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Catalyx : Journal of Process Chemistry and Technology
Published by PT Penerbit Ilmiah Indonesia
ISSN : -     EISSN : 3063508X     DOI : https://doi.org/10.61978/catalyx
Core Subject : Science,
Chemistry
Catalyx : Journal of Process Chemistry and Technology with ISSN Number 3063-508X (Online) published by Indonesian Scientific Publication, is a leading scientific journal dedicated to advancing research, innovation, and development in the field of process chemistry and its technological applications. Since its inception, Catalyx has focused on facilitating scientific exchange among researchers, engineers, and practitioners in various sectors of process chemistry and its applications in industrial contexts. Through a rigorous peer-review process, the journal ensures the highest standards of academic integrity while promoting the dissemination of high-quality research.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 9 Documents
 1 
Extraction and application of eco-friendly ratio natural Dye from Jamun on different fibers by using ratio Combination of Mordents Liaquat, Lubna; Shahzadi, Dr.Phool; -un- Nisa, Alim; Ali, Zeeshan; Kalsoom, Razia; Rehman, Abdur
Catalyx : Journal of Process Chemistry and Technology Vol. 1 No. 1 (2024): July
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/catalyx.v1i1.189

Abstract

This paper reports to studies available on the characterization of the colorant extracted from the Jamun Bark dyeing on different fibers have been studies using different combination ratio 1:1, 2:1 of various mordant such as FeSO4oxalic acid, Sncl2, alum. It is found that Jamun Bark dye can be successfully used for the dyeing of Jute to obtain wide range of colors by using various combination of mordents. Development of new shade and analysis of colour parameter for textile dyes with Jamun Bark natural dyes with regard to colour fasteners properties.  The test samples exhibit good to excellent
In-situ and Co-pyrolysis of Empty Fruit Bunch Fiber for Hydrocarbon Production Bashar Hadi Abdullahi; Abdullahi Muhammad Sokoto; Aminu Bayawa Muhammad; Yahaya Alhassan; Chika Muhammad
Catalyx : Journal of Process Chemistry and Technology Vol. 1 No. 1 (2024): July
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/catalyx.v1i1.201

Abstract

Significant amount of empty oil palm bunches are produced annually in Nigeria that mostly going to waste or as animal feed. This study explores the feasibility of transforming these bunches into hydrocarbons via pyrolysis process. The MoO3 and NiO catalyst materials   facilitated the catalytic pyrolysis resulting in favourable properties of EFB fibre pyrolysis products suitable for various applications. Valuable compounds were identified through GC-MS analysis of pyrolysis oils. In-situ catalytic pyrolysis with MoO3 and NiO catalysts favored acidic compounds, and produced combustible (CH4) and non-combustible (CO2) gases. Co-pyrolysis of Low-Density Polyethylene and the fiber generated high olefins and paraffin production, along with a significant 40% methane gas yield in both processes.  The study highlights the conversion potential of agricultural waste into valuable hydrocarbons, emphasizing the crucial role of catalysts with selectivity for acidic compounds and achieving high olefin, paraffin, and up to 40% methane gas yields in both co-pyrolysis and catalytic pyrolysis process.
Comprehensive Analysis of Neocaryamacrophylla Seed Oil: Physicochemical, Phytochemical, and Fatty Acid Profiling for Potential Applications Rufai Fakai, Usman; Aliyu Saidu; Ibrahim Umar Muhammad; Adejumo MUTIU; Aminu Muhammad Bello; Abdulsalam Abdulrahman Ayodeji
Catalyx : Journal of Process Chemistry and Technology Vol. 1 No. 1 (2024): July
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/catalyx.v1i1.204

Abstract

This research investigates the physicochemical, phytochemical, and fatty acid composition of Neocaryamacrophylla seed oil, sourced from Illela, Sokoto State, Nigeria. Employing a soxhlet extraction method with n-hexane, the study determined a saponification value of 153.33 mgKOH/g, iodine value of 33.07 gI2/100g, and a peroxide value of 45.5 mgmeq/kg. Qualitative phytochemical analysis revealed the presence of tannins, saponins, flavonoids, alkaloids, steroids, and terpenoids, aligning with the antimicrobial attributes noted in Anacardiumoccidentale L. seeds oil. Fatty acid profiling identified oleic acid as the predominant monounsaturated fatty acid (42.46%), while linoleic and arachidonic acids constituted the main polyunsaturated fatty acids (35.08%). The study's findings suggest potential applications of Neocaryamacrophylla seed oil in soap production, owing to its high saponification value, and its stability, indicated by the MUFA/PUFA ratio. This research contributes valuable insights into the underexplored properties of Neocaryamacrophylla seed oil, holding implications for industries seeking alternative oil sources.
Determination of Antioxidant activities of locally produce rice in Northern and Western part of Nigeria, using Kebbi rice and Igbemo rice as case study Ugwo, Jeremiah; Adealawode , Marvellous Kehinde
Catalyx : Journal of Process Chemistry and Technology Vol. 1 No. 1 (2024): July
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/catalyx.v1i1.238

Abstract

This research provides the antioxidant activities of locally produced rice in the Northern and Western regions of Nigeria, with a focus on Kebbi rice and Igbemo rice. The study utilizes the Ferric Reducing Antioxidant Power (FRAP) and 2,2-Diphenyl-1-picrylhydrazyl (DPPH) assays to evaluate the antioxidant capacity of these rice varieties. In which the sample was extracted using solvent extraction method after which the antioxidant (AO) activity of the rice samples as ferric-reducing power, is determined using a modified FRAP (ferric reducing/antioxidant power) assay Sodium phosphate, buffer solution, pipettes, test tubes, centrifugal machine, TCA, KFC and reagent such as Fe(iii) solution were used to analyse the ferric reducing antioxidant power (FRAP) of the sample. Also, Methanolic solution, and spectrophotometer to measure absorbance at 516nm is used to determine the free radical scavenging ability of the extract against DPPH (1, 1- diphenyl-2-picryhydrazyl). Results reveal that Kebbi rice exhibits higher FRAP values compared to Igbemo rice, indicating superior antioxidant activity in the FRAP assay. Conversely, Igbemo rice demonstrates higher DPPH values than Kebbi rice, suggesting greater antioxidant potency in the DPPH assay. These findings underscore the variability in antioxidant properties among different rice varieties and highlight the importance of considering multiple assays for a comprehensive assessment of antioxidant activity. Understanding the antioxidant profiles of indigenous rice varieties like Kebbi and Igbemo rice is crucial for promoting their consumption and enhancing food security in Nigeria. Further research is warranted to elucidate the specific antioxidant compounds responsible for the observed differences and explore their potential health benefits.
Investigating Factors Responsible For Low Chemistry Enrollment: A Case Study University Of Ibadan-Okene Study Centre Ugwo, Jeremiah; Yusuf , Barnabas O.; Oyedoyin , Oyetunde Samuel
Catalyx : Journal of Process Chemistry and Technology Vol. 1 No. 1 (2024): July
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/catalyx.v1i1.243

Abstract

The role of chemistry in the promotion of national development cannot be overemphasized, consequently there is need to put in place all measures to sustain the acquisition of knowledge such as the number of student’s subscription. This study explores the factors influencing the low enrollment of students in chemistry education at tertiary institutions, focusing on the Federal College of Education Okene, in affiliation with the University of Ibadan. The study utilized an opinion survey research design and descriptive research method to systematically investigate the factors influencing chemistry enrollment. The validated questionnaire shows a reliability coefficient of 0.87, using descriptive research methods for data analysis. The population consisted of 120 students, with 40 from the chemistry department and 80 from the biology department selected randomly. A quantitative research approach was employed for data analysis, using the statistical tools of frequency, percentage, mean, and a significance test to make decisions based on the research questions posed. The study signifies challenges in student enrollment and suggests interventions to improve the attractiveness and effectiveness of chemistry education programs.
Fault Tree Analysis of Increased Pressure Drop in Hydrotreater Reactor Pratiwi, Zahru Wilda; Nugroho, Budi Sulistiyo; Safitri, Lian; Jalil, Abdul; Trihadi, Wanda; Ramli
Catalyx : Journal of Process Chemistry and Technology Vol. 1 No. 2 (2024): October
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/catalyx.v1i2.357

Abstract

The treating stage in a Catalytic Reforming Unit (CRU) is a critical process to ensure the longevity and efficiency of the reforming catalyst. However, anomalies like sudden and significant increases in reactor pressure drop, as observed in this case, can disrupt operations and reduce the unit's overall performance. It is crucial to identify the root cause of the observed pressure drop anomaly using the Fault Tree Analysis (FTA) method to systematically investigate the issue from multiple perspectives, enabling the identification of both minor and significant contributing factors. The FTA results indicate that external debris introduced during a recent catalyst changeover (COC) activity is the most likely cause. This allegation is supported by the analysis of equipment operation data and feed condition records, which did not reveal any significant changes. Given the absence of internal factors, the external influence of the COC activity emerges as the primary explanation for the pressure drop increase. To prevent similar occurrences in the future, it is crucial to implement rigorous cleaning and inspection procedures during turn-around (TA) activities to minimize the risk of debris entering the system. Monitoring reactor pressure drop and feed quality can also help detect and address potential issues early on. By taking proactive measures, the reliability and efficiency of the treating stage can be maintained, ultimately improving the overall performance of the CRU.
Assessment of Thermal Oxidizer (Tox) Performance Efficiency Nugroho, Budi Sulistiyo; Putri, Marsha Adinda
Catalyx : Journal of Process Chemistry and Technology Vol. 1 No. 2 (2024): October
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/catalyx.v1i2.359

Abstract

The use of a Thermal Oxidizer (TOX) aims to treat industrial waste gases by oxidizing harmful gases, such as sulphur dioxide (SO₂) and hydrogen sulphide (H₂S), at high temperatures. This study aims to evaluate the TOX operating conditions and analyze its efficiency in reducing harmful emissions released to the environment. Operating data is based on temperature, pressure, gas flow rate, and SO₂ concentration measurements from the Thermal Oxidizer (TOX). The measurement results show that the SO₂ emissions meet the government's standard setting below the maximum limit of 2,600 mg/Nm³. However, the actual TOX performance efficiency of 45.61% decreased compared to the initial design efficiency of 63.27%. This decrease was due to several factors, including reducing the hot oil flow rate and leakage in the chamber.
Optimization Of Furnace Efficiency In High Vacuum Units: Analyzing Heat Absorption And Loss Methods For Enhanced Fuel Utilization Nugroho, Budi Sulistiyo; Misqi, Al
Catalyx : Journal of Process Chemistry and Technology Vol. 1 No. 2 (2024): October
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/catalyx.v1i2.360

Abstract

One of the operating units of PT. Y, which functions to separate fractions based on differences in boiling routes. Serves to separate fractions based on differences in boiling routes and under vacuum pressure conditions in the High Vacuum Unit (HVU). This is because the feed in this operation contains long residues that consist of long hydrocarbon chain components or have a high boiling point. One of the leading equipment used in this unit is a furnace. The efficiency of furnaces in the High Vacuum Unit (HVU) is critical because furnace efficiency is paramount as it directly influences operational costs and energy consumption in the separation process. The study addresses the problem of optimizing furnace efficiency, which is crucial for reducing fuel usage, particularly fuel gas, thereby enhancing the overall economic viability of the operation. The research employs a methodology that analyzes heat absorbed and heat loss within the furnace system. By measuring these parameters, the study identifies areas for improvement in thermal efficiency. Optimization involves adjusting fuel inputs and operational settings to minimize waste while maintaining effective heating capabilities. The optimization results show a significant decrease in fuel gas usage by 2,14%, compared to the average consumption level recorded in July 2024. In addition, fuel oil usage was optimized to 3 tons per day (T/D). These adjustments improved the furnace's efficiency and contributed to a more sustainable operation. The findings of this optimization study have broader implications for energy efficiency and cost savings in operations. By improving furnace performance, PT. Y can achieve lower operational costs and reduce its environmental footprint through decreased fuel consumption. This aligns with the industry trend towards sustainability and efficient resource management, benefiting the company and society.
Synthesis and Characterization of Oxide Catalysts Supported on Activated Carbon Hadi, B. A; Muhammad, A. U; Umar, M. T
Catalyx : Journal of Process Chemistry and Technology Vol. 2 No. 1 (2025): January 2025
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/catalyx.v2i1.984

Abstract

The rising costs of conventional hydrotreating catalysts necessitate sustainable alternatives. Here, activated carbon derived from Empty Fruit Bunch (EFB) fibre, a byproduct of palm oil production, was developed as a renewable catalyst support. Using nickel nitrate, cobalt nitrate, and ammonium molybdate as both activating agents and precursors. NiO/C, CoO/C, and MoO₃/C catalysts were synthesized via in-situ activation. SEM/EDX analysis confirmed uniform metal oxide dispersion and revealed porous carbon structures. The results establish EFB-derived activated carbon as a low-cost catalysts support material with significant potential for catalytic upgrading of pyrolysis oil. Its high surface area and tunable properties further enhance its suitability for hydrotreating and other sustainable catalytic applications. This work introduces an in-situ route where metal precursors act as both activators and catalysts precursors, producing efficient EFB-derived catalyst supports for pyrolysis oil upgrading.

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