Article
Engineering, Environmental
Mojtaba Malayeri, Fariborz Haghighat, Chang-Seo Lee
Summary: This study focused on the kinetic modeling of photocatalytic degradation of MEK using TiO2 coated on silica fiber felts and compared two mathematical models to simulate the PCO reactor performance. Experimental results showed that a portion of MEK mineralized to CO2 and converted to by-products, with aldehyde compounds identified as the main by-products. The study also revealed that the unimolecular L-H model considering inhibitive effects provided the best fit for the kinetic rate expressions.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Hui-Long Wei, Xi-Bao Zhang, Zheng-Hong Luo
Summary: In this study, the synthesis of 5-oxohexanenitrile through the addition of acetone to acrylonitrile was investigated using a microreactor. A semiempirical kinetic model was developed and validated, and its effects on reaction conditions and reactor parameters were studied for the design and optimization of industrial tubular reactors.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Environmental Sciences
Ricardo E. Palma-Goyes, Fabiola S. Sosa-Rodriguez, Fernando F. Rivera, Jorge Vazquez-Arenas
Summary: This study proposes a continuous physicochemical model for the active chlorine production used to degrade recalcitrant sulfamethoxazole in an electrochemical flow reactor. Experimental validation shows that increasing the adsorption of electro-generated chlorine species on the anode surface can significantly enhance the oxidation potential of the system.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
S. A. Chizhik, M. P. Popov, I. Kovalev, S. F. Bychkov, A. P. Nemudry
Summary: The kinetic parameters of a reaction between a nonstoichiometric oxide and molecular oxygen were determined using two independent methods, steady-state oxygen permeability and transient kinetics. Mathematical models were used to analyze the results, taking into account the inhomogeneity of conditions and gas flows. The results showed a quantitative agreement between the two methods, considering the dependence of the reaction rate constant on oxide stoichiometry.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Multidisciplinary Sciences
Arvaidas Galdikas, Muhammad Usman, Matas Galdikas
Summary: This paper proposes a mathematical model for the diffusion of powder oxide catalysts in the process of temperature programmed oxygen isotopic exchange, and fits model parameters quantitatively using experimental data. It analyzes the shapes of kinetic curves during the exchange process and considers the influence of various process parameters on the reaction.
Article
Energy & Fuels
Can Wang, Xin Zhong, Haifeng Liu, Tengda Song, Hu Wang, Bin Yang, Mingfa Yao
Summary: Oxygen-enriched combustion can improve thermal efficiency and reduce emissions in internal combustion engines. The effect of oxygen concentration on n-heptane oxidation was studied experimentally, showing that increasing oxygen concentration weakens the NTC effect, enhances the reaction system's activity, and strengthens the generation and consumption of CO.
Article
Chemistry, Physical
Pieter Janssens, Jeroen Poissonnier, Anoop Chakkingal, Ren Bos, Joris W. Thybaut
Summary: Developing new catalysts with improved performance is crucial for a sustainable chemical industry. Steady-State Isotopic Transient Kinetic Analysis (SSITKA) is a powerful experimental technique that provides detailed knowledge of catalyst-species interactions. By combining SSITKA with (micro)kinetic modeling, structure-activity relationships can be advanced and insights into complex reaction pathways can be obtained. This mini review summarizes the developments in these fields over the last decade.
CATALYSIS COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Alessandro Stagni, Suphaporn Arunthanayothin, Mathilde Dehue, Olivier Herbinet, Frederique Battin-Leclerc, Pierre Brequigny, Christine Mounaim-Rousselle, Tiziano Faravelli
Summary: Understanding the chemistry of ammonia/hydrogen mixtures oxidation is vital for their versatile application in propulsion systems and power generation. This study investigated the oxidation of such blends under low- and intermediate-temperature conditions through experimental and kinetic-modeling approaches. The experimental campaign measured the mole fraction of fuels, oxidizer, and final products, while a comprehensive kinetic model was used to interpret the results and expand the analysis to literature data. The role of HO2 in regulating fuel conversion and autoignition at low temperature was confirmed, and the nitrogen fate was primarily controlled by NHx + NO propagation and termination channels.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Civil
Chengyu Xie, Wei Xiao, Mi Zhang, Shoudong Liu, Yufei Qian, Hao Zhu, Zhen Zhang, Qiang Liu, Yongbo Hu, Jingyuan Wang, Xuhui Lee
Summary: The study investigates kinetic fractionation of evaporation in small water bodies, showing the significant role of convective turbulence in this process. Replacement of the default ε(k) value greatly improves the LEL model performance. The data does not support the hypothesis that ε(k) decreases with increasing lake size, with an overall mean ε(k) of 9.7‰ for 180 and 8.5‰ for 2H.
JOURNAL OF HYDROLOGY
(2021)
Article
Energy & Fuels
Sina Maghsoudy, Mohammad Rahimi, Asghar Molaei Dehkordi
Summary: The appropriate ion exchange membrane is crucial for optimal performance in vanadium redox flow batteries. This study examines the effects of different commercial cation and anion exchange membranes, as well as their combinations, on system performance. Factors such as membrane type, thickness, electrical conductivity, and vanadium species transfer are carefully examined. A developed model is used to investigate the influences of flow rate and electrolyte concentration. The results show that FAP 450 provides the highest capacity retention, while Nafion 212 exhibits the highest power density among the membranes tested.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Hanyu Chen, Xi Wang, Yingwei Zhang, Yaoqi Hou
Summary: In this study, the pyrolysis process of n-pentane was investigated using advanced techniques, updating the kinetic model and identifying key reactions controlling the pyrolysis process. Results showed that at atmospheric pressure, alkenes were produced with higher concentrations.
COMBUSTION AND FLAME
(2021)
Review
Chemistry, Physical
Magdalena Jablonska
Summary: This review provides an overview of the application of steady-state isotopic transient kinetic analysis in the selective catalytic reduction of NOx, focusing on identifying active species in different SCR reactions. It discusses the formation rates of adsorbed species and their role in elementary steps on the catalyst's surface, emphasizing on the optimization and design of industrial catalysts.
Article
Engineering, Chemical
Robert J. Macias, Juan C. Maya, Farid Chejne, Z. Afailal, J. Arauzo
Summary: This study introduces a novel population-balance based model for a bubbling fluidized bed reactor, accurately predicting experimental data for biochar gasification. The model considers two continuum phases: bubble and emulsion, and simulates the evolution of bubble size distribution.
Article
Chemistry, Analytical
Laura Pires da Mata Costa, Amanda L. T. Brandao, Jose Carlos Pinto
Summary: Polystyrene chemical recycling via pyrolysis is an appropriate method for post-consumption material disposal. However, there is a lack of modeling studies on the degradation mechanism. This study developed a detailed mechanistic model to understand the kinetics of polystyrene degradation and validated the model through experimental data.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Mathematics, Applied
Blessing O. Emerenini, Hermann J. Eberl
Summary: A simple reactor-scale mathematical model of active biofilm dispersal controlled by a quorum sensing system is presented. The model examines different cell loss patterns depending on the level of the quorum sensing signal and the state of the biofilm. A comparative study with a starvation induced dispersal model reveals distinct dynamic behaviors.
APPLIED MATHEMATICS AND COMPUTATION
(2022)
Article
Mathematics
V. V. Skazka
SBORNIK MATHEMATICS
(2017)
Article
Mathematics, Applied
V. S. Belonosov, V. V. Skazka
APPLIED MATHEMATICS LETTERS
(2008)
Article
Mining & Mineral Processing
V. V. Skazka, S. V. Serdyukov, G. N. Erokhin, A. S. Serdyukov
JOURNAL OF MINING SCIENCE
(2013)
Article
Mining & Mineral Processing
V. V. Skazka, S. V. Serdyukov, M. V. Kurlenya
JOURNAL OF MINING SCIENCE
(2014)
Article
Mathematics
V. V. Skazka
SBORNIK MATHEMATICS
(2014)
Article
Chemistry, Physical
Vladislav Sadykov, Anna Shlyakhtina, Ekaterina Sadovskaya, Nikita Eremeev, Valeriy Skazka, Vladimir Goncharov
SOLID STATE IONICS
(2020)
Article
Chemistry, Physical
Vladislav Sadykov, Anna Shlyakhtina, Nikolai Lyskov, Ekaterina Sadovskaya, Svetlana Cherepanova, Nikita Eremeev, Valery Skazka, Vladimir Goncharov, Elena Kharitonova
Article
Mathematics
VV Skazka
SIBERIAN MATHEMATICAL JOURNAL
(2005)
Article
Mining & Mineral Processing
AS Alekseev, VA Tsetsokho, AV Belonosova, AS Belonosov, VV Skazka
JOURNAL OF MINING SCIENCE
(2001)
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)