Article
Energy & Fuels
Lin Du, Yao-Yu Xiao, Zhi-Chao Jiang, Hongbo Zeng, Huazhou Li
Summary: This study investigates the feasibility of achieving in-depth profile control by striking a balance between the plugging efficiency and migration depths of dispersed particle gels (DPGs) in a given porous media. Different DPG suspensions with varying particle size distributions are sequentially injected into sandpacks. The optimal scheme comprises three DPG slugs with matching coefficients of 0.72, 0.78, and 0.46, respectively, which can migrate into deeper parts of the sandpacks and yield a high plugging efficiency. This study provides a new approach of achieving in-depth profile control by optimizing the injection sequence and particle size distribution of DPGs.
Article
Materials Science, Multidisciplinary
Y. Lei, T. Li, M. Y. Su, C. Li, H. Y. Wang, T. Cong, L. H. Dai
Summary: Using the SHPB with hat-shaped punch shear technique, the adiabatic shearing behavior in the web and the rim of high-speed train railway wheel steel was investigated. Different initial microstructure characteristics were observed in the web and rim specimens with different heat treatment. It was shown for the first time that pre-eutectoid ferrite deforms at first and pearlite interlamellar spacing influences the structural softening sequence during shear band evolution in the railway wheel steel, with shear bands more prone to emerge in the rim.
Article
Engineering, Chemical
Michal J. Marijnissen, Cezary Graczykowski, Jerzy Rojek
Summary: This paper presents a method for simulating the comminution process in high-speed rotor mills efficiently. By coupling CFD with DEM, collisional velocities and angles of particle groups passing through the machine can be obtained to determine the minimum working parameters of the machine for proper ore comminution.
MINERALS ENGINEERING
(2021)
Article
Engineering, Chemical
Yong Zeng, Biqi Mao, Anqi Li, Yanlong Han, Fuguo Jia
Summary: This study investigated the effects of particle shape and roller shaft rotation speed on the milling mechanism and found that the impact of aspect ratio on milling uniformity and intensity depends on the rotation speed.
Article
Energy & Fuels
Dao-Yi Zhu, Run-Tian Luo, Yang Liu, Jun-Hui Qin, Qi Zhao, Hong-Jun Zhang, Wan-Sheng Wang, Zi-Yuan Wang, Meng-En Zhu, Yi-Peng Wang, Peng-Bo Li
Summary: A re-crosslinkable dispersed particle gel (RDPG) system applied for conformance control in highly permeable channels of extremely high-temperature petroleum reservoirs was investigated. The RDPG suspension demonstrated stability and easy injection at room temperature, and it could pass through the pore throat by elastic deformation effect. It could undergo re-crosslinking reaction at high temperature to form a strong gel, showing promise for conformance improvement in extremely high-temperature reservoirs.
Article
Chemistry, Multidisciplinary
Yanlei Wang, Hongyu Yi, Yong Cui, Shijiang Li, Shengxiong Zhou, Chuanqi Yan
Summary: This study investigated the use of pre-shredding as a replacement for high-speed shearing in the preparation process of SBS-modified asphalt. Various parameters were studied, including particle size and mixing time of pre-shredded SBS modifier. The results showed that pre-shredding had a significant impact on the morphological changes and dispersion state of the SBS modifier, as well as the chemical composition and aging resistance of the modified asphalt. It was found that maintaining a mixing time between 30 and 60 minutes resulted in improved performance of the modified asphalt, while excessive mixing time weakened the mesh structure and decreased overall performance. The study also recommended specific particle sizes for the pre-shredded SBS modifier, which had different effects on the performance of the modified asphalt. Compared to the traditional preparation method, the pre-shredding process improved aging resistance, saved processing time, reduced energy consumption, and produced better-performing asphalt.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Chemical
Shicong Luo, Claus Erik Weinell, Soren Kiil
Summary: The purpose of this study is to develop a mathematical model for the dispersion of agglomerates in inorganic pigment concentrates. The population balance analysis includes three potential mechanisms, which are surface erosion, rupture, and re-agglomeration. Experimental data of transient agglomerate size distributions were measured to validate the model. The simulations show that surface erosion is the dominant mechanism in pigment dispersion.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Automation & Control Systems
Fabienne Delaunois, Victor Ioan Stanciu, Alexandre Megret, Mario Sinnaeve
Summary: The oxidation behavior and sliding wear resistance of semi-high-speed steel and high-speed steel were studied, showing that they can be effectively used in the roughing stand or the F1 finishing stand of hot rolling mills.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Polymer Science
Zizhao Wang, Zhixuan Zhu, Tianyu Jiang, Jinming Liu, Yunbo Dong, Yining Wu, Mingwei Zhao, Caili Dai, Lin Li
Summary: The mechanical strength of dispersed particle gels (DPGs) directly affects the performance of reservoir regulation. This study investigated the effect of reservoir conditions on the mechanical strength of DPGs and determined the desired range of mechanical strength for optimum reservoir regulation performance. It was found that DPG particles with higher Young's moduli exhibited better profile control and enhanced oil recovery abilities. However, only DPG particles within the modulus range of 0.19-0.762 kPa could achieve both adequate blockage and migration in reservoirs. Applying DPG particles with moduli within the range of 0.19-0.297 kPa would ensure optimum reservoir control performance considering material costs. The study also demonstrated the temperature and salt resistance of DPG particles, showing a positive impact of reservoir conditions on their regulation abilities. By adjusting the mechanical strength, the practical reservoir regulation performance of DPGs can be improved, providing theoretical guidance for their application in efficient oilfield development.
Article
Materials Science, Multidisciplinary
Qibing Liu, Farhad Saba, Genlian Fan, Zhanqiu Tan, Qiang Guo, Dingbang Xiong, Zhiqiang Li
Summary: A new high-speed shearing process based on shearing force-assisted compressing force has been developed to cut carbon nanotubes (CNTs) below 100 nm. This process achieves an optimal balance between CNTs length and structural integrity. Molecular dynamics simulation shows that shearing force fractures CNTs into segments along their axial direction and assists compressing force in cutting CNTs by reducing force and energy consumption.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Applied
Mengwei Wang, Zihao Yin, Mingyong Zeng
Summary: This study provides a scientific basis for the application of microalgae in food and the changes in food rheology containing microalgae.
FOOD HYDROCOLLOIDS
(2022)
Article
Chemistry, Applied
Lin Li, Jia-Nan Yan, Bin Lai, Ce Wang, Jin-Jian Sun, Hai-Tao Wu
Summary: Chia seed gum was extracted using high-speed shearing technology and purified via ethanol precipitation. The properties of crude chia seed gum (CCSG) and purified chia seed gum (PCSG) were evaluated and compared with twelve commercial polysaccharides. The results showed that PCSG had a higher sugar content, lower molecular weight, and looser surface morphology compared to CCSG. Both CCSG and PCSG exhibited pseudoplastic fluid behavior, but PCSG had higher viscosity and modulus values. PCSG showed similar rheological characteristics as xanthan gum and had better water-holding capacity than most commercial polysaccharides.
FOOD HYDROCOLLOIDS
(2023)
Article
Chemistry, Analytical
Qi Wang, Zhe Ding, Gary Wong, Jia Zhou, Antoine Riaud
Summary: Acoustic mixing of droplets is a promising method for high-speed and low reagent consumption biosensors. However, the speed is limited by the slow advection of analyte due to the formation of a hydrodynamic boundary layer. By using lower ultrasonic frequencies and generating Rayleigh streaming, the hydrodynamic boundary layer is eliminated, resulting in a three-fold speedup compared to Eckart streaming.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Xiaofei Hu, Jiongzhao Li, Zhe Wang, Xudong Qian, Chenqi Zhu, Xiaogang Peng
Summary: In this article, a new strategy for preparing precursors of inorganic nanocrystals is introduced. The strategy involves dispersing inorganic or element-containing organic molecules in hydrocarbon gel, which expands the range of potential precursors and simplifies the synthetic system.
Article
Chemistry, Multidisciplinary
Hao Zhang, Zhenyu He, Chaopeng Fu, Pan Pan, Yifeng Zhu, Meng Xu, Shengwei Deng, Guoqing Ying, Youqing Shen
Summary: This study used microfluidic channels to mimic vascular networks and hemodynamic shearing conditions, observed the fast dissociation of clinically relevant micelles under dynamic conditions, and found that micelle dissociation was associated with hemodynamic shearing and influenced by blood flow rate and channel geometry. Shear field on particles, as surrogates to red blood cells, significantly influenced micelle dissociation. The morphological evolution of micelles under shearing resulted in the disintegrity of the protective PEG shell, leading to the increased exposure of the hydrophobic core and destruction of the micellar structures.
Article
Energy & Fuels
Yifei Liu, Chenwei Zou, Daiyu Zhou, Hui Li, Mingwei Gao, Guang Zhao, Caili Dai
Article
Energy & Fuels
Guang Zhao, Chen Wang
Article
Chemistry, Physical
Yue Zhang, Caili Dai, Xuepeng Wu, Yining Wu, Yuyang Li, Yongping Huang, Haonan He, Chenglin Gu, Long He, Mingwei Zhao
JOURNAL OF MOLECULAR LIQUIDS
(2019)
Article
Energy & Fuels
Yuan Li, Rongjun Wang, Ruoyu Wang, Wei Liu, Caili Dai, Xue Yao, Mingwei Zhao, Yongpeng Sun, Guang Zhao, Yining Wu
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2019)
Article
Energy & Fuels
Qing You, Quanyi Wen, Jichao Fang, Min Guo, Qingsheng Zhang, Caili Dai
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2019)
Article
Chemistry, Applied
Mingwei Zhao, Zhibin Gao, Caili Dai, Xin Sun, Yue Zhang, Xiujie Yang, Yining Wu
JOURNAL OF SURFACTANTS AND DETERGENTS
(2019)
Article
Chemistry, Analytical
Yuyang Li, Caili Dai, Xinke Wang, Wenjiao Lv, Hongda Zhou, Guang Zhao, Lin Li, Yongpeng Sun, Yining Wu, Mingwei Zhao
SENSORS AND ACTUATORS B-CHEMICAL
(2019)
Article
Energy & Fuels
Jichao Fang, Guang Zhao, Mingwei Zhao, Caili Dai
Summary: The new channel flow control (CFC) agent can significantly improve the oil recovery of high-temperature and high-salinity fractured-vuggy carbonate reservoirs, suitable for reservoirs up to 180 degrees Celsius, can be expanded up to 3 times by adjusting the composition ratio to form a barrier that blocks the main flow channel.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2021)
Article
Chemistry, Physical
Foster Dodzi Gomado, Yanling Wang, Forson Kobina, Caili Dai, Augustus Owusu-Boadi
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2020)
Article
Energy & Fuels
Guang Zhao, Zhihu Yan, Feng Qian, Haonan Sun, Xia Lu, Haiming Fan
Proceedings Paper
Engineering, Petroleum
Hao Li, Caili Dai, Xuepeng Wu
PROCEEDINGS OF THE INTERNATIONAL FIELD EXPLORATION AND DEVELOPMENT CONFERENCE 2017
(2019)
Proceedings Paper
Engineering, Petroleum
Sisi Fang, Caili Dai, Xuepeng Wu
PROCEEDINGS OF THE INTERNATIONAL FIELD EXPLORATION AND DEVELOPMENT CONFERENCE 2017
(2019)
