Article
Chemistry, Physical
Ernest Peter Maiki, Renyuan Sun, Shaoran Ren, Ayman Mutahar AlRassas, Yingsong Huang
Summary: This study utilizes electro-kinetic potential measurements to predict the low salinity effect in a sandstone reservoir. Comprehensive investigations using Zeta potential, interfacial tension, FTIR spectroscopy, and contact angle measurements provide valuable insights. The results indicate core aging, adsorption of organic compounds, wettability alteration, and reduced contact angles, supporting the presence of the low salinity effect. This study enhances our understanding of the low salinity effect in sandstone reservoirs and highlights the potential of electro-kinetic potential measurements as a predictive tool for evaluating its impact on reservoir performance.
Review
Thermodynamics
Masoud Aslannezhad, Muhammad Ali, Azim Kalantariasl, Mohammad Sayyafzadeh, Zhenjiang You, Stefan Iglauer, Alireza Keshavarz
Summary: Hydrogen is considered a clean fuel for mitigating climate change by reducing greenhouse gas emissions, but large-scale storage of hydrogen is a challenge due to its compressibility, volatility, and flammability. This review focuses on the wettability of hydrogen in geological formations as a potential storage solution. It discusses the influence of parameters such as salinity, temperature, pressure, surface roughness, and formation type on wettability and storage capacity. The review also discusses the effect of organic material and presents influential parameters affecting storage safety. Overall, this review provides valuable insights for understanding hydrogen storage challenges and identifying storage solutions.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2023)
Article
Chemistry, Physical
Davin Kumar, Tarek Ganat, Najeebullah Lashari, Mohammed Abdalla Ayoub, Shams Kalam, Tariq Ali Chandio, Berihun Mamo Negash
Summary: The interest in designing and developing polymeric nanoparticles has grown in recent years due to their ability to enhance various properties and increase oil recovery. The addition of GO and SiO2 into HPAM significantly improves rheological properties, reduces interfacial tension, and shows promising results under harsh reservoir conditions.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Hemant Kumar, Siliveru Upendar, Ethayaraja Mani, Madivala G. Basavaraj
Summary: We propose a method to destabilize Pickering emulsions by transiently perturbing the oil-water interface through the transport of a mutually soluble solute. Visual observation and bright field optical microscopy are used to record the macroscopic and microscopic changes induced in these highly stable emulsions. The method is shown to be effective for different types of solutes and stabilizers, and for both oil-in-water (o/w) and water-in-oil (w/o) emulsions with different non-polar solvents as the oil phase.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Energy & Fuels
Dayo Akindipe, Soheil Saraji, Mohammad Piri
Summary: This study investigates the application of carbonated water injection (CWI) in oil-wet carbonate rocks and reveals that wettability reversal aided by potential determining ions (PDIs) is the main mechanism for oil recovery.
Article
Materials Science, Multidisciplinary
Xiaoqiang Wu, Xu Hu, Jifang Xu, Lijuan Su, Jieyu Zhang
Summary: The wetting behavior of molten CaO-Al2O3-MgO-FeO slag on BN substrate was investigated at various temperatures and FeO contents. It was found that the initial contact angle decreases with increasing temperature and FeO content. The surface tension of the slag decreases with increasing FeO content and temperature, and the interfacial tension between the slag and BN substrate shows a similar trend. The interfacial tension is influenced by the modifications in the slag structure caused by FeO addition. The optical basicity is inversely correlated with the interfacial tension, providing a measure of the concentrations of free oxygen ion in the molten slag.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Motaz Saeed, Prashant Jadhawar, Yingfang Zhou, Rockey Abhishek
Summary: This study presents a triple-layer surface complexation model for predicting the zeta potential of the oil-brine interface, with an accuracy between 66% and 99% when validated against experimental data. The model is particularly suitable for LSWF applications at lower salinities, intermediate pH, and higher total acid number. A correlation between (-NH) site density and total acid/base numbers is proposed, while a sensitivity study shows that higher sulphate concentration and elevated temperature lead to a more negative zeta potential at the oil-brine interface.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Energy & Fuels
Abubakar Isah, Mohamed Mahmoud, Muhammad Arif, Murtada Saleh Aljawad, Muhammad Shahzad Kamal
Summary: This study examines the effect of rock surface cleaning on the wettability of rock/oil/brine systems using pure quartz substrates. The results suggest that cleaning agents may not completely remove all adsorbed salts and crude oil components from the rock surfaces and may also adsorb onto the surfaces themselves, altering wettability. Surface energy and the presence of oxygen-containing and nonpolar functional groups play a significant role in determining the wetting behavior.
Article
Chemistry, Physical
Anupong Sukee, Tanakon Nunta, Nawamin Fongkham, Hutthapong Yoosook, Montri Jeennakorn, David Harbottle, Nipada Santha, Suparit Tangparitkul
Summary: Brine fluids have attracted high interest in enhanced oil recovery. This research investigated the effects of brine valency and concentration on crude oil displacement using spontaneous imbibition. The results showed that the concentration of monovalent brines significantly influenced the oil displacement, and the valency of the brines also played a crucial role.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
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)
Review
Energy & Fuels
Nurudeen Yekeen, Eswaran Padmanabhan, Hesham Abdulelah, Sayed Ameenuddin Irfan, Oluwagade Adenike Okunade, Javed Akbar Khan, Berihun Mamo Negash
Summary: This study critically reviewed previous literature on CO2/brine interfacial tension and wettability of rock/CO2/brine systems. Laboratory experiments conducted on shale cores from Malaysian formation showed that the wettability of rock surfaces and CO2/brine interfacial tension changed with increasing temperature, pressure, and salinity. Such changes will greatly impact hydrocarbon recovery and CO2 containment security in Malaysian unconventional shale formations.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Energy & Fuels
Najeebullah Lashari, Tarek Ganat, Shams Kalaam, Tariq Ali Chandio, Tushar Sharma, Saima Qureshi
Summary: The article discusses experimental investigation of a polymeric nanocomposite composed of HPAM/GO-SiO2. Various analysis methods were used to evaluate the resulting composite. The study found that not all parameters equally affect interfacial tension, and the central composite design was deemed optimal for assessing the impact of hybrid polymeric nanofluids.
PETROLEUM SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Hao Wei, Xiao-Yu Yang, Wei Geng, Henny C. van der Mei, Henk J. Busscher
Summary: Surface-engineered encapsulation is a non-genetic method to protect living organisms against harsh environmental conditions. Different cell encapsulation methods exist, yielding shells with different interfacial-interactions with encapsulated, bacterial surfaces. However, the impact of interfacial-interactions on the protection offered by different shells is unclear and can vary for bacteria with different surface composition. Probiotic bacteria require protection against gastro-intestinal fluids and antibiotics. Here, we encapsulated two probiotic strains using ZIF-8 (zeolitic imidazolate framework) biomineralization (strong-interaction by coordinate-covalent bonding), alginate gelation (intermediate-interaction by hydrogen bonding) or protamine-assisted packing of SiO2 nanoparticles yielding a yolk-shell (weak-interaction across a void between shells and bacterial surfaces). The surface of probiotic Lactobacillus acidophilus was rich in protein, yielding a hydrophilic, positively-charged surface below and a negatively-charged one above pH 4.0. Probiotic Bifidobacterium infantis had a hydrophilic, uncharged surface, rich in polysaccharides with little proteins. Although amino groups are required for coordinate-covalent bonding of zinc and hydrogen bonding of alginate, both L. acidophilus and B. infantis could be encapsulated using ZIF-8 biomineralization and alginate gelation. Weakly, intermediately and strongly interacting shells all yielded porous shells. The strongly interacting ZIF-8 biomineralized shell made encapsulated bacteria more susceptible to antibiotics, presumably due to the cell wall damage already inflicted during Zif-8 biomineralization. Overall, weakly interacting yolk-shells and intermediately interacting alginate gels protected best and maintained probiotic activity of encapsulated bacteria. The impact of interfacial-interactions between shells and encapsulated bacteria on different aspects of protection described here, contributes to the further development of effective surface-engineered shells and its application for protecting bacteria.
Review
Geosciences, Multidisciplinary
Faizan Ali, Berihun Mamo Negash, Syahrir Ridha, Hesham Abdulelah
Summary: This study provides an overview of research on wettability and interfacial tension in the shale-CO2-brine system, as well as the investigation of representative caprock minerals. It highlights the potential adverse effects of long-term CO2 interaction with clay-rich shale on wettability and interfacial tension, and the possibility of altering shale characteristics through the use of nanoparticles and surfactants. The study also identifies knowledge gaps in the understanding of acidic conditions caused by CO2 dissolution and the presence of free water in CO2-shale interactions, and recommends further research in these areas.
EARTH-SCIENCE REVIEWS
(2023)
Article
Energy & Fuels
Ankur Gupta, Anurag Pandey, Himanshu Kesarwani, Shivanjali Sharma, Amit Saxena
Summary: The study utilizes the pendant drop method and a Python-based computer program to automatically determine interfacial tension and contact angle for reservoir fluid characterization, showing promising results with a standard deviation of less than 1.7 mN/m. This approach provides a convenient and efficient way to analyze surface properties in petroleum industries.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2022)
Article
Energy & Fuels
Yingna Du, Chen Huang, Wei Jiang, Qiangwei Yan, Yongfei Li, Gang Chen
Summary: In this study, anionic surfactants modified hydrotalcite was used as a flow improver for crude oil under low-temperature conditions. The modified hydrotalcite showed a significant viscosity reduction effect on crude oil. The mechanism of the modified hydrotalcite on viscosity and pour point of crude oil was explored through characterization and analysis of the modified hydrotalcite and oil samples.
Article
Energy & Fuels
Mohammad Saeid Rostami, Mohammad Mehdi Khodaei
Summary: In this study, a hybrid structure, MIL-53(Al)@MWCNT, was synthesized by combining MIL-53(Al) particles and -COOH functionalized multi-walled carbon nanotube (MWCNT). The hybrid structure was then embedded in a polyethersulfone (PES) polymer matrix to prepare a mixed matrix membrane (MMM) for CO2/CH4 and CO2/N2 separation. The addition of MWCNTs prevented MIL-53(Al) aggregation, improved membrane mechanical properties, and enhanced gas separation efficiency.
Article
Energy & Fuels
Yunlong Li, Desheng Huang, Xiaomeng Dong, Daoyong Yang
Summary: This study develops theoretical and experimental techniques to determine the phase behavior and physical properties of DME/flue gas/water/heavy oil systems. Eight constant composition expansion (CCE) tests are conducted to obtain new experimental data. A thermodynamic model is used to accurately predict saturation pressure and swelling factors, as well as the phase boundaries of N2/heavy oil systems and DME/CO2/heavy oil systems, with high accuracy.
Article
Energy & Fuels
Morteza Afkhamipour, Ebad Seifi, Arash Esmaeili, Mohammad Shamsi, Tohid N. Borhani
Summary: Non-conventional amines are being researched worldwide to overcome the limitations of traditional amines like MEA and MDEA. Adequate process and thermodynamic models are crucial for understanding the applicability and performance of these amines in CO2 absorption, but studies on process modeling for these amines are limited. This study used rate-based modeling and Deshmukh-Mather method to model CO2 absorption by DETA solution in a packed column, validated the model with experimental data, and conducted a sensitivity analysis of mass transfer correlations. The study also compared the CO2 absorption efficiency of DETA solution with an ionic solvent [bmim]-[PF6] and highlighted the importance of finding optimum operational parameters for maximum absorption efficiency.
Article
Energy & Fuels
Arastoo Abdi, Mohamad Awarke, M. Reza Malayeri, Masoud Riazi
Summary: The utilization of smart water in EOR operations has gained attention, but more research is needed to understand the complex mechanisms involved. This study investigated the interfacial tension between smart water and crude oil, considering factors such as salt, pH, asphaltene type, and aged smart water. The results revealed that the hydration of ions in smart water plays a key role in its efficacy, with acidic and basic asphaltene acting as intrinsic surfactants. The pH also influenced the interfacial tension, and the aged smart water's interaction with crude oil depended on asphaltene type, salt, and salinity.
Article
Energy & Fuels
Dongao Zhu, Kun Zhu, Lixian Xu, Haiyan Huang, Jing He, Wenshuai Zhu, Huaming Li, Wei Jiang
Summary: In this study, cobalt-based metal-organic frameworks (Co-based MOFs) were used as supports and co-catalysts to confine the NHPI catalyst, solving the leaching issue. The NHPI@Co-MOF with carboxyl groups exhibited stronger acidity and facilitated the generation of active oxygen radicals O2•, resulting in enhanced catalytic activity. This research provides valuable insights into the selection of suitable organic linkers and broadens the research horizon of MOF hybrids in efficient oxidative desulfurization (ODS) applications.
Article
Energy & Fuels
Edwin G. Hoyos, Gloria Amo-Duodu, U. Gulsum Kiral, Laura Vargas-Estrada, Raquel Lebrero, Rail Munoz
Summary: This study investigated the impact of carbon-coated zero-valent nanoparticle concentration on photosynthetic biogas upgrading. The addition of nanoparticles significantly increased microalgae productivity and enhanced nitrogen and phosphorus assimilation. The presence of nanoparticles also improved the quality of biomethane produced.
Article
Energy & Fuels
Yao Xiao, Asma Leghari, Linfeng Liu, Fangchao Yu, Ming Gao, Lu Ding, Yu Yang, Xueli Chen, Xiaoyu Yan, Fuchen Wang
Summary: Iron is added as a flocculant in wastewater treatment and the hydrothermal carbonization (HTC) of sludge produces wastewater containing Fe. This study investigates the effect of aqueous phase (AP) recycling on hydrochar properties, iron evolution and environmental assessment during HTC of sludge. The results show that AP recycling process improves the dewatering performance of hydrochar and facilitates the recovery of Fe from the liquid phase.
Article
Energy & Fuels
He Liang, Tao Wang, Zhenmin Luo, Jianliang Yu, Weizhai Yi, Fangming Cheng, Jingyu Zhao, Xingqing Yan, Jun Deng, Jihao Shi
Summary: This study investigated the influence of inhibitors (carbon dioxide, nitrogen, and heptafluoropropane) on the lower flammability limit of hydrogen and determined the critical inhibitory concentration needed for complete suppression. The impact of inhibitors on explosive characteristics was evaluated, and the inhibitory mechanism was analyzed with chemical kinetics. The results showed that with the increase of inhibitor quantity, the lower flammability limit of hydrogen also increased. The research findings can contribute to the safe utilization of hydrogen energy.
Article
Energy & Fuels
Zonghui Liu, Zhongze Zhang, Yali Zhou, Ziling Wang, Mingyang Du, Zhe Wen, Bing Yan, Qingxiang Ma, Na Liu, Bing Xue
Summary: In this study, high-performance solid catalysts based on phosphotungstic acid (HPW) supported on Zr-SBA-15 were synthesized and evaluated for the one-pot conversion of furfural (FUR) to γ-valerolactone (GVL). The catalysts were characterized using various techniques, and the ratio of HPW and Zr was found to significantly affect the selectivity of GVL. The HPW/Zr-SBA-15 (2-4-15) catalyst exhibited the highest GVL yield (83%) under optimized reaction conditions, and it was determined that a balance between Bronsted acid sites (BAS) and Lewis acid sites (LAS) was crucial for achieving higher catalytic performance. The reaction parameters and catalyst stability were also investigated.
Article
Energy & Fuels
Michael Stoehr, Stephan Ruoff, Bastian Rauch, Wolfgang Meier, Patrick Le Clercq
Summary: As part of the global energy transition, an experimental study was conducted to understand the effects of different fuel properties on droplet vaporization for various conventional and alternative fuels. The study utilized a flow channel to measure the evolution of droplet diameters over time and distance. The results revealed the temperature-dependent effects of physical properties, such as boiling point, liquid density, and enthalpy of vaporization, and showed the complex interactions of preferential vaporization and temperature-dependent influences of physical properties for multi-component fuels.
Article
Energy & Fuels
Yuan Zhuang, Ruikang Wu, Xinyan Wang, Rui Zhai, Changyong Gao
Summary: Through experimental validation and optimization of the chemical kinetic model, it was found that methanol can accelerate the oxidation reaction of ammonia, and methanol can be rapidly oxidized at high concentration. HO2 was found to generate a significant amount of OH radicals, facilitating the oxidation of methanol and ammonia. Rating: 7.5/10.
Article
Energy & Fuels
Radwan M. EL-Zohairy, Ahmed S. Attia, A. S. Huzayyin, Ahmed I. EL-Seesy
Summary: This paper presents a lab-scale experimental study on the impact of diethyl ether (DEE) as an additive to waste cooking oil biodiesel with Jet A-1 on combustion and emission features of a swirl-stabilized premixed flame. The addition of DEE to biodiesel significantly affects the flame temperature distribution and emissions. The W20D20 blend of DEE, biodiesel, and Jet A-1 shows similar flame temperature distribution to Jet A-1 and significantly reduces UHC, CO, and NOx emissions compared to Jet A-1.
Article
Energy & Fuels
Jiang Bian, Ziyuan Zhao, Yang Liu, Ran Cheng, Xuerui Zang, Xuewen Cao
Summary: This study presents a novel method for ammonia separation using supersonic flow and develops a mathematical model to investigate the condensation phenomenon. The results demonstrate that the L-P nucleation model accurately characterizes the nucleation process of ammonia at low temperatures. Numerical simulations also show that increasing pressure and concentration can enhance ammonia condensation efficiency.
Article
Energy & Fuels
Shiyuan Pan, Xiaodan Shi, Beibei Dong, Jan Skvaril, Haoran Zhang, Yongtu Liang, Hailong Li
Summary: Integrating CO2 capture with biomass-fired combined heat and power (bio-CHP) plants is a promising method for achieving negative emissions. This study develops a reliable data-driven model based on the Transformer architecture to predict the flowrate and CO2 concentration of flue gas in real time. The model validation shows high prediction accuracy, and the potential impact of meteorological parameters on model accuracy is assessed. The results demonstrate that the Transformer model outperforms other models and using near-infrared spectral data as input features improves the prediction accuracy.