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2023 SPE Nigeria Annual International Conference and Exhibition, NAIC 2023

作者： Al-Ani, M. Sidek, M.A. Jaafar, M.Z. Agi, A. Gbonhinbor, J. Ridzuan, N. Mahat, S.Q.A. Yakassai, F. Ngouangna, E. Oseh, J. Department of Petroleum Engineering School of Chemical and Energy Engineering Faculty of Engineering Universiti Teknologi Malaysia Malaysia Institute for Oil and Gas IFOG Universiti Teknologi Malaysia Malaysia Faculty of Chemicaland Process Engineering Technology College of Engineering Technology Universiti Malaysia Pahang Gambang Pahang Malaysia Centre for Research in Advanced Fluid and Processes Fluid Centre Universiti Malaysia Pahang Gambang Pahang Malaysia Department of Petroleum Engineering Faculty of Engineering Niger Delta University Wilberforce Island Bayelsa State Nigeria Department of Chemical and Petroleum Engineering Faculty of Engineering Bayero University Kano State Kano Nigeria

ISBN: (纸本)9781959025177

The increase in carbon dioxide (CO2) and other greenhouse gases emission into the atmosphere has resultedin global warming and climate change. CO2 capture and storage are viable option to mitigate againstthis problem. Hence, in this study the potential of CO2 storage in the Malay Basin for enhanced oilrecovery (EOR) was evaluated using Eclipse. Likewise, the effect of the synergy between CO2 ratio andliquefied petroleum gas (LPG) mixture on optimum miscible pressure (MMP) for CO2 storage and CO2-EOR process was investigated. The results indicate that 137 MMSCF of CO2 can be stored through thisprocess. Consequently, the total amount of oil production was within range of 190 MMSTB to 230 ***, the volume of oil production through the process of CO2-EOR increased with increase in injectionof CO2. Injection of CO2 and LPG mixture show that MMP decreased from 1,910 psi to 1,700 psi. Therefore, it can be concluded from this study that CO2-EOR process followed the multiple contact miscibility schemewhereby the residual oil was swept towards the producing wells. Copyright © 2023 Society of Petroleum Engineers.

关键词： Carbon dioxide

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Evaluation of the physical properties of local wheat husk ash and its effects on the compressive strength of hardened cement paste

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Discover Chemistry 2025年第1期2卷 1-14页

作者： Farhat, Masuoda Al Madani, Mohammed A. Abdullah, Taha Embaya, Mohammed Saeed, Abdulla Saleh, Abdulla Fenniche, Fares Khane, Yasmina Materials and Corrosion Engineering Department Sebha University Sabhā Libya Chemical Engineering Department Sebha University Sabhā Libya Process Engineering Department Faculty of Science and Technology Ghardaïa University Bounoura Algeria Materials Energy Systems Technology and Environment Laboratory Faculty of Sciences and Technology University of Ghardaïa Ghardaïa Algeria Faculty of Sciences and Technology University of Ghardaïa Ghardaïa Algeria

The dehusking of wheat results in the significant annual production of wheat husk, an agricultural byproduct. This waste is often burned outdoors to generate energy, with the resulting ash (wheat husk ash, WHA) typically disposed of in landfills, leading to environmental harm. To mitigate the negative environmental impact, this research explores the potential of utilizing wheat husk ash to enhance the mechanical properties of cement paste. The study involved the partial replacement of Portland cement in the mixture with varying proportions of wheat husk ash (0, 5, 10, 15, 20, 25 and 30%) to produce WHA blended cement with sample with 0% as the control, and examined the compressive strength of hardened cement paste (HCP) at different curing ages (3, 7, 14, and 28 days). chemical water tests revealed that the water-to-cement ratio required for standard HCP increased linearly with the proportion of WHA in the mix. Additionally, it was found that the bulk density of HCP decreased as the percentage of WHA increased. Compressive strength tests of the HCP samples yielded promising results, particularly with 15% (30.04) and 20% (28.73) WHA replacement. The compressive strength improved by approximately 14% with 15% WHA replacement and by 10% with 20% WHA replacement. In conclusion, the incorporation of wheat husk ash (WHA) at optimal percentages in cement mixtures enhances the compressive strength of hardened cement paste, particularly after full curing. This study highlights not only the mechanical improvements achieved through WHA integration but also its potential to significantly reduce the carbon footprint of cement production, demonstrating a dual advantage of improved material performance and environmental sustainability.

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NOVEL NANOFIBER MATERIAL WITH MAGNETIC PROPERTIES FOR CARDIAC CELL CULTURES

NOVEL NANOFIBER MATERIAL WITH MAGNETIC PROPERTIES FOR CARDIA...

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26th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2022

作者： Kolodziejek, Dominik Tadko, Oliwia Wojasiński, Michal Lopianiak, Iwona Drozd, Marcin Jastrzebska, Elzbieta Faculty of Chemistry Warsaw University of Technology Poland Departament of Biotechnology and Bioprocess Engineering Faculty of Chemical and Process Engineering Warsaw University of Technology Poland Center for Advanced Materials and Technologies Warsaw University of Technology Poland

ISBN: (纸本)9781733419048

Cardiovascular disease (CVD) is one of the leading causes of death in the world. Therefore, new therapies and drugs are often sought to improve the patient's condition. However, it is necessary to use precise cellular models to do this. Therefore, we developed a new polyurethane (PU) nanofiber material (with magnetic properties), which can be used as a culture model on both macro and microscale. It was proved that the mechanical movement of the fibers (obtained through magnetic stimulation) and parallel nanofiber's orientation improve the maturation of cardiac cell culture. © 2022 MicroTAS 2022 - 26th International Conference on Miniaturized Systems for Chemistry and Life Sciences. All rights reserved.

关键词： Nanofibers

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Modelling the Effect of Co(Ii)/Sio2 Catalyst Pellet Loading for Low-Temperature Voc Abatement with Ozone

SSRN

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SSRN 2024年

作者： Machniewski, Piotr Bialowąs, Bartosz Faculty of Chemical and Process Engineering Warsaw University of Technology ul Waryńskiego 1 Warszawa00-645 Poland

Gas phase oxidation of VOCs utilising ozone can be an attractive, energetically efficient process for treating industrial exhaust gas *** work focuses on applying cobalt(II) adsorbed on silica gel pellets as the catalyst for low-temperature VOC abatement. The effect of cobalt loading on the activity of the catalyst in gas phase toluene decomposition with ozone was investigated in this work. The experiments carried out in a fixed bed reactor at the temperature of 40 ºC revealed a monotonic increase of ozone decomposition rate with cobalt loading in the absence of toluene and non-monotonic conversion rates during toluene oxidation with ozone revealing maximum rate at cobalt loading of approximately 0.6 – 0.8% Co (by mass). The proposed kinetic model of toluene oxidation with ozone over the Co(II)/SiO2 catalyst reproduces the observed trends and accurately predicts the measured conversions of both toluene and ozone. © 2024, The Authors. All rights reserved.

关键词： Catalytic oxidation

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HYPOXIA SIMULATION IN PC-PDMS-PC MICROSYSTEM INTEGRATED WITH NANOFIBROUS MATS

HYPOXIA SIMULATION IN PC-PDMS-PC MICROSYSTEM INTEGRATED WITH...

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26th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2022

作者： Kolodziejek, Dominik Sierańska, Urszula Wojasiński, Michal Lopianiak, Iwona Brzozka, Zbigniew Jastrzebska, Elzbieta Faculty of Chemistry Warsaw University of Technology Poland Departament of Biotechnology and Bioprocess Engineering Faculty of Chemical and Process Engineering Warsaw University of Technology Poland Center for Advanced Materials and Technologies Warsaw University of Technology Poland

ISBN: (纸本)9781733419048

Hypoxia is a state which causes significant changes in tissues and influences pathological cardiovascular conditions. Standard incubators with a low oxygen concentration are most often used to study hypoxia. Although much research on hypoxia and cardiovascular disease has been performed, there is a need to investigate this more deeply. We have developed a new polycarbonate-polydimethylsiloxane-polycarbonate (PC-PDMS-PC) microsystem, in which the hypoxia state was ensured and studied. ATP levels in cardiac cells cultured in the developed microsystem (integrated with nanofibers) under hypoxia and normoxia were successfully defined. © 2022 MicroTAS 2022 - 26th International Conference on Miniaturized Systems for Chemistry and Life Sciences. All rights reserved.

关键词： Polycarbonates

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Rheological and Filtration Property Enhancement of a Water-Based Drilling Mud Using Modified Graphene Nanoplatelets Derived from Kenaf Stem

Rheological and Filtration Property Enhancement of a Water-B...

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2024 SPE Nigeria Annual International Conference and Exhibition, NAIC 2024

作者： Yahya, M.N. Norddin, M.N.A.M. Ismail, I. Rasol, A.A.A. Oseh, J.O. Mohammed, U. Yakasai, F. Umunnawuike, C. Gbonhinbor, J. Agi, A. Department of Petroleum Engineering Faculty of Chemical and Energy Engineering Faculty of Engineering Universiti Teknologi Malaysia Johor Bahru Malaysia Department of Chemical and Petroleum Engineering Faculty of Engineering Bayero University Nigeria Advanced Membrane Technology Research Centre AMTEC Nanostructured Materials Research Group NMRG - MD - Frontier Materials Universiti Teknologi Malaysia Johor Bahru Malaysia Malaysia Petroleum Resources Corporation Institute for Oil and Gas MPRC-UTM Universiti Teknologi Malaysia Johor Bahru Malaysia Department of Petroleum Engineering School of Energy and Energy Engineering 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 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

Drilling fluids' rheological and filtration qualities have been discovered to be improved by graphene nanoplatelets (GNPs). Research has demonstrated that adding GNPs to water-based mud (WBM) can enhance its plastic viscosity (PV), yield point (YP), gel strength (GS), filtration loss (FL), and filter cake thickness (FCT). Their small particle size, excellent material dispersion, and thermal stability are the reasons behind the usage of GNPs in drilling fluid. Here, GNP from Kenaf stem was synthesized, and its surface was modified with nonionic surfactant triton-X100 to improve its dispersion in aqueous media. The synthesized nanomaterials were subjected to particle size distribution (PSD), energy dispersive X-ray analysis (EDX), and zeta potential analysis to confirm their elemental content, stability, and particle size. Critical analysis and a comparison of the properties of surface modified GNP (GNT) and synthesized GNP from Kenaf (GNK) were conducted in WBM formulations. The materials are stable, according to the zeta potential study, although the EDX results showed that surface modification reduced the oxygen-containing group in GNT. Better rheological properties were obtained by adding the synthesized materials to WBM as an additive. PV increased from 13.5 to 17cp, YP increased from 31 to 40 lb/100ft2, FL control performance improved from 12mL to 6.5mL, and FCT decreased from 2.60 to 1.20mm. It has been discovered that adding GNT to WBM enhances its rheological and filtration properties more effectively than adding GNK, which makes it a viable inclusion for drilling operations. Copyright © 2024, Society of Petroleum Engineers.

关键词： Drilling fluids

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Dynamic modelling of bacteriophage production process

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chemical and process engineering - Inzynieria Chemiczna i Procesowa 2022年第4期43卷 471-482页

作者： Konopacki, Maciej Grygorcewicz, Bartlomiej Gliźniewicz, Marta Milek, Dominika Kordas, Marian Rakoczy, Rafal West Pomeranian University of Technology in Szczecin Faculty of Chemical Technology and Engineering Department of Chemical and Process Engineering al. Piastów 42 Szczecin71-065 Poland Pomeranian Medical University in Szczecin Chair of Microbiology Immunology and Laboratory Medicine Department of Laboratory Medicine al. Powstańców Wielkopolskich 72 Szczecin70-111 Poland

Bacteriophages, viruses that can infect bacteria, are promising alternatives for antibiotic treatment caused by antibiotic-resistant bacteria strains. For that reason, the production of bacteriophages is extensively studied. Mathematical modelling can lead to the improvement of bioprocess by identification of critical process parameters and their impact on the demanded product. Dynamic modelling considers a system (i.e. bioreactor or bioprocess) as a dynamic object focusing on changes in the initial and final parameters (such as biomass concentration and product formation) in time, so-called signals and treats the studied system as a "black box" that processes signals. This work aimed to develop a mathematical model that describes bacteriophage production process. As result, we created a dynamic model that can estimate the number of bacteriophages released from cells as plaque-forming units at specific time points based on the changes in the bacteria host-cell concentration. Moreover, the proposed model allowed us to analyze the impact of the initial virus concentration given by multiplicity of infection (MOI) on the amount of produced bacteriophages. © 2022. The Author(s).

关键词： Simulink

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Biopolymers from waste biomass and its applications in the cosmetic industry: A review

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Materials Today: Proceedings 2022年 68卷 873-879页

作者： Gupta, Shreya Sharma, Swati Kumar Nadda, Ashok Saad Bala Husain, Mohamed Gupta, Arun University Institute of Biotechnology Chandigarh University Punjab Mohali 140413] India Department of Biotechnology and Bioinformatics Jaypee University of Information Technology Waknaghat Solan 173 234 India Faculty of Chemical and Process Engineering Technology Universiti Malaysia Pahang Pahang Gambang 26300 Malaysia

The utilization of cosmetics is not a recent practice. In ancient times, kohl was used by women to darken their eyelids, also, milk is used during bathing to get soften and whiten skin. Cosmetics have a huge market all over the world, and a business of billion dollars per annum. An extensive variety of ingredients involves polymers, minerals, chemicals, and also other materials like preservatives, color, pH stabilizers, emulsifiers, and thickeners to convey anticipated characteristics to the cosmetics products. Over the past years, biopolymeric materials have gained a lot of attraction in the global cosmetics industry because of their price, durability, and adaptability. Consumer awareness concerning the harmful influence of synthetic polymers on the atmosphere guides the path for biopolymer development from natural sources. Cosmetic polymers are utilized for the nanoparticle's preparation for the fragrance's delivery. Also, nanoparticles have been loaded with dermal permeation enhancers to enhance their bioactivities on the skin. Natural polymers in cosmetic formulations are of specific significance due to their eco-friendly, safe, and biocompatible characteristics. These formulations are appropriate for a number of applications such as hair, skincare, and make-up as they are highly attractive and marketable to consumers. In this review, the applications of biopolymers such as starch, chitosan, cellulose, collagen, keratin, Polyhydroxyalkanoates (PHA), etc., in cosmetic and cosmetic packaging are discussed. © 2022

关键词： Cosmetics

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Two-stage bacteriophage production process supported by the electromagnetic field

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chemical and process engineering - Inzynieria Chemiczna i Procesowa 2022年第4期43卷 491-506页

作者： Rakoczy, Rafal Konopacki, Maciej Kordas, Marian Grygorcewicz, Bartlomiej West Pomeranian University of Technology in Szczecin Faculty of Chemical Technology and Engineering Department of Chemical and Process Engineering al. Piastów 42 Szczecin71-065 Poland Pomeranian Medical University in Szczecin Chair of Microbiology Immunology and Laboratory Medicine Department of Laboratory Medicine al. Powstańców Wielkopolskich 72 Szczecin70-111 Poland

The practical applications of bacteriophages are associated with the problems related to the intensification, optimization of process production of this biomaterial and the search for new methods of production. The production of bacteriophages requires a fine balance between the dynamic growth of the bacteriophage and the host. The electromagnetic field (EMF) is a promising biotechnological method for the process production of bacteriophages. This study evaluates the use of various types of EMF to enhance the process. It was found that the process production of bacteriophages is divided into two stages. In the first stage, the influence of various types of EMF on the proliferation process of bacteria (host) was analyzed. Secondly, the process production of bacteriophage was implemented for the optimal infection conditions under the action of the various types of EMF. Moreover, the study demonstrated that the most effective bacteriophage production was the process with the application of the rotating magnetic field (RMF), pulsed magnetic field (PMF) and the static magnetic field (SMF) with negative polarity. © 2022. The Author(s).

关键词： Electromagnetic fields

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Fe-Ni-F electrocatalyst for enhancing reaction kinetics of water oxidation

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Chinese Journal of Structural Chemistry 2024年第2期43卷 60-65页

作者： Yi Zhang Biao Wang Chao Hu Muhammad Humayun Yaping Huang Yulin Cao Mosaad Negem Yigang Ding Chundong Wang School of Chemical Engineering and Pharmacy Key Laboratory of Green Chemical Process of Ministry of EducationKey Laboratory of Novel Reactor and Green Chemical Technology of Hubei ProvinceWuhan Institute of TechnologyWuhan430073PR China Energy Waterand Environment LabCollege of Humanities and SciencesPrince Sultan UniversityRiyadh11586Saudi Arabia School of Integrated Circuits Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan430074PR China Physics Laboratory Industrial Training CenterShenzhen Polytechnic UniversityShenzhen518055PR China Chemistry Department Faculty of ScienceFayoum UniversityFayoum63514Egypt

Highly active and low-cost oxygen evolution reaction(OER)catalytic electrodes are extremely essential for exploration of green hydrogen via water ***,an advanced Fe-Ni-F electrocatalyst is fabricated by a facile annealing strategy using ammonium fluoride,of which the structure feature is unveiled by XRD,FESEM,TEM,EDS,BET,and XPS *** as-prepared Fe-Ni-F addresses a low overpotential of 277 mV and a small Tafel slope of 49 mV dec^(-1)at a current density of 10 mA cm^(-2),significantly outperforming other control samples as well as the state-of-the-art RuO_(2).The advanced nature of our Fe-Ni-F catalyst could also be further evidenced from the robust stability in KOH alkaline solution,showing as 5.41%degradation after 24 h continuous *** analysis,it suggests that the decent catalytic activity should be attributed to the formed bimetallic(oxy)hydroxides because of the introduction of fluoride and the synergistic effect of iron and nickel towards oxygen *** work represents the potential of Fe-and/or Ni-based fluoride as efficient catalyst for low-energy consumption oxygen generation.

关键词： Fluoride Oxygen evolution reaction Fe-Ni-F Reaction kinetics

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