Article
Engineering, Chemical
Heng Li, Daoyin Liu, Jiliang Ma, Xiaoping Chen
Summary: A CFD-DEM coupled with a cohesive contact model was developed to simulate a Wurster fluidized bed with heat and mass transfer. The particle temperature distribution showed two peaks, the circulation pattern significantly affected particle drying, and the liquid injection rate influenced particle circulation stability and fluidization condition.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Engineering, Chemical
S. Madlmeir, T. Forgber, M. Trogrlic, D. Jajcevic, A. Kape, L. Contreras, A. Carmody, P. Liu, C. Davies, A. Sarkar, J. G. Khinast
Summary: This study investigates the drying and losses of spray droplets during the coating process of medicines. By using simulation and experiments, the researchers propose solutions to reduce coating losses and improve coating yield, leading to significant time savings.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Engineering, Electrical & Electronic
Cody Park, Shah M. Chowdhury, Yaswanth Pottimurthy, Qussai M. Marashdeh, Andrew Tong, Fernando L. Teixeira, Liang-Shih Fan
Summary: In this study, a method based on electrical capacitance volume tomography (ECVT) is developed to reconstruct velocity profile maps in fluidized bed systems. The method takes advantage of the sensitivity distribution gradient of the ECVT sensor to avoid the use of image cross correlation techniques. Experimental data collected from both bubbling and slugging fluidized beds are used to validate the technique, and good agreement is found when comparing the velocity maps obtained with established methods and empirical correlations. The study demonstrates the power of ECVT as a measurement tool for gas-solid fluidized beds.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Article
Engineering, Chemical
Chao Wang, Kexin Zhang, Qi Guo, Jiamin Ye
Summary: The measurement of three-phase holdup distributions in gas-liquid-solid fluidized beds is of great importance for the characterization, design, and optimization of the beds. This study proposes an image reconstruction method for electrical resistance tomography and electromagnetic tomography based on tunnel magnetoresistance (ERT/TMR-EMT) dual-modality system to simultaneously measure the three-phase holdup distribution. The distributions of equivalent conductivity and equivalent permeability are reconstructed using the D-bar algorithm based on ERT and TMR-EMT, respectively, and then the three-phase holdup distribution is reconstructed using equivalent media theory. The results demonstrate that the holdup variations of gas, liquid, and solid are consistent with the phantom sets, and the measurement accurately reflects the variations in experimental states in the fluidized bed.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Chemical
Chao Wang, Kexin Zhang, Qi Guo, Jiamin Ye
Summary: The measurement of three-phase holdup distributions in the gas-liquid-solid fluidized bed is important for the characterization, design, and optimization of the fluidized bed. This study proposes an image reconstruction method based on electrical resistance tomography and electromagnetic tomography to simultaneously measure the three-phase holdup distribution. The results show that the reconstructed image and three-phase average holdup accurately reflect the variations in gas, liquid, and solid content, providing valuable information for the fluidized bed experiments.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Zhenjiang Zhao, Ling Zhou, Ling Bai, Wanning Lv, Ramesh K. Agarwal
Summary: The reliability of numerical simulations was verified by conducting high-speed photographic experiments to investigate the evolution process of bubbles and the variation of bed height. The gas-solid flow characteristics of bubbling fluidized beds with different particle diameters and inlet flow rates were systematically studied. The results provide theoretical guidance for particle flow characteristics in biomass fluidized beds.
Article
Engineering, Chemical
Hao Zhang, Wanbing Qiao, Xizhong An, Xinglian Ye, Jiang Chen
Summary: This study investigates the fluidization characteristics of a gas-solid fluidized bed reactor containing ternary particles using coupled computational fluid dynamics and discrete element method simulations. The results show that increasing the superficial gas velocity can enhance the overall mixing degree and mitigate the discrepancy caused by particle shape.
Article
Energy & Fuels
Dali Kong, Shuai Wang, Kun Luo, Jiahui Yu, Jianren Fan
Summary: The methanation process in a bubbling fluidized bed (BFB) reactor is studied using computational fluid dynamics-discrete element method (CFD-DEM) with thermochemical sub-models. A novel algorithm is developed for bubble identification and statistics. The effects of key operating parameters on bubble behaviors are quantified and the underlying mechanism of mesoscale bubble behaviors is elucidated. The results show that the bubble dynamics can be well captured by the algorithm and the interphase heat and mass transfer can be enhanced by adjusting the operating parameters.
Article
Engineering, Environmental
Qiuya Tu, Zhan Luo, Haigang Wang
Summary: This research investigated the gas-solid flow characteristics in a dual fluidized bed (DFB) system through computational fluid dynamics simulation and validated the feasibility of the Wen-Yu/Ergun drag model for predicting gas-solid flow dynamics. The study identified four flow zones in the bubbling fluidized bed (BFB) and analyzed the start-up characteristics among different components based on simulation results.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Xibo Liu, Xuchen Fan, Yuemin Zhao, Chenlong Duan, Chenyang Zhou
Summary: Fluidization technology is widely used in industrial processes, and the prediction of separation density is crucial for discharging large particles. Experimental and theoretical analysis show that gas velocity significantly affects the volume of the defluidized hood, while bed height has a smaller impact. A modified correlation for apparent separation density was developed for large particles, showing good agreement with data from literature and experiments.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Venkata Charan Reddy Eppala, Mona Mary Varghese, Teja Reddy Vakamalla
Summary: In this study, the effect of non-spherical particle shape on the hydrodynamics of a rectangular gas-solid fluidized bed is numerically investigated using a coupled Computational Fluid Dynamics - Discrete Element Method approach. The accuracy of the model is validated by comparing the predicted results with experimental data. The results show a strong relationship between particle sphericity and fluidization behavior.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Engineering, Chemical
M. J. A. de Munck, E. A. J. F. Peters, J. A. M. Kuipers
Summary: Computational Fluid Dynamics - Discrete Element Method (CFD-DEM) is widely used for heat transfer modeling in gas-solid fluidized beds. This study introduces a technique of coarse-grained CFD-DEM to overcome computational limitations and simulate larger fluidized beds. A scaling law commonly used for coarse-graining hydrodynamics is generalized to gas-solid heat transfer. The approach is successfully tested for different gas velocities, providing accurate predictions of particle temperatures and Nusselt numbers.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Engineering, Chemical
Zhi Han, Yingjuan Shao, Wenqi Zhong
Summary: A novel CFD-DEM particle attrition model is developed to investigate the attrition mechanism of particles in fluidized beds. The results show that the attrition process can be divided into unstable attrition stage and stable attrition stage, with the former further divided into high-speed attrition phase and low-speed attrition phase. Wear and fragmentation increase with increasing height-diameter ratio and superficial gas velocity. The wear ratio decreases with increasing particle size, while the fragmentation ratio first decreases and then increases. Particle attrition mechanism also exhibits spatial non-uniformity.
Article
Engineering, Chemical
M. J. A. de Munck, J. B. van Gelder, E. A. J. F. Peters, J. A. M. Kuipers
Summary: Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) is a numerical tool used for detailed fluidized bed studies. To overcome its computational expense, coarse-graining techniques have been developed. In this study, we compared the effectiveness of different coarse-graining scaling laws in characterizing the original system. We also demonstrated the usefulness of a continuous two-way smoothing function in achieving grid-independent solutions in CFD-DEM simulations.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Engineering, Environmental
Yaxiong Yu, Feng Lu, Haolong Bai, Fei Wei, Chenxi Zhang
Summary: This study investigates the influence of adding fines on heat transfer performance in fluidized beds through experiments, simulations, and theoretical analysis. The results show that adding fines enhances the heat transfer performance, with the bed-wall heat transfer coefficient presenting a volcano-shaped curve. Simulations and theoretical analysis reveal that improved particle dispersion due to fines addition is responsible for this phenomenon. The theoretical analysis further uncovers that fines addition creates more free-space for particle movement, thereby improving particle dispersion and enhancing heat transfer in fluidized beds.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Zining Wang, Xiaolu Li, Tengfei Bi, Duan Li, Lijun Xu
Summary: A compact lab-built LiDAR is designed and constructed, featuring a programmable-scanning-pattern image-space scanner and a Gauss-Newton (GN) iteration-based in situ ranging system. The angular resolution of the lab-built LiDAR is evaluated using a trapezoid-fitting method, which shows satisfactory performance when compared with a commercial LiDAR. Experimental results demonstrate that the lab-built LiDAR achieves high ranging accuracy, small angular error, and fine angular resolution. The proposed LiDAR and evaluation method have potential applications in hazard detection and avoidance in aerospace.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Engineering, Electrical & Electronic
Xin Gao, Zhang Cao, Jinting Wen, Lijun Xu, Wuqiang Yang
Summary: Laser absorption spectroscopy (LAS) tomography is an effective method for combustion diagnosis, providing simultaneous imaging of temperature and gas molar concentration. This study introduces radial basis functions (RBFs) to simplify continuous distributions in the region of interest (ROI), reducing the number of unknowns in image reconstruction. The proposed method, coupled with the simultaneous algebraic reconstruction technique (SART), achieves superior imaging quality compared to the classical SART method, with a smaller temperature error and high spatial resolution. The robustness and applicability of the method are verified through experiments in dynamic flames.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Engineering, Electrical & Electronic
Pu Huang, Xiaofei Huang, Hang Pu, Lijun Xu, Yuedong Xie
Summary: This article investigates a modified analytical solution for measuring the conductivity and side length of square metallic plates with finite dimensions using the Dodd and Deeds model. Experimental results show that the method has an average error of only 2.3% for conductivity measurement and 0.9% for side length measurement.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Multidisciplinary
Weiqing Li, Zhang Cao, Hongyu Zhang, Wanpeng Zhang, Lijun Xu
Summary: A flexible frame rate correlated imaging system was proposed and fabricated for temperature image acquisition. Real-time temperature images were reconstructed on chip at a frame rate of 10 Hz and higher rates up to 1280 frames per second were achieved with resolution sacrifice. The compressive sensing method enabled the flexible frame rate for dynamic temperature images. Reconstructed temperature distributions of an incandescent filament agreed well with those from a commercial CCD camera in the range of 1500 K to 2500 K. Furthermore, the proposed system captured the excitation frequency of an acoustically excited flame by varying the frame rate.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Xu Bai, Jiangtao Sun, Kangqi Liu, Xiaolin Li, Lijun Xu
Summary: This article presents a thorough analysis of switching noise in an EIT system and proposes a comprehensive noise model that takes into account the impacts of switching noise, frame rate, and bandwidth. Simulation and experimental results demonstrate that the proposed model can guide the improvement of the comprehensive performance of an EIT system for clinical applications. The EIT system can achieve high average SNR values of over 94 dB and 90 dB with different frame rates and bandwidths.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Chemical
Hanqiao Che, Haigang Wang, Lijun Xu, Duan Li
Summary: This study introduces a novel CFD-DEM model for spouted bed drying that incorporates intraparticle heat and mass diffusion. The model combines the CFD-DEM governing equations with two one-dimensional intraparticle heat and mass diffusion equations. Benchmark cases using a spouted bed are presented to demonstrate the feasibility of the proposed model. The results indicate that the CFD-DEM model effectively reproduces the rational heat and mass transfer laws of the spouted bed particle drying process characterized by an overall decline in transfer rates and provides valuable insights into the temperature and moisture distributions within the particles. The proposed model exhibits great potential for extension to real-world industrial applications, encompassing complex heat and mass diffusion phenomena as well as coupling characteristics.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Multidisciplinary
Chang Liu, Hugh McCann, Lijun Xu
Summary: Chemical species tomography (CST) has been widely used for multi-dimensional measurement of gaseous flow fields. CST offers unique capability for imaging multiple thermochemical parameters with high sensitivity and adaptability to industrial processes. This perspective discusses recent advances in CST instruments, highlights the challenges for improving temporal and spatial resolutions, and considers potential developments for next-generation CST instrumentation.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Chemical
Hanqiao Che, Dominik Werner, Jonathan Seville, Tzany Kokalova Wheldon, Kit Windows-Yule
Summary: Computational Fluid Dynamics coupled with Discrete Element Method (CFD-DEM) is a commonly used numerical method for gas-solid flow modeling. Coarse-graining (CG) approaches can reduce the number of particles while maintaining system dynamics. This paper evaluates three typical CG methods for simulating a bubbling fluidized bed and finds that the CG simulation fails when the size ratio between the chamber and particles decreases to approximately 20. It also shows that the specific CG approach for interparticle contact parameters does not substantially affect the simulation results across a wide range of CG factors.
Article
Engineering, Electrical & Electronic
Pu Huang, Zhiying Li, Jun Long, Lijun Xu, Yuedong Xie
Summary: In this article, a new feature, conductivity point of intersection (CPI), is proposed for noncoaxial T-R sensor in pulsed eddy current (PEC) testing. The results of experiments indicate that the thickness of the sample and lift-off of sensor can be accurately inverted based on the modified Newton-Raphson method.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Engineering, Electrical & Electronic
Peng Suo, Jiangtao Sun, Xiaokai Zhang, Xiaolin Li, Shijie Sun, Lijun Xu
Summary: This article presents an adaptive group-based sparse representation scheme for image reconstruction in electrical capacitance tomography. The proposed method accurately recovers the shape and location of abnormities by exploiting local self-similarity and the sparsity of the image in the form of a group. It achieves more sparsity and less computation by using sparse coefficients and representation matrices obtained via adaptive self-learning. The method shows potential in fulfilling high requirements for temporal and spatial resolutions in dynamic process imaging.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Engineering, Electrical & Electronic
Yudong Guo, Lijun Xu, Hongyao Li, Hongyu Zhang, Zhang Cao
Summary: This study introduces a planar laser-induced fluorescence (PLIF) technique that can be used to image the temperature and concentration distribution inside flames. The proposed method utilizes laser absorption spectroscopy (LAS) tomography to provide initial images of gas temperature, which are then used to update the fluorescence image iteratively. The results of numerical simulations and experiments demonstrate the effectiveness of this method, with relative errors of temperature and concentration within acceptable ranges.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Engineering, Electrical & Electronic
Fanghao Lu, Lijun Xu, Yigong Wu, Zhang Cao
Summary: A novel downsampling scheme was proposed to directly extract a precise and bias-immune absorption spectrum for dynamic gas temperatures. Multiple direct absorption profiles were generated by downsampling the absorbed wavelength-modulated laser intensity at equal phases in each modulation cycle. These profiles were employed to remove intensity biases from thermal radiations and obtain an entire absorption spectrum. Experimental results showed that the proposed method achieved higher precision and noise reduction compared to direct absorption spectroscopy and wavelength modulation spectroscopy methods. It also successfully evaluated the temporal variations of an acoustically excited flame.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Engineering, Electrical & Electronic
Shuang Qiu, Zhang Cao, Jinting Wen, Xiaoqian Zhang, Lijun Xu
Summary: A discrete tomographic imaging method is proposed for reconstructing temperature and gas concentration distributions using tunable diode laser absorption spectroscopy. The method discretizes the continuously distributed temperature and gas concentration into finite sets and approximates the distributions using value discretization. A linear matrix equation is used to solve for temperature and concentration values, and projections along laser paths are determined from measured absorption spectra. Numerical simulations and experiments demonstrate the effectiveness of the proposed method in obtaining accurate images with improved noise immunity.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Engineering, Electrical & Electronic
Jiangtao Sun, Xiaolin Li, Xu Bai, Shijie Sun, Lijun Xu
Summary: This article presents the measurement of transient flash evaporation flow in liquefied gas propulsion (LGP) using a dual-plane electrical capacitance tomography (ECT) sensor. The study introduces a method for more accurate liquid holdup measurement, an adaptive cross correlation algorithm for stable velocity measurement, and compensation methods to account for temperature and pressure changes. Simulations and experiments validated the effectiveness of the proposed methods in deriving the mass flow rate of the two-phase flow. The research has important implications for online control of LGP and estimating the remaining life of small spacecrafts.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Engineering, Electrical & Electronic
Jiangtao Sun, Xu Bai, Kangqi Liu, Jinzhao Wei, Peng Suo, Lijun Xu
Summary: This article proposes a method for continuously monitoring bladder volume using 3-D electrical impedance tomography (EIT). The method improves the accuracy of volume estimation by incorporating prior knowledge and improving image quality.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Engineering, Environmental
Xinping Zhang, Yuxin Guo, Xiaoyang Liu, Shun-Yu Wu, Ya-Xuan Zhu, Shao-Zhe Wang, Qiu-Yi Duan, Ke-Fei Xu, Zi-Heng Li, Xiao-Yu Zhu, Guang-Yu Pan, Fu-Gen Wu
Summary: This study develops a nanotrigger HCFT for simultaneous photodynamic therapy and light-triggered ferroptosis therapy. The nanotrigger can relieve tumor hypoxia, induce enhanced photodynamic reaction, and facilitate the continuation of Fenton reaction, ultimately leading to lethal ferroptosis in tumor cells.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Olumide Bolarinwa Ayodele, Toyin Daniel Shittu, Olayinka S. Togunwa, Dan Yu, Zhen-Yu Tian
Summary: This study focused on the semihydrogenation of acetylene in an ethylene-rich stream using two alloyed Pt catalysts PtCu and PtCo. The PtCu catalyst showed higher activity and ethylene yield compared to PtCo due to its higher unoccupied Pt d-orbital density. This indicates that alloying Pt with Cu is more promising for industrial relevant SHA catalyst.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Guowei Chen, Wen-Cheng Chen, Yaozu Su, Ruicheng Wang, Jia-Ming Jin, Hui Liang, Bingxue Tan, Dehua Hu, Shaomin Ji, Hao-Li Zhang, Yanping Huo, Yuguang Ma
Summary: This study proposes an intramolecular dual-locking design for organic luminescent materials, achieving high luminescence efficiency and performance for deep-blue organic light-emitting diodes. The material also exhibits unique mechanochromic luminescence behavior and strong fatigue resistance.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Joren van Stee, Gregory Hermans, Jinu Joseph John, Koen Binnemans, Tom Van Gerven
Summary: This work presents a continuous solvent extraction method for the separation of cobalt and nickel in a millifluidic system using Cyphos IL 101 (C101) as the extractant. The optimal conditions for extraction performance and solvent properties were determined by investigating the effects of channel length, flow rate, and temperature. The performance of a developed manifold structure was compared to a single-channel system, and excellent separation results were achieved. The continuous separation process using the manifold structure resulted in high purity cobalt and nickel products.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Yan Xu, Jingai Jiang, Xinyi Lv, Hui Li, Dongliang Yang, Wenjun Wang, Yanling Hu, Longcai Liu, Xiaochen Dong, Yu Cai
Summary: A programmed gas release nanoparticle was developed to address the challenges in treating diabetic infected wounds. It effectively removes drug-resistant pathogens and remodels the wound microenvironment using NO and H2S. The nanoparticle can eliminate bacteria and promote wound healing through antibacterial and anti-inflammatory effects.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Tong Xia, Zhilin Xi, Lianquan Suo, Chen Wang
Summary: This study investigated a highly efficient coal dust suppressant with low initial viscosity and high adhesion-solidification properties. The results demonstrated that the dust suppressant formed a network of multiple hydrogen bonding cross-linking and achieved effective adhesion and solidification of coal dust through various chemical reactions.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jinzhi Cai, Zhenshan Li
Summary: A density functional theory-based rate equation was developed to predict the gas-solid reaction kinetics of CaO carbonation with CO2 in calcium looping. The negative activation energy of CaO carbonation close to equilibrium was accurately predicted through experimental validation.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jianxiong Chen, Fuhao Ren, Ningning Yin, Jie Mao
Summary: This study presents an economically efficient and easily implementable surface modification approach to enhance the high-temperature electrical insulation and energy storage performance of polymer dielectrics. The self-assembly of high-insulation-performance boron nitride nanosheets (BNNS) on the film surface through electrostatic interactions effectively impedes charge injection from electrodes while promoting charge dissipation and heat transfer.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Zijian Li, Zhaohui Yang, Shao Wang, Hongxia Luo, Zhimin Xue, Zhenghui Liu, Tiancheng Mu
Summary: This study reports a strategy for upgrading polyester plastics into value-added chemicals using electrocatalytic methods. By inducing the targeted transfer of *OH species, polyethylene terephthalate was successfully upgraded into potassium diformate with high purity. This work not only develops an excellent electrocatalyst, but also provides guidance for the design of medium entropy metal oxides.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Navneet Singh Shekhawat, Surendra Kumar Patra, Ashok Kumar Patra, Bamaprasad Bag
Summary: This study primarily focuses on developing a sulphur dyeing process at room temperature using bacterial Lysate, which is environmentally friendly, energy and cost effective, and sustainable. The process shows promising improvements in dye uptake and fastness properties.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Dengjia Shen, Hongyang Ma, Madani Khan, Benjamin S. Hsiao
Summary: This study developed cationic PVC nanofibrous membranes with high filtration and adsorption capability for the removal of bacteria and hexavalent chromium ions from wastewater. The membranes demonstrated remarkable performance in terms of filtration efficiency and maximum adsorption capacity. Additionally, modified nanofibrous membranes were produced using recycled materials and showed excellent retention rates in dynamic adsorption processes.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Xiaoyan Wang, Zhikun Wang, Ben Jia, Chunling Li, Shuangqing Sun, Songqing Hu
Summary: Inspired by photosystem II, self-supported Fe-doped NiCoP nanowire arrays modified with carboxylate were constructed to boost industrial-level overall water splitting by employing the concerted proton-coupled electron transfer mechanism. The introduction of Fe and carboxyl ligand led to improved catalytic activity for HER and OER, and NCFCP@NF exhibited long-term durability for overall water splitting.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Pengyao Yu, Ge Yang, Yongming Chai, Lubomira Tosheva, Chunzheng Wang, Heqing Jiang, Chenguang Liu, Hailing Guo
Summary: Thin LTA zeolite membranes were prepared through secondary growth of nano LTA seeds in a highly reactive gel, resulting in membranes with superior permeability and selectivity in gas separation applications.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Baiqin Zhou, Huiping Li, Ziyu Wang, Hui Huang, Yujun Wang, Ruichun Yang, Ranran Huo, Xiaoyan Xu, Ting Zhou, Xiaochen Dong
Summary: The use of machine learning to predict the performance of specific adsorbents in phosphate adsorption shows great promise in saving time and revealing underlying mechanisms. However, the small size of the dataset and insufficient detailed information limits the model training process and the accuracy of results. To address this, the study employs a fuzzing strategy that replaces detailed numeric information with descriptive text messages on the physiochemical properties of adsorbents. This strategy allows the recovery of discarded samples with limited information, leading to accurate prediction of adsorption amount, capacity, and kinetics. The study also finds that phosphate uptake by adsorbents is generally through physisorption, with some involvement of chemisorption. The framework established in this study provides a practical approach for quickly predicting phosphate adsorption performance in urgent scenarios, using easily accessible information.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Paula Alejandra Lamprea Pineda, Joren Bruneel, Kristof Demeestere, Lisa Deraedt, Tex Goetschalckx, Herman Van Langenhove, Christophe Walgraeve
Summary: This study evaluates the use of four esterified fatty acids and three vegetable oils as absorption liquids for hydrophobic VOCs. The experimental results show that isopropyl myristate is the most efficient liquid for absorbing the target VOCs.
CHEMICAL ENGINEERING JOURNAL
(2024)