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2024 SPE Nigeria Annual International Conference and Exhibition, NAIC 2024

作者： Balakirisnan, A. Jaafar, M.Z. Sidek, M.A. Yakasai, F. Nwaichi, P.I. Ridzuan, N. Mahat, S.Q.A. Abbas, A.H. Ngouangna, E. Gbadamosi, A. Oseh, J.O. Gbonhinbor, J.R. Agi, A. Department of Petroleum Engineering School of Chemical and Energy Engineering Faculty of Engineering Universiti Teknologi Malaysia Johor Bahru Malaysia Institute for Oil and Gas Universiti Teknologi Malaysia Johor Bahru Malaysia Department of Chemical and Petroleum Engineering Faculty of Engineering Bayero University Kano PMB Nigeria Faculty of Chemical and Process Engineering Technology College of Engineering Technology Universiti Malaysia Pahang Al-Sultan Abdullah Pahang Gambang Malaysia School of Mining and Geosciences Nazarbayev University Astana Kazakhstan College of Petroleum and Geosciences King Fahd University of Petroleum and Minerals Dhahran Saudi Arabia Department of Petroleum Engineering Niger Delta University Wilberforce Island Amassoma Yenagoa Nigeria Centre for Research in Advanced Fluid and Processes Fluid Centre Universiti Malaysia Pahang Al-Sultan Abdullah Pahang Gambang Malaysia

ISBN: (纸本)9781959025474

Recent studies on oil-foam interaction using different types of oil were limited to the aspect of alkane chain length, density and viscosity of crude oil. However, oil polarity toward foam stability to predict the significant variable of the foam half-life and its evaluation in macroscopic oil displacement is still elusive in literature. In this study, the effect of oil polarity on foam properties at bulk and macroscopic scales was investigated. The effect of electrolytes on surfactant foam stability was studied. Subsequently, the foam stability in the presence of polar and non-polar oil was determined. Thereafter, the macroscopic oil displacement efficiency of surfactant foam was evaluated. Finally, a multivariate linear regression analysis was used to predict the significant variable of the foam half-life. The results indicate that cocamidopropyl betaine (CAPB) foam had better stability under the influence of oil polarity, with a half-life decrease of 8% in hexane oil compared to 86% by sodium dodecyl sulfate (SDS). Moreover, SDS foam flooding recovered 10% additional oil compared to 5% CAPB foam. However, oil recovery in the presence of pyridine decreased oil recovery of SDS and CAPB foam flooding to 6% and 3%, respectively. Likewise, mobility reduction factor (MRF) of SDS foam decreased by 74% compared to 39% by CAPB foam. However, both MRF of SDS and CAPB foam drop drastically by 81% and 90%, respectively in the presence of pyridine compared to hexadecane. Finally, the multivariate regression analysis indicates that surfactant is the most significant variable with a P value below 0.0001. The R2 proportion of variation in the response attributed to this model was 0.81, with a root mean square estimation of 5.2386. Copyright © 2024, Society of Petroleum Engineers.

关键词： Crude oil

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Photocatalytic degradation of methylene blue using ZnO supported on wood waste-derived activated carbon (ZnO/AC)

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Materials Today: Proceedings 2022年 57卷 1315-1321页

作者： Loke, J.Y. Mohd Zaki, R.S. Setiabudi, H.D. Department of Chemical Engineering College of Engineering Universiti Malaysia Pahang Lebuhraya Tun Razak Pahang Gambang26300 Malaysia Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Lebuhraya Tun Razak Pahang Gambang26300 Malaysia Centre of Excellence for Advanced Research in Fluid Flow Universiti Malaysia Pahang Lebuhraya Tun Razak Pahang Gambang26300 Malaysia

This study reports the preparation of ZnO supported on wood waste-derived activated carbon (ZnO/AC) and its activity towards photocatalytic degradation of methylene blue (MB). The removal of MB is imperative owing to its toxic impacts on the receiving water bodies. Thus, finding treatment techniques with criteria of efficient, cost-effective, and environmentally benign is highly needed. ZnO/AC has been synthesized by the incipient wetness impregnation method and was characterized using XRD, FTIR, PL, and UV–Vis-NIR. Characterization analysis revealed the successful impregnation of ZnO onto the AC. The best photocatalytic degradation of MB using ZnO/AC was achieved at 180 min, adsorbent dosage of 3 g/L, and pH 8. Complete MB degradation was attained at lower initial MB concentrations (10 – 50 mg/L) and slightly decreased at higher initial MB concentration (100 mg/L). The experimental data fitted well with the pseudo-first-order Langmuir-Hinshelwood kinetic model with a correlation coefficient (R2) greater than 0.995. The results revealed that the synthesized ZnO/AC exhibited remarkable photocatalytic activity towards the degradation of MB. © 2022

关键词： Zinc oxide

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Mechanical property study of plywood bonded with dimethylol dihydroxy ethylene urea crosslinked rice starch- natural rubber latex-based adhesive

Mechanical property study of plywood bonded with dimethylol ...

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作者： Soubam, Triveni Gupta, Arun Sharma, Swati Shima Jamari, Saidatul Faculty of Chemical & Process Engineering Technology Universiti Malaysia Pahang Pahang Gambang26300 Malaysia University Institute of Biotechnology Chandigarh University Punjab Mohali140413 India

There has been an increase in the demand for adhesives due to the increasing applications of plywood panels in the home furnishings and decorative items industries around the world. Most of the wood-based panels industry depends on synthetic adhesives due to its low cost and high performance. However, because synthetic adhesives emit the carcinogenic gas formaldehyde and increase the risk of human health, there is a growing interest in developing non-toxic and eco-friendly wood adhesives made from renewable materials. The present research aims to develop a bio-adhesive for plywood bonding based on two biopolymers: natural rubber latex (NRL) and dimethylol dihydroxy ethylene urea (DMDHEU) crosslinked rice starch. A bio-adhesive was ultimately formulated with varying weight ratio of NRL and DMDHEU crosslinked rice starch at 1:3, 1:1 and 3:1 respectively. Mechanical characteristics of plywood samples fabricated with the formulated bio-adhesive were measured using IS 17,304 and ISO 12466–1-2007 via hot press at 120 °C. The modulus of rupture (MOR) of plywood glued with Dm-B was 63 MPa, the modulus of elasticity (MOE) was 6480 MPa, and the internal bonding (IB) was 1.48 MPa, each of which met the ISO 12466–2-2007 and IS 303 standards. According to the findings, Dm-B had a profound impact on the performance of adhesion properties and contributed to the elimination of the use of hazardous synthetic adhesives. © 2022

关键词： Ethylene

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The Influence of Copper Post-Flotation Waste (Pfw) on the Early Heat of Hydration and Mechanical Properties of the Cement Mortars

SSRN

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SSRN 2023年

作者： Kalisz, Szymon Lieder, Marek Haustein, Elżbieta Faculty of Chemistry Department of Process Engineering and Chemical Technology Gdansk University of Technology Poland Faculty of Civil Engineering Department of Mechanics of Materials and Structures Gdansk University of Technology Poland

The aim of the research was an influence evaluation of the copper post-floatation wastes (PFW) on the selected parameters of cement mortar. The scope of the study concerned the determination of the composition and set properties of the waste itself. The research included determining the pozzolanic activity and mechanical strength of cement mortars and evaluating the trend of changes in the early heat hydration process. Mortars were designed based on Ordinary Portland Cement with different study material content from 2.5 to 10% of the cement mass. PFW particles have irregular grain morphology, and the content of oxides such as SiO2 and CaO mainly dominates their chemical composition. The waste amount of heavy metals, primarily zinc and copper. The concentration of these compounds impacts the hydration process of cement mortars (lower the heat of hydration, the incorporation of metal ions into the structure of the CSH, and the impact on the mechanical strength). The calorimetric studies showed that the heat generation rate decreased with the increasing cement replacement by PFW, reducing the total heat. After seven days of curing, the average compressive strength for the mortars containing 2.5% and 10% PFW was set at 39.3 and 42.5 MPa, respectively. The experiment confirmed the safety possibility of using the copper PFW as add (or substitute) in cement mortars and also found a potential direction for managing that waste. © 2023, The Authors. All rights reserved.

关键词： Compressive strength

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Study on bee bread extracts as active ingredients in SGC-Active film for food packaging application

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Materials Today: Proceedings 2023年

作者： Dewi Subramaniam, Sarmilaah Hajar Abd Rahim, Siti Abdul Halim, Luqman Basrawi, Firdaus Aini Mohd Azman, Nurul Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Pahang Gambang26300 Malaysia Meliponini Engineering Laboratory Faculty of Mechanical and Automotive Engineering Technology Universiti Malaysia Pahang Pahang Pekan26600 Malaysia

Globally, the adverse effect of synthetic preservatives on human health remains a challenge. Thus, the development of biodegradable active films is a potential step in realizing environmentally-friendly solutions. The objective of this study is to produce biodegradable active films made of semi-refined carrageenan and stingless bee bread extracts [5, 10, and 20 (v/v %)] as natural antioxidants. Moreover, the film stability was improved by adding glycerol and cellulose nanofibers as a plasticizer and reinforcing agents, respectively. The physical and mechanical properties of biodegradable active films were examined with the antioxidant release test. The antioxidant release tests were carried out in 95% of food simulants over 28 storage days with four-day intervals. The Fourier-Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) results confirm the good compatibility of the bee bread (BB) extracts with the polymer matrix of semi-refined carrageenan, glycerol, and cellulose nanofiber (SGC). In this study, the formulation of active packaging films incorporated with stingless bee bread extracts demonstrated competitive qualities, which implies that it could be a viable alternative to biodegradable films. © 2023

关键词： Antioxidants

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INFLUENCE OF process PARAMETERS OF THE ION SOURCE ON THE HYDROPHILIC PROPERTIES OF POLYMERIC MATERIALS 33

INFLUENCE OF PROCESS PARAMETERS OF THE ION SOURCE ON THE HYD...

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33rd International Conference on Metallurgy and Materials, METAL 2024

作者： Piasek, Artur Kacprzynska-Golacka, Joanna Sowa, Sylwia Osuch-Slomka, Edyta Lozynska, Monika Snopczynska, Anita Krasinski, Andrzej Smolik, Jerzy 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

Currently, polymers are a group of future-proof materials, which, in contrast metals, are characterized by low weight and also are easier to obtain and relatively cheap. However, due to their low surface energy, their use is often limited. Due to plasma technology, it is possible to modify the surface properties of polymers in a cost-effective and efficient way. During the last years, low temperature plasma surface functionalization of polymer materials has increasingly earned a high position in a wide range of application fields. This paper present the influence of ion etching technology on modyfication of the surface of polymers. An assessment of the impact of the operating parameters of the ion gun on the hydrophilic properties of polymers was presented. An analysis of the surface topography, chemical composition and wettability of polymer materials after the activation process was carried out. © 2024 Tanger Ltd., Ostrava.

关键词： Plasma diagnostics

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Formulation of Malaysian clay into inert ceramic balls: Effect of sintering temperature

Formulation of Malaysian clay into inert ceramic balls: Effe...

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作者： Zainudin, Fikri Hakim Zulkifli, Muhammad Shafiq Saud, Anisah Sajidah Salim, Nurjannah Ani, Hanafi Hisyam, Anwaruddin Edy Sutjipto, Agus Geter Ab. Rahim, Mohd Hasbi Faculty of Industrial Sciences and Technology Universiti Malaysia Pahang Lebuhraya Tun Razak Pahang Kuantan26300 Malaysia Department of Manufacturing and Materials Kulliyyah of Engineering International Islamic University Malaysia Jalan Gombak Kuala Lumpur53100 Malaysia Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Lebuhraya Tun Razak Pahang Kuantan26300 Malaysia

Ceramic ball support bed materials are used in multiple industries with the aim of providing support for the catalytic materials and assisting the reaction. The majority of ceramic ball products used in Malaysia are either imported as finished products or domestically produced using an imported formulated powder. Besides, the characteristics of sintered ceramic balls depend on the specific powder metallurgy route, including the material composition, range of particle size, and sintering process. Thus, this study focuses on producing inert ceramic balls from local Malaysian raw materials and optimising the sintering temperature with the aim of fulfilling the Universal Oil Products (UOP) standard requirements. The research utilises local clay raw material originating from Trong, Perak, Malaysia. The formulation of each ball was formulated based on a mixture of kaolinite clay, potash feldspar, and silica sand. The sintering process was then varied between 1250 and 1350 °C to tune the character of the finished ceramic ball product. The characterization of the ceramic ball was carried out based on the UOP standard and complemented with X-ray Diffractometer (XRD), Scanning Electron Microscope – Energy Dispersive X-ray (SEM-EDX), and X-ray Fluorescence (XRF) analysis. All tested ceramic balls meet the requirements of the UOP standard. In fact, locally formulated samples had approximately twice the crushing strength of required standards. Different sintering temperatures affect the quartz phase, kaolinite dehydroxylation, mullite formation, and feldspar fusion, thus controlling the final physical–mechanical properties of ceramic balls. Overall, the sintering temperature of 1300 °C provides the most promising output in terms of the quality of ceramic balls and the cost consideration involving the high-temperature heating process. © 2022

关键词： Kaolinite

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Synthesis of Novel Salt-Resistant and High-Temperature Hydroxyapatite Nanoparticle for Rheology, Lubricity, Surface Tension, and Filtration Property Modifications of Water-Based Drilling Mud

Synthesis of Novel Salt-Resistant and High-Temperature Hydro...

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2024 SPE Nigeria Annual International Conference and Exhibition, NAIC 2024

作者： Oseh, J.O. Norddin, M.N.A.M. Duru, U.I. Ngouangna, E.N. Ridzuan, N. Ismail, I. Gbadamosi, A.O. Yahya, M.N. Igwilo, K.U. Okoli, N. Gbonhinbor, J. Agi, A. Department of Petroleum Engineering Faculty of Chemical and Energy Engineering Universiti Teknologi Malaysia Johor Bahru Malaysia Malaysia Petroleum Resources Corporation Institute for Oil and Gas MPRC-UTM Universiti Teknologi Malaysia Johor Bahru Malaysia Advance Membrane Technology Research Centre AMTEC Nanostructured Materials Research Group NMRG - MD - Frontier Materials Universiti Teknologi Malaysia Johor Bahru Malaysia Department of Petroleum Engineering School of Engineering and Engineering Technology Federal University of Technology Imo State Owerri Nigeria Faculty of Chemical and Process Engineering Technology College of Engineering Technology Universiti Malaysia Pahang Al-Sultan Abdullah Pahang Gambang Malaysia Department of Petroleum Engineering King Fahd University of Petroleum and Minerals Dhahran Saudi Arabia Department of Chemical and Petroleum Engineering Bayero University Kano Gwarzo Road Kano Nigeria Department of Petroleum Engineering Niger Delta University Wilberforce Island Bayelsa State Nigeria

ISBN: (纸本)9781959025474

Optimal additives are often needed to improve the performance of water-based muds (WBMs) in tough drilling conditions like deep water reservoirs, salty formations, and high-temperature wells. The efficiency and contribution of nanoparticles (NPs) in enhancing the performance of WBMs in these tough drilling conditions have been continuously demonstrated in recent applications. Nevertheless, the use of NPs in drilling fluids is still very new, and their higher specific surface energy frequently compromises their stability within the fluid system. This has resulted in a decline in drilling performance and outputs, highlighting the importance of using well-dispersed and stabilized additives in drilling fluids. Hydroxyapatite nanoparticles (nanoHAp) were therefore designed in situ through the chemical precipitation technique with sodium dodecyl sulphate (SDS) to improve the lubricity, rheology, and filtration properties of WBM. It was also developed to reduce surface tension, resist calcium chloride (CaCl2) contamination, and improve the drilling of high-temperature wells. NanoHAp in various amounts (0.1, 0.2, 0.3, 0.4, and 0.5 wt. %) were added to conventional WBM, BN-WBM (bentonite-water solution), and BN/Ca (bentonite solution contaminated with CaCl2) at 25, 150, 180, and 210 °C. The results showed that nanoHAp exhibits excellent thermal stability. At 210 °C and 1021 s-1 shear rate, its concentrations of 0.1-0.5 wt.% increased the viscosity by 42.4-122% over the reference sample at 30 mPa-s. Under the same conditions, they decreased the fluid loss from 44.6 mL to 10.9-21.8 mL. They also served as friction and surface tension agents, improving the lubricity by 7.8-47.5% from 0.295 and reducing the surface tension by 5.1-29% from 59 dyne/cm3 at 25°C. In salt resistance tests, the BN/Ca solution had an excessive viscosity and fluid loss of 155.4 mPa-s and 192 mL, respectively, at 210 °C;however, nanoHAp reduced the viscosity to 50 mPa-s by 67.8% and the fluid loss by 59%

关键词： Bentonite

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Evaluation of NiO supported on waste sludge for the degradation of 2- chlorophenol

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Materials Today: Proceedings 2023年

作者： Kamarularifin, S.N.S. Abdullah, N. Abdullah, H. Ainirazali, N. Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang 26300 Gambang Malaysia Universiti Malaysia Pahang 26300 Gambang Malaysia

Due to the harmful consequences for the environment and human health, chlorophenol is regarded as a hazardous pollutant. This study aims to utilize waste sludge material loaded with NiO (NiO/sludge) as a cost-effective adsorbent for the treatment of 2-Chlorophenol (2-CP). The properties of the NiO/sludge were determined by FTIR and XRD analysis. In a batch study of 2-CP degradation, the effectiveness of NiO/sludge was assessed under a variety of conditions, including pH solution (2-8), temperature (28-50 °C), 2-CP initial concentration (20-80 mg/L), and NiO/sludge dosage (10-40 mg/100 mL). The maximum 2-CP degradation of 98% was reached at 50°C, pH 4, 50 mg/L 2-CP, and 0.3 g of NiO/sludge within 3 h of the reaction process. Under the appropriate circumstances, the optimal cation is exchanged among 2-CP molecules and the surface-active NiO/sludge adsorbent sites. This discovery observed that abundant waste sludge from conventional wastewater treatment plants can be further investigated and used as potential natural adsorbent material for the treatment of industrial effluents. © 2023 Elsevier Ltd. All rights reserved.

关键词： Wastewater treatment

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Carbon catalyst from palm kernel shell (PKS) for methane cracking: Effect of preparation

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Materials Today: Proceedings 2023年

作者： Hazman, Nurul Fathin Syuhada Zaki, Muhammad Syafiq Mat Ideris, Asmida Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Lebuh Persiaran Tun Khalil Yaakob 26300 Kuantan Pahang Malaysia

The effect of preparation on the performance of carbon catalyst derived from palm kernel shell (PKS) in methane cracking was evaluated. The PKS-carbon catalysts were prepared via pyrolysis at different temperatures (550, 650, 750 °C) and for different pyrolysis times (30, 60, 100 min) and their catalytic performance in methane cracking was analysed in a fixed bed reactor. The BET surface area of the PKS-carbon catalyst increased from 40.7 to 43.0 m2/g as the pyrolysis temperature increased from 550 to 650 °C, but decreased to 24.1 m2/g at 750 °C. During methane cracking, the PKS-carbon catalyst prepared at 650 °C demonstrated 30 % initial CH4 conversion and gave the highest initial H2 yield of up to 88 %. This indicates that pyrolysis temperature influences the carbon catalyst's surface area, and a higher surface area promotes better initial catalytic activity in methane cracking. In addition, the PKS-carbon catalyst prepared for longer pyrolysis time (100 min) contained more desirable surface oxygen-containing functional groups (-OH, C=O, -COOH) than the ones prepared for 30 and 60 min. Therefore, the PKS-carbon catalyst pyrolyzed for 100 min exhibited 35 % initial CH4 conversion and the highest initial H2 yield of 95 %. This suggests that a longer pyrolysis time produces more desirable surface oxygen-containing functional groups, which enhance reactant activation in methane cracking. In conclusion, the preparation of PKS-carbon catalyst influences the surface area and surface oxygen- containing functional groups, which affect the catalyst's performance in methane cracking. © 2023 Elsevier Ltd. All rights reserved.

关键词： Catalyst activity

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