Article
Materials Science, Multidisciplinary
Sandeep Rellegadla, Shikha Jain, Jitendra S. Sangwai, Meeta Lavania, Banwari Lal, Lisa Gieg, Aruliah Rajasekar, Achinta Bera, Akhil Agrawal
Summary: This study successfully altered the surface wettability by preparing VAG solution, which effectively enhanced the EOR potential.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Polymer Science
Agatha Densy dos Santos Francisco, Daniel Grasseschi, Regina Sandra Veiga Nascimento
Summary: The study synthesized TMC and TMC-C14 and evaluated their performance in altering rock wettability and promoting oil displacement through a series of experiments. The results showed that TMC performed better in changing wettability and promoting oil displacement.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Physical
Mahsheed Rayhani, Mohammad Simjoo, Mohammad Chahardowli
Summary: Lowering the ionic strength of brine can generate stable w/o emulsions with a separated water volume as low as 5% of the total initial water. Ion-tuned solutions, especially the presence of Mg2+ cations, can boost emulsion longevity. The presence of SO42- in the brine solution shows strong potential for rendering surface wettability and reducing emulsion longevity.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Energy & Fuels
Liu Xuefen, Kang Yili, Yan Lingling, Tian Jian, Li Jianfeng, You Lijun
Summary: This study investigates the effect of different surfactants on changing rock surface tension and interfacial tension, as well as their impact on enhanced oil recovery in tight oil reservoirs. The results show that fluoride FC-1 and GS surfactant have the potential to alter wettability and reduce interfacial tension. The study reveals that changing rock wettability is more favorable for oil recovery in tight sandstone oil reservoirs than reducing interfacial tension.
Article
Energy & Fuels
Pal O. Andersen, Sameer Ahmed
Summary: Naturally fractured reservoirs rely on capillary forces for oil recovery during water injection, with wettability alteration identified as a key mechanism for improved oil production. Limited research has been done on co-current spontaneous imbibition, leading to a modeling study on enhanced oil recovery by wettability alteration during co-current SI.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Chemistry, Physical
Xinru Li, Xiaohan Zhang, Yanming Zhang, Yubin Su, Yangming Hu, Hai Huang, Yang Liu, Maochang Liu
Summary: The synthesis of nanosized polystyrene microspheres with good uniformity, strong absorptivity, and controllable size has been reported. The nanofluid can effectively reduce interfacial tension and alter wettability, making it favorable for chemical enhanced oil recovery. The fluidic properties of the nanofluid were investigated through core flooding experiments and NMR tests, showing the potential for deep fluid diversion and oil displacement by regulating its behavior.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Energy & Fuels
Arash Baradari, Erfan Hosseini, Bahram Soltani, Naghi Jadidi
Summary: This study investigates the impact of ion concentration in seawater on the wettability of dolomite rock, with results showing that increasing sulfate concentration up to a certain level leads to increased water-wetness. Additionally, seawater without calcium ions was found to have the best effect on altering the wettability of dolomite rock and increasing oil recovery. The same trend was observed for seawater without magnesium ions.
PETROLEUM SCIENCE AND TECHNOLOGY
(2021)
Article
Energy & Fuels
Z. Zhang, Madhar Sahib Azad, J. J. Trivedi
Summary: This study addresses research gaps in understanding the dominant recovery mechanisms during surfactant flooding in unconventional, oil-wet reservoirs by investigating physico-chemical interactions and microfluidic studies using zwitterionic surfactant solutions. The observations show that significant IFT reduction and wettability alteration are both crucial for successful oil displacement in water-wet media during surfactant flooding in oil-wet formations.
Article
Chemistry, Physical
Amin Keykhosravi, Mozhdeh Bagheri Vanani, Amin Daryasafar, Chia Aghayari
Summary: The study evaluated the efficiency of various Nano-EOR scenarios and found that pre-soaking with silica nanofluids resulted in higher oil recovery rates. Silica nanoparticles were found to significantly impact wettability and permeability in carbonate rock.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Energy & Fuels
Yihuai Zhang, Qingyang Lin, Ali Q. Raeini, Yutaka Onaka, Hiroki Iwama, Katsumo Takabayashi, Martin J. Blunt, Branko Bijeljic
Summary: Researchers have developed an in situ micro-CT imaging technique to investigate asphaltene deposition during multiphase flow. Experimental observations and analysis show that asphaltene precipitation can significantly reduce rock permeability and alter wettability, which is important for reservoir characterization and remediation.
Article
Energy & Fuels
Fabio Bordeaux Rego, Esmail Eltahan, Kamy Sepehrnoori
Summary: This study investigates the potential of increasing oil recovery in tight and shale formations by modifying fracturing fluid compositions. It is found that reducing salinity can decrease oil adhesion on rock surfaces, leading to improved oil displacement.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Saad F. F. Alkafeef, Salem S. S. Al-Marri
Summary: Resin molecules are crucial for the stability of colloidal asphaltene particles in petroleum reservoirs. Changes in thermodynamic parameters can cause asphaltene precipitation, leading to problems such as decreased permeability and severe plugging in oil production facilities. Developing synthetic resins with enhanced chemical potential can increase asphaltene stability, but predicting compatibility is challenging. This study investigates the stability of asphaltene and oil recovery using oil pre-fractionation and solvent deasphalting techniques, and finds that resin concentration and aromatic power solvency can enhance stability and permeability without formation damage.
Article
Energy & Fuels
Baghir A. Suleimanov, Hakim F. Abbasov, Rayyat H. Ismayilov
Summary: This paper presents the results of studying the displacement of residual oil using nanofluids, which can improve oil recovery by altering the wettability of the rock pores, reducing interfacial tension, decreasing oil viscosity, and increasing disjoining pressure.
PETROLEUM SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Petroleum
M. R. Fassihi, E. Turek, M. Matt Honarpour, D. Peck, R. Fyfe
Summary: This study aims to evaluate the impact of asphaltene on permeability using novel laboratory tests. The relationship between asphaltene deposition and permeability reduction was established through experiments.
Article
Energy & Fuels
Subhash Ayirala, Abdulkareem AlSofi, Zuhair AlYousef, Jinxun Wang, Moataz Abu Alsaud, Ali AlYousef
Summary: By synergizing the composition of injection water through SmartWater technology, enhanced oil recovery (EOR) methods can be optimized to achieve higher oil recoveries and reduce the volume requirements of chemicals and gas. This study demonstrates the significant benefits of different SmartWater-based synergistic EOR technologies, which can have practical implications for more efficient and economical EOR projects in the field.
Article
Energy & Fuels
Qiang Sun, Bo Chen, Yangyang Li, Gaoqiang Yuan, Zhen Xu, Xuqiang Guo, Xingxun Li, Wenjie Lan, Lanying Yang
Article
Engineering, Chemical
Qiang Sun, Mei Du, Xingxun Li, Xuqiang Guo, Aixian Liu, Guangjin Chen, Lanying Yang
CHEMICAL ENGINEERING SCIENCE
(2019)
Article
Energy & Fuels
Xingxun Li, Pengcheng Chi, Xuqiang Guo, Qiang Sun
Article
Engineering, Chemical
Wenjie Lan, Zhihui Wang, Miao Wang, Dan Liu, Xuqiang Guo, Qiang Sun, Xingxun Li, Shaowei Li
CHEMICAL ENGINEERING SCIENCE
(2019)
Article
Chemistry, Physical
Chunling Wu, Yang Luo, Kai Zhao, Xiaobing Yu, Xian Zhang, Xuqiang Guo
Article
Engineering, Chemical
Qiang Sun, Meiyu Jiang, Wei Liu, Xingxun Li, Xuqiang Guo, Lanying Yang
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2020)
Article
Energy & Fuels
Yiwei Wang, Bin Yang, Zengqi Liu, Zhiqi Liu, Qiang Sun, Aixian Liu, Xingxun Li, Wenjie Lan, Lanying Yang, Xuqiang Guo
Article
Engineering, Chemical
Xingxun Li, Cunning Wang, Shuang Liang, Xuqiang Guo, Qiang Sun
CHEMICAL ENGINEERING SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Yang Li, Bing Lei, Xuqiang Guo
Summary: The study evaluated the influence of phosphoric acid and a tannic converter formula on adhesion strength of a coating system using epoxy coating. It was found that the treatment enhanced adhesion strength between rust and epoxy coating, attributed to the formation of a micro-cracked and compact conversion layer. Both pH and phosphate radical were important factors in improving adhesion strength.
Article
Chemistry, Physical
Yang Li, Hailong Shang, Bingyang Ma, Xuqiang Guo, Rongbin Li, Geyang Li
Summary: By studying the wetting behavior of molten aluminum on two samples under different conditions, it was found that the addition of an Al film can enhance the wettability and interface strength of Al/Al2O3.
Article
Energy & Fuels
Yiwei Wang, Lin Wang, Zhen Hu, Youli Li, Qiang Sun, Aixian Liu, Lanying Yang, Jing Gong, Xuqiang Guo
Summary: Research shows that sodium lignin sulfonate (SLS) has little negative impact on hydrate formation and can actually increase the conversion rate of water into hydrate. The study also reveals the effects of SLS on different stages of hydrate formation for the first time, establishing a model to predict the influence of pressure on hydrate formation.
Article
Energy & Fuels
Xu Jiang, Ming Liu, Xingxun Li, Li Wang, Shuang Liang, Xuqiang Guo
Summary: This study investigated the impacts of Span 80 surfactant and hydrophobic SiO2 nanoparticles on the crude oil-water interfacial characteristics. It was found that the presence of nanoparticles led to higher crude oil-water interfacial tensions, especially at low surfactant concentrations. The effect of nanoparticle concentration was less significant at high surfactant concentrations.
Article
Polymer Science
Xiao Yang, Naihao Chen, Shengbo Ge, Yequan Sheng, Kun Yang, Pengmusen Lin, Xuqiang Guo, Su Shiung Lam, Hui Ming, Libo Zhang
Summary: This paper studied the pyrolysis behavior of bio-oil from cotton stalks under low-temperature hydro-thermal conversion and investigated the interaction between different components. The results showed that cellulose and hemicellulose inhibit each other, while the interaction between cellulose and lignin promotes the formation of oligomers.
Article
Chemistry, Physical
Chunling Wu, Linge Ma, Yufei Zhu, Xuqiang Guo, Yongli Wu, Zhen Wu, Xian Zhang, Lihua Hou
Summary: This paper investigates the high-temperature reaction mechanism of Mo compounds in direct coal liquefaction residue (DCLR) and finds that a lower heating rate can promote the oxidation of the Mo compound and the sublimation of molybdenum trioxide. Additionally, the oxides of aluminum, calcium, and iron in DCLR inhibit the oxidative pyrolysis efficiency of the DCLR-MoS2 system.
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.