiyana Putra, Budhi Putra, Ivan Fitrian Rado Riady Rafdi Abdul Majid Rafdi Abdul Majid Rakhma, Ersina Ramadhan, Romal Reza Miftahul Ulum Riady, Rado Rianti Dewi Sulamet-Ariobimo, Rianti Dewi Rini Riastuti Rudi Subagja Satria, Bambang Eka Sholihin, Muhammad Yudi Masduky Soelistiyono, Dony Suarthana, Eka Juni Sukirna, Iwan Supriyatna, Yayat Iman Tri Partuti Triska Adelia Ni Luh Venny Nur Avifa Vika Rizkia Wahyu Kartika Wahyu Kartika Wahyu Mayangsari Wahyu Mayangsari Widianto, Shilla Rizqi Wijaya, Arie Wisnu Ari Adi Yarianto Sugeng Budi Susilo Yarianto Sugeng Budi Susilo, Yarianto Sugeng Budi Yayat Iman Supriyatna Yusran asfar, Muhammad Ibkar