Article
Chemistry, Physical
Amir Hossein Nikoo, M. Reza Malayeri
Summary: This study investigated the impact of water injection on oil recovery efficiency, revealing the promoting effect of high salinity on gypsum scale formation. It also demonstrated that different subcomponents of rock surface energy have varying influences on scale formation.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Energy & Fuels
Andreas Tzachristas, Dimitra G. Kanellopoulou, Souhail Youssef, Olga Vizika-Kavvadias, Petros G. Koutsoukos, Christakis A. Paraskeva, Varvara Sygouni
Summary: The previous studies have revealed that the surface wettability has a significant effect on the crystals formed during the flow of CaCl2 and NaHCO3 in microchips. Trapped oil-waterinterfaces were found to accelerate crystal nucleation, growth, and morphology. In this study, the precipitation of CaCO3 in hydrophobic and hydrophilic microchips in the presence of the commonly used anionic surfactant AOT was investigated.
Article
Geology
John M. Rivers, Ruqaiya Yousif, Stephen E. Kaczmarek, Ismail Al-Shaikh
Summary: In the modern arid coastal systems of Qatar, replacement of calcium carbonate deposits by dolomite is not significant, with modern and mid-Holocene coastal deposits retaining their original mineralogy. Pleistocene coastal deposits are mostly absent, possibly due to lack of coastal marine lithification and meteoric cementation in the highly-arid realm. Marine Palaeogene and Miocene carbonate deposits in Qatar are preserved and have undergone marine lithification by dolomite, promoting retention of carbonate strata through subsequent lowstands. This suggests that the occurrence of dolomite in arid depositional settings may be influenced by preservation bias.
Article
Engineering, Petroleum
Jiahui You, Kyung Jae Lee
Summary: This study analyzes the acid-rock interaction and subsequent permeability evolution during CO2 injection using a pore-scale reactive transport model. It reveals that fracture connectivity has a significant impact on porosity-permeability relationship, while its influence on dissolution rate is minimal. Additionally, high calcium ion concentration in poorly connected areas suggests slow dissolution reactions in those regions due to CO2 enrichment.
Review
Engineering, Chemical
Arun Kumar Narayanan Nair, Mohd Fuad Anwari Che Ruslan, Marcia Luna Ramirez Hincapie, Shuyu Sun
Summary: This article presents an overview of molecular simulations used to understand the two-phase behavior of brine or alkane in the presence of CH4, CO2, and their mixture at reservoir conditions. The simulation results showed good agreement with experimental data and theoretical estimates. The study found that CO2 is preferentially dissolved in the water-rich or alkane-rich phase and enriched at the interface in the CH4/CO2 mixture. The findings also explained the decrease in interfacial tension with pressure in the presence of CO2.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Physical
Nilesh Choudhary, Arun Kumar Narayanan Nair, Shuyu Sun
Summary: Molecular dynamics simulations were used to study the interfacial behavior of a decane + brine + surfactant + CH4 + CO2 system at reservoir conditions. The addition of CH4, CO2, and SDS surfactant at the interface reduced the interfacial tensions of decane + water and decane + brine systems, while salt increased the tensions. The enrichment of CH4 and/or CO2 in the interfacial region decreased with increasing surfactant concentration.
Article
Construction & Building Technology
Jose S. Andrade Neto, Erich D. Rodriguez, Paulo J. M. Monteiro, Angeles G. De la Torre, Ana Paula Kirchheim
Summary: This study assessed the effects of gypsum on the hydration of C3S and Al-C3S. It was found that gypsum retarded the initial hydration but enhanced the subsequent hydration due to the interaction between sulfate ions and C3S. The enhancement of C3S hydration by gypsum mainly resulted from changes in C-S-H morphology and increases in ionic strength.
CEMENT AND CONCRETE RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Linfei Li, Jeremy F. Schultz, Sayantan Mahapatra, Xiaolong Liu, Chasen Shaw, Xu Zhang, Mark C. Hersam, Nan Jiang
Summary: This study reports the vertical integration of borophene with DBP and measures the angstrom-scale interfacial interactions using UHV-TERS, demonstrating the potential of UHV-TERS as a powerful analytical tool for spectroscopically investigating buried and highly localized interfacial characteristics at the atomic scale. The study also shows the ability of molecular manipulation experiments to provide atomic control of local strain and reveal the molecular origins of interfacial strain in the heterostructure.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Agronomy
Ephantus Nguma, Chandiona Munthali, Daiki Murayama, Kazumitsu Onishi, Masahiko Mori, Rintaro Kinoshita, Shinji Yamashita, Mikio Kinoshita, Masayuki Tani, Mari Palta, Jiwan P. Palta, Hiroshi Koaze, Daigo Aiuchi
Summary: This study aimed to investigate whether the supply of calcium and magnesium-based fertilizers can alter the physicochemical properties of local and hybrid maize varieties and reduce infestation by Prostephanus truncatus during storage. The results showed that the addition of gypsum and dolomite fertilizers increased the hardness and related biochemical properties of maize. Local maize varieties exhibited higher resistance compared to hybrid varieties.
Review
Energy & Fuels
Yongqiang Chen, Ali Saeedi, Quan Xie
Summary: CO2 geological storage is a promising technology to reduce anthropogenic greenhouse gas emissions by injecting CO2 into underground reservoirs. The capillary force plays a crucial role in sealing integrity and the fate of underground CO2, and it is influenced by CO2-brine-rock interactions. This review comprehensively examines both experimental and theoretical investigations to understand the critical role of interfacial interactions in storage integrity of CO2 geological storage.
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2023)
Article
Geochemistry & Geophysics
Hyo Jin Koo, Jeong Kyu Jang, Dong Hun Lee, Hyen Goo Cho
Summary: Authigenic gypsum precipitation linked to methane emission occurs mainly in dolomite-rich sediments in the Arctic Ocean, making gypsum a suitable proxy for identifying methane hydrate zones.
Article
Chemistry, Physical
Xiufeng Gong, Jin Yao, Bin Yang, Jun Guo, Haoran Sun, Wanzhong Yin
Summary: This study focused on the basic research of flotation separation of dolomite from brucite using guar gum (GG) as a selective regulator. The flotation tests showed that the use of GG inhibited the floating of dolomite but did not affect the floatability of brucite. Contact-angle measurements and zeta-potential measurements confirmed the difference in floatability between dolomite and brucite after the action of GG. Infrared-spectrum analysis and X-ray photoelectron spectroscopy detection provided further evidence of the interaction between GG and the mineral surfaces.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
G. Reza Vakili-Nezhaad, Adel Al Ajmi, Ahmed Al Shaaili, Farzaneh Mohammadi, Alireza Kazemi
Summary: The rising CO2 in the atmosphere leads to serious greenhouse effects and sustainable global warming, and carbon capture is one of the most viable approaches to achieve sustainable development goals. Understanding the interaction between N2 and different brines including monovalent and divalent ions is vital for CO2 sequestration in depleted reservoirs or saline aquifers, and interfacial tension (IFT) is one of the important parameters for such applications. The study accurately predicted IFT using adaptive neuro-fuzzy inference system (ANFIS) and artificial neural network (ANN) models, with ANFIS + PSO model showing better predictive power.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Engineering, Environmental
Yiming Yin, Nohyeong Jeong, Ronny Minjarez, Cristian A. Robbins, Kenneth H. Carlson, Tiezheng Tong
Summary: This study compares the efficiencies of antiscalant candidates with different functional groups in mitigating gypsum scaling and silica scaling in membrane distillation desalination. Antiscalants with Ca(II)-complexing moieties are effective for inhibiting gypsum scaling, while amino-enriched antiscalants perform best in mitigating silica scaling. Microscopic and spectroscopic analyses reveal distinct mechanisms of antiscalants required for these two common types of scaling.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Amir Hossein Nikoo, Mohammad Reza Malayeri
Summary: The study presents a model for the kinetics and hydrodynamics of gypsum scale deposition on various rock surfaces, showing a steep decrease in deposition flux over time with a tendency towards stabilization. Higher salinity increases deposition flux, while higher flow velocity results in more deposition on sandstone surfaces.
Article
Environmental Sciences
Meysam Omidvar, Mohammad Reza Malayeri, Farshad Farshchi Tabrizi, Mohammad Mahdi Doroodmand
Summary: Fat, oil, and grease deposits are the main cause of sewer blockage, leading to environmental issues, health hazards, and increased costs for municipalities. This study investigates the impact of used cooking oils on deposit formation and explores the differences in chemical structure and properties between fresh and used oils.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Chemical
Aliye Mohseni, Leila Mahmoodi, M. Reza Malayeri
Summary: This study firstly predicted the critical mixing ratio of formation water and seawater using PHREEQC at different temperatures. Secondly, it experimentally studied the performance of two green scale inhibitors (folic acid and inulin) to determine their optimum concentration and pH for calcite mitigation. The results showed that the inhibition efficiency of the inhibitors increased with temperature. SEM and TGA analyses were also conducted to understand their inhibition mechanisms and thermal performance.
ADVANCED POWDER TECHNOLOGY
(2023)
Article
Thermodynamics
Atefeh Zarei, M. Reza Malayeri
Summary: Micro heat exchangers with high surface-to-volume ratio are gaining attention for their superior heat transfer performance. However, deposition on their surfaces when subjected to fouling fluids is a major concern. This study experimentally investigates the crystallization fouling of calcium sulfate on micro-structured surfaces during convective heat transfer.
EXPERIMENTAL HEAT TRANSFER
(2023)
Article
Thermodynamics
M. Esawy, Amir Hossein Nikoo, M. Reza Malayeri
Summary: The superiority of enhanced boiling on structured heat transfer surfaces is due to excessive bubble generation and behavior as well as the latent heat of evaporation. While these factors lead to higher heat transfer coefficients, they also accelerate fouling for aqueous solutions with inverse solubility. The study finds that Turbo-B tubes demonstrate better anti-fouling behavior compared to plain tubes and low finned tubes.
APPLIED THERMAL ENGINEERING
(2023)
Article
Energy & Fuels
Ahmad Abbasi, M. Reza Malayeri
Summary: In this study, the relationship between crude oil properties and emulsion stability was investigated using the XDLVO theory. The results indicate that total base number (TBN) and polarity of the crude oil medium can reliably predict emulsion stability. Sensitivity analysis showed that electron acceptor/donor components play an important role in short distances between droplets. Adhesion tests revealed that the presence of HCl solution increases the adhesion of crude oils to glass surfaces.
Article
Engineering, Chemical
Ehsan Jafari, M. Reza Malayeri, Heike Brueckner, Peter Krebs
Summary: This study investigated the effects of various operating parameters on the removal efficiency of turbidity from synthetic wastewater using electrocoagulation-flotation (ECF) with aluminium electrodes. The optimal conditions for achieving 90% turbidity removal were found to be a current density of 0.0028 A/cm2, an initial pH of 7.3, an operating time of 5 min, and a stirring speed of 500 rpm.
MINERALS ENGINEERING
(2023)
Article
Energy & Fuels
A. Sanati, M. R. Malayeri, O. Busse, J. J. Weigand, M. Beckmann
Summary: Chemical injection is an effective method to enhance oil recovery, and this study focuses on the interfacial activity of halogen-free ionic liquid-based catanionic surfactants. The results demonstrate that the synthesized surfactant with medium-chain ionic liquid (n=8) and sodium dodecyl sulfate has higher interfacial activity, lower crude oil-brine interfacial tension, and good wettability alteration. Moreover, the adsorption density of this surfactant onto the dolomite surface is considerably lower compared to the control experiment. The findings suggest that this catanionic surfactant has great potential for future chemical enhanced oil recovery applications.
Article
Chemistry, Physical
Ahmad Abbasi, M. Reza Malayeri, Maysam Mohammadzadeh Shirazi
Summary: Acid stimulation can cause formation damage due to incompatibility between the injected acid and crude oil, resulting in stable emulsions and acid sludge. This study found that crude oil properties, such as TBN, CII, asphaltene to resin ratio, and aromaticity, affect emulsion stability more than the pH value of the spent acid. The interaction between acid and crude oil is closely related to the characteristics of the interfacial film.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Javad Ebrahimi, Behnam Shahsavani, Mojtaba Ghaedi, M. Reza Malayeri, Masoud Riazi
Summary: This study presents a systematic screening approach to evaluate the efficacy of different inhibitors for two crude oils with high asphaltene content. Results show that DBSA is the most efficient inhibitor, but its applicability is limited in cases where both water production and asphaltene deposition occur simultaneously. Additionally, dispersant 110 demonstrates superior dispersion capabilities under low centrifugal force. Overall, dispersant 110 shows the most promising performance in different test methods.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Esmaeil Hedayati, Maysam Mohammadzadeh-Shirazi, Ahmad Abbasi, M. Reza Malayeri
Summary: Improper acidizing design may lead to the formation and stability issues of acid-oil emulsion, hindering fluid flow in reservoirs. This study investigates the impact of operating conditions and crude oil properties on emulsion stability, and finds that it is influenced by mixing speed, temperature, and viscosity.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Multidisciplinary Sciences
Milad Mohammadpour, M. Reza Malayeri, Yousef Kazemzadeh, Masoud Riazi
Summary: This study investigates the formation and stability of emulsions by measuring the colloidal instability index (CII) under ambient and reservoir conditions. The research finds that when CII is greater than 1.059, the formed emulsion is more stable as a result of the excessive instability of asphaltene. However, when CII is below 1.059, the emulsion tends to be less stable. Higher pressures enhance the stability of the emulsion.
SCIENTIFIC REPORTS
(2023)
Article
Energy & Fuels
Leila Mahmoodi, Amir Hossein Nikoo, M. Reza Malayeri, Masoud Riazi
Summary: This study investigates the most significant removal mechanisms of shear force, rolling, and rebound for asphaltene deposits under field operating conditions. The findings reveal that the removal of asphaltene is controlled by shear force, rolling, and rebound under geological conditions, while the impact of oil properties, casing diameter, and casing material is negligible. Additionally, larger asphaltene particles have a higher possibility of removal. The sticking probability is examined to calculate the proportion of precipitated asphaltene particles that will ultimately attach to the casing surface.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Environmental Sciences
Ehsan Jafari, M. Reza Malayeri, Heike Brueckner, Thomas Weimer, Peter Krebs
Summary: The performance of the electrocoagulation-flotation (ECF) process can be improved by using a new spiral electrode configuration. The new configuration reduces energy consumption and improves removal efficiency of contaminants from industrial wastewater. Enhanced flow hydrodynamics also leads to a reduction in foam formation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Chemical
Qing Han, Mengqing Shi, Linkai Han, Di Liu, Mingwei Tong, Yuxin Xie, Zhonghua Xiang
Summary: Developing highly efficient bifunctional oxygen electrocatalysts is crucial for zinc-air flow batteries. Metal-organic frameworks (MOFs) and covalent organic polymers (COPs) have emerged as promising alternatives due to their designable and controllable atomic-level structures. However, their catalytic performances are limited by conductivity and catalytic activity. In this study, nanosheet FeNi-MOF and iron phthalocyanine rich COP hybrid materials are assembled through the pi-pi stacking effect to create highly efficient bifunctional electrocatalysts. The resulting catalyst exhibits superior catalytic performance and stability, making it a promising candidate for zinc-air flow batteries.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Daria Grigorash, Dmytro Mihrin, Rene Wugt Larsen, Erling H. Stenby, Wei Yan
Summary: The article introduces a new approach to describe the cross-association between molecules, allowing for the simulation of weakly bound molecular complexes with different conformations in mixtures. By incorporating this approach into the equation of state, accurate predictions of vapor-liquid equilibrium and liquid-liquid equilibrium can be made. The new method is validated through experiments on alcohol and acid mixtures, with the results compared to experimental data, demonstrating its accuracy and reliability.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Mohammed Al-Sharabi, Daniel Markl, Vincenzino Vivacqua, Prince Bawuah, Natalie Maclean, Andrew P. E. York, Axel Zeitler
Summary: This study used terahertz pulsed imaging to investigate the transport process of different solvents into ceramic catalytic materials. The results showed that the heating rate of the samples influenced the water transport rate, while the viscosity of 1-octanol slowed down its transport.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Chukwunonso Anyaoku, Sati Bhattacharya, Rajarathinam Parthasarathy
Summary: This study aimed to enhance understanding of settling dynamics in viscoelastic fluids by developing a semi-empirical correlation and a dimensionless ratio, which accurately described the characteristics of settling suspensions.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Antti I. Koponen, Janika Viitala, Atsushi Tanaka, Baranivignesh Prakash, Olli-Ville Laukkanen, Ari Jasberg
Summary: This study focuses on the development of foam application chemicals for the paper and board industry. The research explores the rheology of the polyvinyl alcohol foam used in the process. Measurements were conducted to determine the foam viscosity and slip flow. The results suggest that slip flow contributes significantly to the total flow rate, and the obtained viscosity and slip models provide a solid foundation for industrial processes.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Dalei Sun, Jinghui Cai, Yating Yang, Zhiwu Liang
Summary: In this study, Fe-doped alpha-Bi2O3 catalysts with different Fe/Bi molar ratios were synthesized and utilized in the carbonylation of isobutyl amine with CO2. The results showed that Fe doping significantly enhanced the catalytic abilities of alpha-Bi2O3.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Yuan Tian, Xinxin Wang, Yanrong Liu, Wenping Hu
Summary: This paper predicts the solubility of nitrogen gas in ionic liquids (ILs) using two quantitative structure-property relationship (QSPR) models. By combining machine learning methods and ionic fragments contribution method, the accuracy and reliability of the prediction models are improved.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Liwang Wang, Wei Liu, Pan Yang, Yulong Chang, Xiaoxu Duan, Lingyu Xiao, Yaoming Hu, Jiwei Wu, Liang Ma, Hualin Wang
Summary: This study investigates the effective phase interfacial area (ae) of hydro-jet cyclones at different injection angles. The results show that a 45 degrees upward incidence angle yields the most favorable flow field characteristics for efficient mass transfer. The significant enhancement in ae of the hydro-jet cyclones offers the advantage of reducing equipment volume and cost savings.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Chuanjun Wu, Jiangzhi Chen, Jiyue Sun, I-Ming Chou, Shenghua Mei, Juezhi Lin, Lei Jiang
Summary: In this study, the solubility of H2S hydrate in water was measured using Raman spectroscopy. The results showed that the solubility increases with temperature under certain equilibrium conditions, and the solubility also depends on pressure and temperature under different equilibrium conditions. A thermodynamic model based on the van der Waals-Platteeuw theory was developed to predict the solubility, demonstrating its accuracy.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Lorenzo Brivio, Serena Meini, Mattia Sponchioni, Davide Moscatelli
Summary: This study investigates the influence of three main parameters and proposes a kinetic model to predict the optimal operating conditions for high yield of dimethyl terephthalate (DMT) in the chemical recycling process of polyethylene terephthalate (PET).
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Hongju Lin, Fanhui Liao, Yanchang Chu, Mingyu Xie, Lun Pan, Yuanyuan Wang, Lijian Leng, Donghai Xu, Le Yang, Gangfeng Ouyang
Summary: A honeycomb NiCo/C-Na catalyst with a micro-meso-macroporous structure has been fabricated and shown to have significantly higher catalytic activity for the decarboxylation of fatty acids. It also proves to be efficient in upgrading sludge HTL bio-crude, resulting in a biofuel with decreased viscosity and increased density.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Xiaoxian Li, Rui Li, Min Lin, Mingde Yang, Yulong Wu
Summary: A series of coated non-noble metal porous carbon catalysts were synthesized and applied to the aqueous-phase deoxygenation of algal bio-oil. One of the catalysts showed excellent deoxygenation selectivity and catalytic activity at 250 degrees C. The catalyst exhibited good hydrothermal stability and the reaction mechanism was proposed based on product analysis and active site analysis.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
M. V. Chudakova, M. V. Popov, P. A. Korovchenko, E. O. Pentsak, A. R. Latypova, P. B. Kurmashov, A. A. Pimenov, E. A. Tsilimbaeva, I. S. Levin, A. G. Bannov, A. V. Kleymenov
Summary: A series of catalysts with different potassium contents were prepared using solution combustion synthesis and characterized using various techniques. The results showed that the potassium content affected the phase composition and texture of the catalysts. The addition of a small amount of potassium resulted in a change in particle size distribution, leading to higher hydrogen yield. The Ni-1%K2O/Al2O3 catalyst exhibited the highest hydrogen yield at temperatures of 675 and 750 degrees Celsius.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Aliakbar Roosta, Nima Rezaei
Summary: In this study, we modified the electrolyte cubic plus association equation of state (e-CPA EoS) and integrated it with two electrical conductivity models to estimate the electrical conductivity of 11 monovalent electrolyte solutions in water. The modified e-CPA model demonstrated better performance and the hybridization with electrical conductivity models resulted in two predictive models for estimating the electrical conduction of dilute and concentrated electrolyte solutions. These predictive models showed relative average percentage deviations (AARD) of 11.15% and 13.87% over wide ranges of temperature and electrolyte concentration.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Haoren Niu, Jianzheng Wang, Qingzhu Jia, Qiang Wang, Jin Zhao, Fangyou Yan
Summary: A study developed two quantitative structure-property relationship models for the complexation performance of alpha- and beta-cyclodextrins and validated their stability and predictive ability through internal and external validation. The models showed robustness and satisfactory performance, as demonstrated by the experimental results and model validations. These models can effectively predict the binding constants between cyclodextrins and various types of molecules, providing valuable tools for cyclodextrin design.
CHEMICAL ENGINEERING SCIENCE
(2024)
