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Issue Information: Chem. Eng. Technol. 3/2025
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-03-26 DOI: 10.1002/ceat.70013
{"title":"Issue Information: Chem. Eng. Technol. 3/2025","authors":"","doi":"10.1002/ceat.70013","DOIUrl":"https://doi.org/10.1002/ceat.70013","url":null,"abstract":"","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceat.70013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cover Image: Chem. Eng. Technol. 3/2025
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-03-26 DOI: 10.1002/ceat.70014
{"title":"Cover Image: Chem. Eng. Technol. 3/2025","authors":"","doi":"10.1002/ceat.70014","DOIUrl":"https://doi.org/10.1002/ceat.70014","url":null,"abstract":"<p>Production of modern gas turbines in an industrial plant - closeup of the turbine made of steel. © industrieblick@AdobeStock\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceat.70014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical Simulation of Heating Systems in Coke Ovens and Longevity Analysis of Checker Bricks
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-03-19 DOI: 10.1002/ceat.12009
Jili Ang, Prof. Hao Jin, Zhiliang Xu
{"title":"Numerical Simulation of Heating Systems in Coke Ovens and Longevity Analysis of Checker Bricks","authors":"Jili Ang,&nbsp;Prof. Hao Jin,&nbsp;Zhiliang Xu","doi":"10.1002/ceat.12009","DOIUrl":"https://doi.org/10.1002/ceat.12009","url":null,"abstract":"<p>To establish a temperature control standard for 7-m coke ovens, a 3D transient coupled model of the combustion, carbonization and regenerative chamber model are developed. The temperature variations of the heating systems during the coking process are calculated by computational fluid dynamics. Microstructural analysis of unused and used clay checker bricks from a coking company, observed by scanning electron microscopy. The results showed periodic temperature fluctuations in the saddle bricks of the combustion chamber and the gas–solid phases in the regenerative chamber. Used bricks exhibited increased porosity and reduced corrosion resistance. Overheating flue gas in the combustion chamber can melt checker bricks in the regeneration chamber, with saddle brick temperature serving as an early warning. Simulations suggest keeping saddle brick temperatures below a critical threshold to prevent damage.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling Cavitation in Converging–Diverging Nozzle Using Computational Fluid Dynamics and Machine Learning Model
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-03-17 DOI: 10.1002/ceat.12011
You-Cheng Lu, Morteza Mohammadzaheri, Way Lee Cheng
{"title":"Modeling Cavitation in Converging–Diverging Nozzle Using Computational Fluid Dynamics and Machine Learning Model","authors":"You-Cheng Lu,&nbsp;Morteza Mohammadzaheri,&nbsp;Way Lee Cheng","doi":"10.1002/ceat.12011","DOIUrl":"https://doi.org/10.1002/ceat.12011","url":null,"abstract":"<p>Cavitation occurs when the pressure drops below the saturation pressure. In this study, computational fluid dynamics (CFD) is used to model the cavitation behavior in the Venturi tube under high pressure and to investigate the impact of geometric parameters on steam generation. In recent years, there has been a shift toward exploring machine learning as an alternative to traditional CFD. This work aims to establish an artificial neural network (ANN) using numerical analysis results to predict flow characteristics for various geometrical shapes of nozzles. This including the prediction of pressure drop and steam generation. The final results demonstrate a high accuracy in prediction.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceat.12011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Techno-Economic and Environmental Analyses of Ethyl Lactate Production at Various Reaction Scenarios
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-03-17 DOI: 10.1002/ceat.12005
Matheus Samponi Tucunduva Arantes, Thalia Marchinhaki Pedro Miranda, Nayara Pereira Lima, Fernanda Munhoz Passareli, Prof. Dr. Washington Luiz Esteves Magalhães, Prof. Dr. Marcos Lucio Corazza, Prof. Dr. Luís Ricardo Shigueyuki Kanda, Prof. Dr. Vítor Renan da Silva
{"title":"Techno-Economic and Environmental Analyses of Ethyl Lactate Production at Various Reaction Scenarios","authors":"Matheus Samponi Tucunduva Arantes,&nbsp;Thalia Marchinhaki Pedro Miranda,&nbsp;Nayara Pereira Lima,&nbsp;Fernanda Munhoz Passareli,&nbsp;Prof. Dr. Washington Luiz Esteves Magalhães,&nbsp;Prof. Dr. Marcos Lucio Corazza,&nbsp;Prof. Dr. Luís Ricardo Shigueyuki Kanda,&nbsp;Prof. Dr. Vítor Renan da Silva","doi":"10.1002/ceat.12005","DOIUrl":"https://doi.org/10.1002/ceat.12005","url":null,"abstract":"<p>Industrial scale-up requires knowing reaction's kinetics and evaluating the economic aspects of each reaction scenario. The present work evaluates ethyl lactate production kinetics on different reaction conditions, evaluating the key reaction parameters. Simulations of an industry yielding 1000 kg EL h<sup>−1</sup> were performed in Aspen Plus and the best Engineering pathway was determined on economic aspects. The study results revealed that the autocatalytic reaction is slow, and a catalyst is required. Both sulfuric acid and Amberlyst are efficient in the catalysis of such reaction, and according to the techno-economic analysis, among the evaluated scenarios, the ones conducted at 50 °C with an ethanol molar excess of 5 are the most efficient for the homogeneous and heterogeneous catalysis.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical Simulation of Melting Heat Transfer in Magnetohydrodynamic Fluid Flow over Moving Surfaces: Role of Diffusion and Chemical Reactions
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-03-17 DOI: 10.1002/ceat.12007
B. Venkateswarlu, P. V. Satya Narayana, Sang Woo Joo, Ahmed Sayed M. Metwally
{"title":"Numerical Simulation of Melting Heat Transfer in Magnetohydrodynamic Fluid Flow over Moving Surfaces: Role of Diffusion and Chemical Reactions","authors":"B. Venkateswarlu,&nbsp;P. V. Satya Narayana,&nbsp;Sang Woo Joo,&nbsp;Ahmed Sayed M. Metwally","doi":"10.1002/ceat.12007","DOIUrl":"https://doi.org/10.1002/ceat.12007","url":null,"abstract":"<p>The melting process is crucial for enhancing the efficiency of cooling systems in various sectors, including manufacturing, aerospace, and energy production, where effective HT is essential for optimal system performance. This paper delves into the impact of cross-diffusion on the melting HT of MHD fluid flow induced by a moving surface, considering dissipation and chemical reactions. The principal PDEs are converted into ODEs by utilizing suitable variables. To address the resultant system, a numerical method is utilized employing a proficient shooting technique in conjunction with the RKF approach. The discoveries disclose that the velocity, energy, and fluid concentration amplify with heightened melting and moving factors, whereas the velocity diminishes when encountering a more powerful magnetic force.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CH4 Oxidation on LaFeO3 Perovskite Catalysts for O2 Removal from Biomethane
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-03-17 DOI: 10.1002/ceat.12012
Dr. Norman Schreiter, Dipl.-Ing. Andrej Awgustow, Dr. Hendrik Wollmerstädt, Prof. Dr. Sven Kureti
{"title":"CH4 Oxidation on LaFeO3 Perovskite Catalysts for O2 Removal from Biomethane","authors":"Dr. Norman Schreiter,&nbsp;Dipl.-Ing. Andrej Awgustow,&nbsp;Dr. Hendrik Wollmerstädt,&nbsp;Prof. Dr. Sven Kureti","doi":"10.1002/ceat.12012","DOIUrl":"https://doi.org/10.1002/ceat.12012","url":null,"abstract":"<p>For the introduction of biomethane into the natural gas grid, the removal of O<sub>2</sub> is mandatory. Thus, the conversion of O<sub>2</sub> with excess CH<sub>4</sub> was investigated using LaFeO<sub>3</sub> catalysts. The variation of calcination temperature led to LaFeO<sub>3</sub> perovskites with different properties as deduced from extensive physical-chemical characterization. From coupling the characteristics with the catalytic performance, a structure–activity correlation was derived showing that BET surface area and crystalline structure are determining features. Consequently, the most active LaFeO<sub>3</sub> exhibited complete O<sub>2</sub> conversion already at 310 °C. Kinetic modeling based on a Langmuir–Hinshelwood mechanism provided suitable operation parameters for a plug flow reactor. The model was validated by predicting experiments.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceat.12012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Screening Procedures for Self-Reactive Substances, Differential Scanning Calorimetry-Onset and Heat-Flux Criteria
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-03-04 DOI: 10.1002/ceat.12006
Dr. Markus Gödde, Jörg Clemens, Dr. Marcus Malow
{"title":"Screening Procedures for Self-Reactive Substances, Differential Scanning Calorimetry-Onset and Heat-Flux Criteria","authors":"Dr. Markus Gödde,&nbsp;Jörg Clemens,&nbsp;Dr. Marcus Malow","doi":"10.1002/ceat.12006","DOIUrl":"https://doi.org/10.1002/ceat.12006","url":null,"abstract":"<p>We present a new screening procedure for the determination of the thermal stability of potential candidates for the class of self-reactive substances. For the classification of self-reactive substances, elaborate testing is necessary to determine the applicable type, according to the regulations. Annex 6 of the UN Manual of Tests and Criteria permits that the classification procedure for self-reactive substances may be omitted, if the estimated self accelerating decomposition temperature (SADT) is greater than 75 °C for a 50 kg package using an appropriate calorimetric technique, but no technique is described. Based on stationary theories of thermal explosion, we developed a screening approach using differential scanning calorimetry (DSC) onset and heat-flux criteria, respectively, at relevant temperatures. The proposed approach is validated with experimental data.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis of HZSM-5 from Montmorillonite for H2 Production via Steam Reforming of Dimethyl Ether
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-03-04 DOI: 10.1002/ceat.12008
Jia-Kang Zhang, Huan Wang, Shuang Wang, Xiao-Qian Feng, Sen-Han Zhang, Yong-Hua Zhao
{"title":"Synthesis of HZSM-5 from Montmorillonite for H2 Production via Steam Reforming of Dimethyl Ether","authors":"Jia-Kang Zhang,&nbsp;Huan Wang,&nbsp;Shuang Wang,&nbsp;Xiao-Qian Feng,&nbsp;Sen-Han Zhang,&nbsp;Yong-Hua Zhao","doi":"10.1002/ceat.12008","DOIUrl":"https://doi.org/10.1002/ceat.12008","url":null,"abstract":"<p>A series of HZSM-5 with different SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratio was synthesized successfully using montmorillonite treated by submolten salt activation technique as a raw material. Meanwhile, HZSM-5, employed as a solid acid catalyst, was blended with the commercial Cu/ZnO/Al<sub>2</sub>O<sub>3</sub> catalyst to form a bifunctional catalyst for the steam reforming of dimethyl ether (SRD) process. The results showed that the acidity and structural characteristics of HZSM-5 could be effectively regulated by adjusting the SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratio, and then affecting the SRD performance of the corresponding bifunctional catalyst. Among them, the bifunctional catalyst comprising HZSM-5 (SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> = 42) and Cu/ZnO/Al<sub>2</sub>O<sub>3</sub> presented the highest activity for the SRD performance, in which the dimethyl ether conversion and hydrogen yield could reach 94% and 85% at TOS of 12 h under the condition of reaction temperature of 300 °C, pressure of 0.1 MPa, space velocity of 5000 mL/(g·h), respectively.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recast Solubility Models for Correlating Solubility of Solid Drugs in Supercritical Carbon Dioxide
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-02-27 DOI: 10.1002/ceat.12003
Raghavan Amrithaa, Vikram Ramalingam, Chandrasekhar Garlapati
{"title":"Recast Solubility Models for Correlating Solubility of Solid Drugs in Supercritical Carbon Dioxide","authors":"Raghavan Amrithaa,&nbsp;Vikram Ramalingam,&nbsp;Chandrasekhar Garlapati","doi":"10.1002/ceat.12003","DOIUrl":"https://doi.org/10.1002/ceat.12003","url":null,"abstract":"<p>Solubilities of solid drugs in supercritical fluids were well represented by density models and mathematical models. In literature, several solubility models were reported, and some of them were observed to be redundant according to Gibbs phase rule. Therefore, the present work is aimed to address the redundant nature of the solubility models by recasting the existing solubility models with the help of the equation of state (EoS). Solubility models proposed by Adachi–Lu, Garlapati–Madras, Keshmiri et al., Si-Moussa et al., Belghait et al., Sodeifian et al. model 1, and Sodeifian et al. model 2 were considered for the study. Existing and recast versions of solubility models were evaluated with literature reported 20 drug compound's solubility data in supercritical carbon dioxide.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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