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33rd International Conference on Metallurgy and Materials, METAL 2024

作者： Kacprzynska-Golacka, Joanna Brudnias, Rafal Packo, Daniel Krasinski, Andrzej Lukasiewicz Research Network Institute for Sustainable Technologies Radom Poland Faculty of Chemical and Process Engineering Warsaw University of Technology Warsaw Poland

ISBN: (纸本)9788088365211

The DC-MS magnetron sputtering method is a well-known surface engineering technology and is a very effective technological tool in the processes of producing multi-component coatings. One of the limits of DC magnetron sputtering is the production of metal oxide coatings. Mainly due to the insulating properties of targets made of metal oxides. Currently, the most widely used type of magnetron sputtering, which enables deposition of metal oxides coating, is High Power Impulse Magnetron Sputtering (HPIMS) and Radio Frequence Magnetron Sputtering (RF-MS). This method is characterized by high power density, high ionization and high plasma density, which enables the production of high-quality multi-component coatings. As part of the presented work, the characteristics of the material and functional properties of MeO coatings produced with the use high-power pulsed magnetron sputtering (HPIMS) and radio frequence magnetron sputtering (RFMS) and were carried out. The mechanical and material properties of the produced coatings were compared. The conducted analysis showed a significant influence of the applied technology on the deposition rate and mechanical properties of the obtained materials. © 2024 Tanger Ltd., Ostrava.

关键词： HIPIMS magnetron sputtering metal oxides coatings PVD RF-MS

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Performance evaluation of nanosilica derived from agro-waste as lost circulation agent in water-based mud

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Petroleum Research 2023年第2期8卷 256-269页

作者： Augustine Agi Jeffrey O.Oseh Afeez Gbadamosi Cheo Kiew Fung Radzuan Junin Mohd Zaidi Jaafar Faculty of Chemical and Process Engineering Technology College of Engineering TechnologyUniversiti Malaysia Pahang26300GambangPahangMalaysia Institute for Oil and Gas(IFOG) Universiti Teknologi Malaysia81310Johor BahruMalaysia Federal University of Technology P.M.B.1526OwerriImo StateNigeria Department of Petroleum Engineering College of Petroleum and GeosciencesKing Fahd University of Petroleum and Minerals31261DhahranSaudi Arabia Department of Petroleum Engineering School of Chemical and Energy EngineeringFaculty of EngineeringUniversiti Teknologi Malaysia81310 Johor BahruMalaysia

Seepage or loss of the mix-water from the drilling muds into the porous and permeable formations is a common problem during drilling *** drilling mud design requires a good knowledge of sealing integrity and all the factors influencing the mud to bridge through fractures or pore throat of exposed *** circulation materials(LCMs)are commonly introduced into the drilling mud to prevent or minimize filtrate *** study investigates silica nanoparticle(SNP)derived from rice husk(RH)termed RH-SNP using the wet-milling method as an LCM inwater-based mud(WBM).The impact of the RH-SNP in the enhancement of rheology and filtrate loss control properties of WBM was ***,the sealing integrity of the RH-SNP in a 1 mm and 2 mm simulated fracture for 7 min was determined using a stainless-steel slotted filter *** performance of the developed RH-SNP was compared with the widely applied *** synthesized RH-SNP at amount of 2.0 wt% significantly enhanced the yield point and plastic viscosity of the WBM by 75% and 386%,respectively,and minimized the fluid loss of the WBM by 47% at 80°*** enhancement is due to the particles ability to spread and interact efficiently with the *** the use of 1 mm and 2 mm simulated fracture for 7 min,the mud loss volume of the base mud reduced by 50%,66.7%,86%,and 90%(for 1 mm)and 40%,65.7%,77.1%,and 80%(for 2 mm)with the inclusion of 0.5 wt%,1.0 wt%,1.5 wt%,and 2.0 wt% of RH-SNP,***,the results showed that RH-SNP enhanced the seal integrity of the drilling mud and was more resistant to deformation compared to the *** findings of this study can help for better understanding of the application of RH-SNP as a loss circulation agent owing to its superior ability to seal fractured formation compared with the often used nutshell.

关键词： Rice husk silica nanoparticles Loss circulation material Fractured formation Water based-mud Rheology

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Demulsification of a water-in-crude oil emulsion with a corn oil based-demulsifier using the response surface methodology: Modelling and optimization

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Recent Innovations in chemical engineering 2021年第2期14卷 160-175页

作者： Saad, Abed Abdurahman, Nour Yunus, Rosli Mohd Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Gambang Pahang26300 Malaysia

In this study, the Sany-glass test was used to evaluate the performance of a new surfactant prepared from corn oil as a demulsifier for crude oil emulsions. Central composite design (CCD), based on the response surface methodology (RSM), was used to investigate the effect of four variables, including demulsifier dosage, water content, tem-perature, and pH, on the efficiency of water removal from the emulsion. Besides, analysis of variance was applied to examine the precision of the CCD mathematical model. The results indicate that demulsifier dose and emulsion pH are two significant parameters de-termining demulsification. The maximum separation efficiency of 96% was attained at an alkaline pH and with 3500 ppm demulsifier. According to the RSM analysis, the optimal values for the input variables were 40% water content, 3500 ppm demulsifier, 60 °C, and pH 8. © 2021 Bentham Science Publishers.

关键词： Demulsification

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Utilization of palm oil fuel ash (POFA) as catalyst support for methane decomposition

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Materials Today: Proceedings 2022年 57卷 1136-1141页

作者： Hanifa, Nurul Husna Elyana Ismail, Mazni Ideris, Asmida Department of Chemical Engineering College of Engineering Universiti Malaysia Pahang Lebuhraya Tun Razak 26300 Gambang Pahang Kuantan Malaysia Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Lebuhraya Tun Razak 26300 Gambang Pahang Kuantan Malaysia

An agricultural waste, palm oil fuel ash (POFA) has been evaluated as a Ni catalyst support for the methane decomposition process. The effects of solvent and pre-treatment technique during the POFA pre-treatment have been investigated towards the catalytic performance of Ni supported on POFA (Ni-POFA) catalyst prepared at 10 wt% Ni loading. Methane decomposition of Ni-POFA catalyst was carried out at 550 °C for 6 hrs. The POFA and Ni-POFA were characterized using X-ray fluorescence (XRF), X-ray diffractometer (XRD), N2 adsorption–desorption isotherms and field emission scanning electron spectroscopy (FESEM). The results showed that citric acid solution was the best solvent for POFA pre-treatment. The SiO2 content in the POFA pre-treatment improved from 42.4 to 72 wt%. Good CH4 conversion achieved by Ni-POFA catalyst in the methane decomposition was attributed to high SiO2 in the POFA treated with citric acid. Compared to conventional stirring, pre-treatment of POFA with ultra-sonication technique has produced POFA support with smaller particles size, and Ni-POFA catalyst with better BET surface area and better Ni dispersion. These catalyst properties have contributed to an exceptional catalytic performance of 71% of initial CH4 conversion and 4.2% of initial H2 yield of Ni-POFA catalyst in the methane decomposition. The work suggests that POFA has the potential to be utilized as catalyst support, and pre-treatment is crucial for a reasonable catalytic performance in methane decomposition. © 2021

关键词： Palm oil

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Agri-food waste biosorbents for volatile organic compounds removal from air and industrial gases – A review

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Science of the Total Environment 2024年 945卷 173910页

作者： Makoś-Chelstowska, Patrycja Slupek, Edyta Gębicki, Jacek Department of Process Engineering and Chemical Technology Faculty of Chemistry Gdansk University of Technology Gdańsk80-233 Poland

Approximately 1.3 billion metric tons of agricultural and food waste is produced annually, highlighting the need for appropriate processing and management strategies. This paper provides an exhaustive overview of the utilization of agri-food waste as a biosorbents for the elimination of volatile organic compounds (VOCs) from gaseous streams. The review paper underscores the critical role of waste management in the context of a circular economy, wherein waste is not viewed as a final product, but rather as a valuable resource for innovative processes. This perspective is consistent with the principles of resource efficiency and sustainability. Various types of waste have been described as effective biosorbents, and methods for biosorbents preparation have been discussed, including thermal treatment, surface activation, and doping with nitrogen, phosphorus, and sulfur atoms. This review further investigates the applications of these biosorbents in adsorbing VOCs from gaseous streams and elucidates the primary mechanisms governing the adsorption process. Additionally, this study sheds light on methods of biosorbents regeneration, which is a key aspect of practical applications. The paper concludes with a critical commentary and discussion of future perspectives in this field, emphasizing the need for more research and innovation in waste management to fully realize the potential of a circular economy. This review serves as a valuable resource for researchers and practitioners interested in the potential use of agri-food waste biosorbents for VOCs removal, marking a significant first step toward considering these aspects together. © 2024 The Authors

关键词： Volatile organic compounds

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Magnetic Porous Material Derived from Ni-MOF for the Removal of Tetracycline from Aqueous Solution

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ACS Applied Nano Materials 2024年第7期7卷 7614-7621页

作者： Xue, Yuhui Wang, Jingjing Wang, Meng Li, Jiang Wang, Kefu Hassan, Afaq Guo, Changyan Wang, Jide Xinjiang Key Laboratory of Oil and Gas Fine Chemicals College of Chemistry and Chemical Engineering Xinjiang University Urumqi 830046 China Technical Center of Urumqi Customs Urumqi 830063 China Xinjiang Uygur Autonomous Region Center for Disease Control and Prevention Urumqi 830002 China Department of Process Engineering and Chemical Technology Chemical Faculty Gdansk University of Technology Gdansk 80-233 Poland

The efficient removal of antibiotic residues from aqueous solution is very important for water security. Studies have found that adsorption is widely used for the removal of antibiotics due to its cost-effectiveness, low energy consumption, simplicity of operation, and environmental friendliness. In this study, a novel magnetic porous carbon adsorbent (Ni-MPC-400) with a high adsorption capacity and saturation magnetization was synthesized via direct carbonization of Ni-MOF at 400 °C pyrolysis temperature and used to efficiently remove tetracycline from an aqueous solution. Adsorption experiments showed that Ni-MPC-400 exhibited excellent tetracycline adsorption capacity (441.51 mg·g^-1) from the aqueous solution. Possible adsorption mechanisms were proposed through characterization and analysis. The adsorption mechanisms mainly involved π-π interactions, hydrogen bonding, metal-organic complexation, and pore filling effects. In addition, Ni-MPC-400 showed rapid and sufficient adsorption at a low concentration of tetracycline (5 mg·L^-1) and good adsorption performance over a wide pH range. In addition, the material has been tested to have good immunity to interference and regenerative capacity, demonstrating a potential application in the removal of tetracycline contaminants from aqueous solutions. © 2024 American chemical Society.

关键词： aqueous solutions magnetic porous material Ni-MOF Ni-MPC-400 tetracycline

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Factorial analysis on nanocomposite membranes for CO2, CH4 and N2

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Materials Today: Proceedings 2022年 57卷 1306-1314页

作者： Aqilah Ghazali, Alia Abd Rahman, Sunarti Abu Samah, Rozaimi Department of Chemical Engineering Universiti Malaysia Pahang Lebuhraya Tun Razak 26300 Gambang Kuantan Pahang Malaysia Faculty of Chemical & Process Engineering Technology Universiti Malaysia Pahang Lebuhraya Tun Razak 26300 Gambang Kuantan Pahang Malaysia

This study aims to develop, characterize, and optimize the nanocomposite membranes comprised of the coated polyether block amide (Pebax) filled with two different types of nanoadsorbent derived from agricultural wastes on the commercial polyvinylidene fluoride (PVDF) support membrane. To systematically investigate the influence of several membrane preparation conditions on gas separation performance, fractional factorial design (FFD) was applied. The considered conditions include Pebax concentration (3 and 6 wt%), type of nanoadsorbents which are oil palm frond (OPF) and pineapple peel (PP), nanoadsorbents concentration (0.5 and 5 wt%) and sonication time (15 and 60 min). Analysis of variance (ANOVA) technique was used to identify the main and interaction effects of the considered conditions on the gas permeability (CO2, CH4 and N2) and selectivity (CO2/CH4 and CO2/N2). The findings from the screening study suggested that the most influential factors that affect the permeability and selectivity are Pebax concentration and nanoadsorbent type. The incorporation of 5 wt% nano-pineapple peel activated carbon (PPAC) into 6 wt% of Pebax matrix had resulted in a high CO2 permeability, CO2/CH4 selectivity and CO2/N2 selectivity of 1682.76 Barrer, 33.17, and 37.03, respectively, which manage to perform beyond the Robeson plot. © 2021

关键词： Nanocomposites

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The Crashworthiness Performance of the Energy-Absorbing Composite Structure—A Review

The Crashworthiness Performance of the Energy-Absorbing Comp...

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Innovative Manufacturing, Mechatronics and Materials Forum, iM3F 2021

作者： Khilji, Irshad Ahamad Mohd Saffe, Siti Nadiah Reddy Chilakamarry, Chaitanya Rusdan, Siti Aishah Faculty of Manufacturing and Mechatronics Engineering Technology Universiti Malaysia Pahang Pekan Malaysia Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Kuantan Gambang Malaysia

ISBN: (纸本)9789811928895

The improved energy absorption capacity of composite materials will upgrade people’s safety in accidents. Several parameters affect energy absorption such as fibre type, matrix type, fibre architecture, specimen geometry, processing conditions, fibre volume fraction, and test speed. These parameters influence the composite material-specific energy absorption. The distinct characteristic properties of composites play an essential role in a variety of industries. Automotive applications have attracted worldwide attention due to their rapid use and are expected to increase. This review focuses on understanding the effect of a particular parameter on the energy absorption capability of composites, an analysis of the energy absorption properties of polymer composites. The data from the various researchers are collected and categorised in the field of energy absorption of composites. Many testing methods and refraction types for composites are described. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Energy absorption

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Effect of process parameters on immobilization of cyclodextrin glucanotranferase (CGTase) from Bacillus licheniformis on pineapple waste

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Materials Today: Proceedings 2022年 57卷 1036-1039页

作者： Che Man, Rohaida Ab Rahim, Rosnida Mohd Arshad, Zatul Iffah Sulaiman, Siti Zubaidah Department of Chemical Engineering College of Engineering Universiti Malaysia Pahang Lebuhraya Tun Razak Pahang Gambang26300 Malaysia Faculty of Chemical and Process Engineering Technology College of Engineering Universiti Malaysia Pahang Lebuhraya Tun Razak Pahang Gambang26300 Malaysia

Cyclodextrin glucanotransferase (CGTase) is capable of degrading starch to produce cyclodextrin (CD). CD production has increased over the years due to its applications in numerous industries like environmental engineering, food industries, and pharmaceutical industries. The enzyme immobilization approach was commonly implemented to overcome low CD production during the reaction process due to the instability and denaturation of CGTase. The objective of this study is to immobilize CGTase produced by Bacillus licheniformis on pineapple peel. The influence of process parameters on the CGTase immobilization process such as pH (5, 6, 7, 8, and 9), contact time (4, 8, 12, 16, 20, 24, and 28 hr), and temperature (20, 25, 30, 35 and 40 °C) was studied. pH 7 was the best pH for CGTase immobilization, with a 75.97% of immobilization yield. In addition, the optimal temperature that produced the high immobilization yield (76.80%) was at 25 ℃. Meanwhile, the optimum contact time was detected at 24 hr, with 75.53% of immobilized yield. In conclusion, the immobilization process could increase the enzyme stability and increase CD production, valuable for application in industries. © 2021

关键词： Cyclodextrins

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A novel metal hydride reactor design: The effect of using copper, AlN and AlSi10Mg composite fins on the dehydrogenation process of LaNi5-Metal alloy

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International Journal of Hydrogen Energy 2025年 141卷 118-132页

作者： Chibani, Atef Boucetta, Chahrazed Haddad, Mohammed Amin Nassim Boukhari, Ali Fourar, Issam Merouani, Slimane Badji, Riad Adjel, Samir Belkhiria, Sihem Boukraa, Moustafa Bougriou, Cherif Research Center in Industrial Technologies CRTI P.O.Box 64 Cheraga Algiers16014 Algeria Faculty of Exact Sciences and Sciences of Nature and Life Department of Material Sciences University of Larbi Ben M'hidi Oum El Bouaghi04000 Algeria LMSEA Mechanical Engineering Department National Polytechnic School of Constantine Constantine25000 Algeria UDERZA Unit Faculty of Technology University of El Oued El Oued39000 Algeria Laboratory of Environmental Process Engineering Department of Chemical Engineering Faculty of Process Engineering University Salah Boubnider Constantine 3 P.O. Box 72 Constantine25000 Algeria University of Monastir Faculty of Sciences Laboratory of Thermal and Energetic Systems Studies LR99ES31 Monastir5019 Tunisia Mechanical Engineering Department Faculty of Technology University of Mostefa Ben Boulaid Batna 2 Batna05000 Algeria

The optimal design of solid-state hydrogen storage devices is crucial for their effectiveness. This study investigates the thermal management of LaNi5-based metal hydride reactors for solid-state hydrogen storage by incorporating various fin materials: copper, aluminum nitride (AlN), and Aluminum Silicon Magnesium (AlSi10Mg). Utilizing ANSYS FLUENT 15.0 for simulations within a 2D numerical model, User-Defined Functions (UDFs) were employed to access the dehydrogenation process over a half-hour period. The reactor is subjected to an initial temperature of 363 K and heating oil is introduced at a speed of 1 m/s pressures ranging from 1 to 2 bar. The impact of different fin materials on enhancing the reactor's desorption properties was evaluated through key metrics such as hydrogen concentration, forced convection heat transfer coefficient, and average reactor temperature. Results demonstrate a remarkable improvement in hydrogen desorption rates, where copper fins achieve up to 67.6 % reduction in time to reach equilibrium at 1 bar compared to the reactor without fins. Similarly, AlN and AlSi10Mg fins exhibit a 64 % and 62 % reduction, respectively, highlighting their contributions to improved reactor performance. This research contributes to the advancement of hydrogen storage technologies by offering insights into the selection of fin materials and design for efficient. © 2025 Hydrogen Energy Publications LLC

关键词： Forced convection

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