Pub Date : 2024-10-09DOI: 10.1016/j.cherd.2024.10.004
Wei Song , Fabian Diaz , Andrey Yasinskiy , Tobias Kleinert , Bernd Friedrich
To address the limitations of static models and gain insight into the processes of extractive leaching and chemical precipitation, a data-driven dynamic modeling strategy is proposed using a Lithium-ion battery recycling case study. The data correlations among pH, temperature, redox potential, conductivity and system state are investigated. Predictive models are then developed to describe the system state online and are employed as surrogate models for time-intensive offline chemical analyses. This enables further process optimization, such as time-saving measures and improved process efficiency through dynamic parameter studies. The proposed strategy serves as a guideline for dynamic modeling and integrates big data methodologies into chemical engineering.
{"title":"Enabling data-driven process dynamic modeling for extractive leaching and chemical precipitation","authors":"Wei Song , Fabian Diaz , Andrey Yasinskiy , Tobias Kleinert , Bernd Friedrich","doi":"10.1016/j.cherd.2024.10.004","DOIUrl":"10.1016/j.cherd.2024.10.004","url":null,"abstract":"<div><div>To address the limitations of static models and gain insight into the processes of extractive leaching and chemical precipitation, a data-driven dynamic modeling strategy is proposed using a Lithium-ion battery recycling case study. The data correlations among pH, temperature, redox potential, conductivity and system state are investigated. Predictive models are then developed to describe the system state online and are employed as surrogate models for time-intensive offline chemical analyses. This enables further process optimization, such as time-saving measures and improved process efficiency through dynamic parameter studies. The proposed strategy serves as a guideline for dynamic modeling and integrates big data methodologies into chemical engineering.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"211 ","pages":"Pages 179-183"},"PeriodicalIF":3.7,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142428829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-05DOI: 10.1016/j.cherd.2024.10.003
G.L. Chahine , Q. Liu , C.-T. Hsiao , G. Loraine
In order to separate gas and liquid from a two-phase mixture in space or earth applications, one can generate a strong artificial acceleration field instead of relying on gravity. This can be achieved by generating a swirl flow in a separator. The DYNASWIRL® phase separator is such a passive device, which had been demonstrated in air/water mixtures in the laboratory and on five reduced gravity NASA parabolic flights. In this work, extensive laboratory testing and numerical simulations are conducted to demonstrate the validity of the DYNASWIRL for phase separation with cryogenics. Liquid nitrogen (LN2) is used for extensive testing involving unsteady tank-to-tank transfer with quenching of separator and piping, liquid boil-off and vaporization, phase separation and recovery. This paper describes the separator and testing setups used. It examines the effects of the liquid (water and LN2), geometric parameters, and their effects on the separation and on the pressure loss across the separator, and analyzes the flow dynamics of the gas removal process. Validated numerical simulations support the experimental results and help explain the effects of the design parameters on the results.
{"title":"Transient behavior of the DYNASWIRL® phase separator during cryogenics tank-to-tank transfer operations","authors":"G.L. Chahine , Q. Liu , C.-T. Hsiao , G. Loraine","doi":"10.1016/j.cherd.2024.10.003","DOIUrl":"10.1016/j.cherd.2024.10.003","url":null,"abstract":"<div><div>In order to separate gas and liquid from a two-phase mixture in space or earth applications, one can generate a strong artificial acceleration field instead of relying on gravity. This can be achieved by generating a swirl flow in a separator. The DYNASWIRL® phase separator is such a passive device, which had been demonstrated in air/water mixtures in the laboratory and on five reduced gravity NASA parabolic flights. In this work, extensive laboratory testing and numerical simulations are conducted to demonstrate the validity of the DYNASWIRL for phase separation with cryogenics. Liquid nitrogen (LN<sub>2</sub>) is used for extensive testing involving unsteady tank-to-tank transfer with quenching of separator and piping, liquid boil-off and vaporization, phase separation and recovery. This paper describes the separator and testing setups used. It examines the effects of the liquid (water and LN<sub>2</sub>), geometric parameters, and their effects on the separation and on the pressure loss across the separator, and analyzes the flow dynamics of the gas removal process. Validated numerical simulations support the experimental results and help explain the effects of the design parameters on the results.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"211 ","pages":"Pages 119-136"},"PeriodicalIF":3.7,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142428833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-05DOI: 10.1016/j.cherd.2024.10.001
Jasim I. Humadi , Muayed A. Shihab , Ahmed A. Hasan , A.M. Mohammed
This research pioneered the use of a nanocatalyst composed of manganese oxide (MnO2) and stannic oxide (SnO2) to effectively remove dibenzothiophene (DBT) from kerosene fuel through the catalytic oxidative desulfurization (ODS) process, using hydrogen peroxide (H2O2) as the oxidant. Impregnating SnO2 with varying amounts of MnO2 was used to manufacture the catalyst. The oxidation experiment ran in a batch reactor with varying reaction times and temperatures to determine optimal conditions. High MnO2 dispersion over SnO2 was shown by catalyst characterization data. Under optimal operating parameters (catalyst type: 5 % MnO2/SnO2, reaction temperature: 75 °C, and reaction duration: 100 min), the results demonstrated a maximum DBT removal efficiency of 82.84 % from kerosene fuel. This research also provides the construction of Artificial Neural Network (ANN) model to simulate the upgrading of kerosene fuel via desulfurization process. There has been a growing trend toward the diversified use of ANN to represent steady state systems in chemical engineering. MATLAB's code was employed for matching the experimental data to the artificial neural network (ANN) model. The resulted data showed significant agreement between the experimental and predicted outcomes, with regression coefficients (R2) of 0.99902, 0.99986, and 0.99961 and mean square errors (MSE) of 0.266, 0.272, and 0.104 for 0 % MnO2/SnO2, 1 % MnO2/SnO2, and 5 % MnO2/SnO2 respectively. This interactive model provided a solid foundation for understanding the novel behavior of the oxidation process.
{"title":"Experimental and ANN modeling of kerosene fuel desulfurization using a manganese oxide-tin oxide catalyst","authors":"Jasim I. Humadi , Muayed A. Shihab , Ahmed A. Hasan , A.M. Mohammed","doi":"10.1016/j.cherd.2024.10.001","DOIUrl":"10.1016/j.cherd.2024.10.001","url":null,"abstract":"<div><div>This research pioneered the use of a nanocatalyst composed of manganese oxide (MnO<sub>2</sub>) and stannic oxide (SnO<sub>2</sub>) to effectively remove dibenzothiophene (DBT) from kerosene fuel through the catalytic oxidative desulfurization (ODS) process, using hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) as the oxidant. Impregnating SnO<sub>2</sub> with varying amounts of MnO<sub>2</sub> was used to manufacture the catalyst. The oxidation experiment ran in a batch reactor with varying reaction times and temperatures to determine optimal conditions. High MnO<sub>2</sub> dispersion over SnO<sub>2</sub> was shown by catalyst characterization data. Under optimal operating parameters (catalyst type: 5 % MnO<sub>2</sub>/SnO<sub>2</sub>, reaction temperature: 75 °C, and reaction duration: 100 min), the results demonstrated a maximum DBT removal efficiency of 82.84 % from kerosene fuel. This research also provides the construction of Artificial Neural Network (ANN) model to simulate the upgrading of kerosene fuel via desulfurization process. There has been a growing trend toward the diversified use of ANN to represent steady state systems in chemical engineering. MATLAB's code was employed for matching the experimental data to the artificial neural network (ANN) model. The resulted data showed significant agreement between the experimental and predicted outcomes, with regression coefficients (R<sup>2</sup>) of 0.99902, 0.99986, and 0.99961 and mean square errors (MSE) of 0.266, 0.272, and 0.104 for 0 % MnO<sub>2</sub>/SnO<sub>2</sub>, 1 % MnO<sub>2</sub>/SnO<sub>2</sub>, and 5 % MnO<sub>2</sub>/SnO<sub>2</sub> respectively. This interactive model provided a solid foundation for understanding the novel behavior of the oxidation process.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"211 ","pages":"Pages 160-167"},"PeriodicalIF":3.7,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142428777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-05DOI: 10.1016/j.cherd.2024.09.041
Alvaro Ferre , Johannes Voggenreiter , Christian F. Breitkreuz , Denis Worch , Udo Lubenau , Hans Hasse , Jakob Burger
Poly(oxymethylene) dimethyl ethers of chain length 3–5 ( ) are discussed as synthetic diesel fuels due to their potential to significantly reduce soot emissions while presenting physicochemical properties similar to conventional diesel fuels. A recently developed process to produce directly from methanol and aqueous formaldehyde is a promising way to avoid expensive intermediates such as trioxane, methylal, or dimethyl ether. The process consists of a reactor, a distillation sequence, and a membrane unit. The first distillation column is particularly challenging due to the reactive character of the separation, the high number of components present, and the limited solubility of formaldehyde. Up to now, the feasibility of this separation has yet to be demonstrated. This work presents closed-loop experiments in a demonstration plant erected at the Campus Straubing of the Technical University of Munich with closing recycle. In the distillation step, with very small impurities of around 800 ppm of formaldehyde was obtained. The experimental results were compared with simulations based on a reactive equilibrium stage model. The simulations of the temperature and composition profiles for the majority of the components are in line with the experiments. Although the membrane separation exhibited weaker water selectivity than in previous tests, it was sufficient to overcome distillation boundaries. Additionally, this study assesses the potential for solid precipitation, explores trade-offs in product quality, and discusses overall mass balances of the process, demonstrating the overall feasibility of the process.
{"title":"Experimental demonstration of the production of poly(oxymethylene) dimethyl ethers from methanolic formaldehyde solutions in a closed-loop mini-plant","authors":"Alvaro Ferre , Johannes Voggenreiter , Christian F. Breitkreuz , Denis Worch , Udo Lubenau , Hans Hasse , Jakob Burger","doi":"10.1016/j.cherd.2024.09.041","DOIUrl":"10.1016/j.cherd.2024.09.041","url":null,"abstract":"<div><div>Poly(oxymethylene) dimethyl ethers of chain length 3–5 ( <figure><img></figure> ) are discussed as synthetic diesel fuels due to their potential to significantly reduce soot emissions while presenting physicochemical properties similar to conventional diesel fuels. A recently developed process to produce <figure><img></figure> directly from methanol and aqueous formaldehyde is a promising way to avoid expensive intermediates such as trioxane, methylal, or dimethyl ether. The process consists of a reactor, a distillation sequence, and a membrane unit. The first distillation column is particularly challenging due to the reactive character of the separation, the high number of components present, and the limited solubility of formaldehyde. Up to now, the feasibility of this separation has yet to be demonstrated. This work presents closed-loop experiments in a demonstration plant erected at the Campus Straubing of the Technical University of Munich with closing recycle. In the distillation step, <figure><img></figure> with very small impurities of around 800 ppm of formaldehyde was obtained. The experimental results were compared with simulations based on a reactive equilibrium stage model. The simulations of the temperature and composition profiles for the majority of the components are in line with the experiments. Although the membrane separation exhibited weaker water selectivity than in previous tests, it was sufficient to overcome distillation boundaries. Additionally, this study assesses the potential for solid precipitation, explores trade-offs in product quality, and discusses overall mass balances of the process, demonstrating the overall feasibility of the process.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"211 ","pages":"Pages 331-342"},"PeriodicalIF":3.7,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142533592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Eulerian-Lagrangian computational models are critical for understanding gas-phase processes and addressing engineering challenges, yet their numerical accuracy in reactive gas-solid fluidized beds remains a concern. This work utilizes the multiphase particle-in-cell (MP-PIC) scheme to assess the impact of parcel number on the hydrodynamics and reaction predictions in the fluid catalytic cracking (FCC) catalyst regeneration process. By employing the energy-minimization multi-scale model for bubbling and turbulent flow regimes, the MP-PIC simulations closely match experimental solids concentration profiles. We developed and analyzed different parcel resolutions: 9.5×10³, 2.0×10⁴, 1.0×10⁵, 2.2×10⁵, 1.1×10⁶ in bubbling fluidized beds (BFB), and 6.5×10³, 1.3×10⁴, 7.1×10⁴, 1.4×10⁵, 6.8×10⁵ in turbulent fluidized beds (TFB). The findings reveal a significant sensitivity of coke combustion efficiency, flue gas evolution, and temperature to parcel resolution in BFB, attributable to mesoscale activities, with less impact observed in TFB. The study highlights the essential balance between the accuracy of Lagrangian particle configuration and computational costs.
{"title":"Influence of computational parcel resolution on hydrodynamics and performance of reacting fluidized bed reactors","authors":"Adefarati Oloruntoba , Hongliang Xiao , Linlin Duan , Joule Bergerson , Yongmin Zhang","doi":"10.1016/j.cherd.2024.09.033","DOIUrl":"10.1016/j.cherd.2024.09.033","url":null,"abstract":"<div><div>The Eulerian-Lagrangian computational models are critical for understanding gas-phase processes and addressing engineering challenges, yet their numerical accuracy in reactive gas-solid fluidized beds remains a concern. This work utilizes the multiphase particle-in-cell (MP-PIC) scheme to assess the impact of parcel number on the hydrodynamics and reaction predictions in the fluid catalytic cracking (FCC) catalyst regeneration process. By employing the energy-minimization multi-scale model for bubbling and turbulent flow regimes, the MP-PIC simulations closely match experimental solids concentration profiles. We developed and analyzed different parcel resolutions: 9.5×10³, 2.0×10⁴, 1.0×10⁵, 2.2×10⁵, 1.1×10⁶ in bubbling fluidized beds (BFB), and 6.5×10³, 1.3×10⁴, 7.1×10⁴, 1.4×10⁵, 6.8×10⁵ in turbulent fluidized beds (TFB). The findings reveal a significant sensitivity of coke combustion efficiency, flue gas evolution, and temperature to parcel resolution in BFB, attributable to mesoscale activities, with less impact observed in TFB. The study highlights the essential balance between the accuracy of Lagrangian particle configuration and computational costs.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"211 ","pages":"Pages 269-284"},"PeriodicalIF":3.7,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-02DOI: 10.1016/j.cherd.2024.10.002
Peng Chen , Jikang Han , Zhiyuan Zhang , Longlong Jing , Yanfeng Li
Flotation columns are extensively utilized to separate fine mineral particles. In highly turbulent environments, the increased collision efficiency between bubbles and particles can lead to improved flotation efficiency of fine particles. The fluidized bed flotation column (FBFC), a new type of flotation equipment, improves the separation efficiency of fine particles by creating a highly turbulent environment in the fluidized zone through the addition of solid particles. This paper investigated the fluidization characteristics, bubble, and gas hold up of the FBFC, along with the flotation efficiency of fine quartz particles. Experimental results showed that introducing gas enhanced the fluidization process in the fluidized bed. The fluidized zone facilitated the fragmentation of bubbles into smaller ones. With increasing liquid velocity, the bubble diameter decreases before subsequently increasing, while the gas holdup initially rises and then declines. The flotation efficiency of fine quartz particles is superior in FBFC with added particles compared to those without added particles. The flotation efficiency of fine particles increases with the rise in both liquid velocity and gas velocity.
{"title":"Innovative fluidized bed flotation column for fine particle separation","authors":"Peng Chen , Jikang Han , Zhiyuan Zhang , Longlong Jing , Yanfeng Li","doi":"10.1016/j.cherd.2024.10.002","DOIUrl":"10.1016/j.cherd.2024.10.002","url":null,"abstract":"<div><div>Flotation columns are extensively utilized to separate fine mineral particles. In highly turbulent environments, the increased collision efficiency between bubbles and particles can lead to improved flotation efficiency of fine particles. The fluidized bed flotation column (FBFC), a new type of flotation equipment, improves the separation efficiency of fine particles by creating a highly turbulent environment in the fluidized zone through the addition of solid particles. This paper investigated the fluidization characteristics, bubble, and gas hold up of the FBFC, along with the flotation efficiency of fine quartz particles. Experimental results showed that introducing gas enhanced the fluidization process in the fluidized bed. The fluidized zone facilitated the fragmentation of bubbles into smaller ones. With increasing liquid velocity, the bubble diameter decreases before subsequently increasing, while the gas holdup initially rises and then declines. The flotation efficiency of fine quartz particles is superior in FBFC with added particles compared to those without added particles. The flotation efficiency of fine particles increases with the rise in both liquid velocity and gas velocity.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"211 ","pages":"Pages 46-52"},"PeriodicalIF":3.7,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142428831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-01DOI: 10.1016/j.cherd.2024.09.032
Xin Li , Lu-Lu Ma , Si-Wen Li , Rong-Xi Li , Jian-She Zhao
Heteropolyacids (HPA), as a new type of green catalyst, have been widely used in various fields and achieved good results. However, its development is limited by some disadvantages, such as low surface area, easy self-aggregation and difficult recycling. As a kind of polyelectrolyte with configurable structure, polyionic-liquid (PIL) have the advantages of easy processing, strong tunability of chemical structure and function, and easy-separation from reactants. In order to solve the problems of HPA, a new type of polyionic-liquid heteropolyacid (PILH) with catalytic ability was prepared by organically combining PIL and HPA. This paper summarizes different synthesis methods of PIL and different combination methods of PIL with HPA. The application of PILH, mainly in electrochemistry, catalysis and adsorption field, is also summarized. It is considered that PILH have good application performance as a new kind of composite material, which provides reference for further research on the application of PILH.
{"title":"Research progress in synthesis and application of polyionic-liquid heteropolyacid materials","authors":"Xin Li , Lu-Lu Ma , Si-Wen Li , Rong-Xi Li , Jian-She Zhao","doi":"10.1016/j.cherd.2024.09.032","DOIUrl":"10.1016/j.cherd.2024.09.032","url":null,"abstract":"<div><div>Heteropolyacids (HPA), as a new type of green catalyst, have been widely used in various fields and achieved good results. However, its development is limited by some disadvantages, such as low surface area, easy self-aggregation and difficult recycling. As a kind of polyelectrolyte with configurable structure, polyionic-liquid (PIL) have the advantages of easy processing, strong tunability of chemical structure and function, and easy-separation from reactants. In order to solve the problems of HPA, a new type of polyionic-liquid heteropolyacid (PILH) with catalytic ability was prepared by organically combining PIL and HPA. This paper summarizes different synthesis methods of PIL and different combination methods of PIL with HPA. The application of PILH, mainly in electrochemistry, catalysis and adsorption field, is also summarized. It is considered that PILH have good application performance as a new kind of composite material, which provides reference for further research on the application of PILH.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"210 ","pages":"Pages 735-749"},"PeriodicalIF":3.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142356977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-01DOI: 10.1016/j.cherd.2024.09.025
Roberto Fernando Leuchtenberger , Jorge Luiz Biazussi , Antonio Carlos Bannwart
The behavior of water-in-oil emulsions flow within Electrical Submersible Pumps (ESPs) is of significant interest in the oil and gas industry due to its complex rheological characteristics, which are influenced by operational parameters and the chemical properties of both phases. Operational parameters such as dispersed phase fraction, temperature, flow rate, and pump design were investigated experimentally in this work. Improved semi-empirical models for mean and maximum droplet diameter estimation were also proposed. Through extensive experimentation and statistical analysis, this study reveals that smaller droplets form with increasing dispersed phase fraction and the flow geometry significantly affects droplet breakage intensity. The proposed models integrate the dispersed phase fraction, dimensionless flow rate, specific speed, and energy dissipation rate, exhibiting commendable alignment with experimental findings. This not only helps predict effective viscosity but offers valuable insights for further analyses, particularly regarding catastrophic phase inversion (CPI) prediction. These aspects have significant importance in the oil and gas industry and can enable the optimization of production systems and processing facilities.
{"title":"Experimental and theoretical modeling of droplet break-up of W/O emulsion flow in ESPs","authors":"Roberto Fernando Leuchtenberger , Jorge Luiz Biazussi , Antonio Carlos Bannwart","doi":"10.1016/j.cherd.2024.09.025","DOIUrl":"10.1016/j.cherd.2024.09.025","url":null,"abstract":"<div><div>The behavior of water-in-oil emulsions flow within Electrical Submersible Pumps (ESPs) is of significant interest in the oil and gas industry due to its complex rheological characteristics, which are influenced by operational parameters and the chemical properties of both phases. Operational parameters such as dispersed phase fraction, temperature, flow rate, and pump design were investigated experimentally in this work. Improved semi-empirical models for mean and maximum droplet diameter estimation were also proposed. Through extensive experimentation and statistical analysis, this study reveals that smaller droplets form with increasing dispersed phase fraction and the flow geometry significantly affects droplet breakage intensity. The proposed models integrate the dispersed phase fraction, dimensionless flow rate, specific speed, and energy dissipation rate, exhibiting commendable alignment with experimental findings. This not only helps predict effective viscosity but offers valuable insights for further analyses, particularly regarding catastrophic phase inversion (CPI) prediction. These aspects have significant importance in the oil and gas industry and can enable the optimization of production systems and processing facilities.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"210 ","pages":"Pages 724-734"},"PeriodicalIF":3.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142356976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-01DOI: 10.1016/j.cherd.2024.08.016
Isuru A. Udugama , Michael A. Taube , Rob Kirkpatrick , Christoph Bayer , Brent R. Young
{"title":"Corrigendum to “Implications for control systems in highly volatile energy markets: Using a high purity distillation electrification case study” [Chem. Eng. Res. Des. 203 (2024) 431–440]","authors":"Isuru A. Udugama , Michael A. Taube , Rob Kirkpatrick , Christoph Bayer , Brent R. Young","doi":"10.1016/j.cherd.2024.08.016","DOIUrl":"10.1016/j.cherd.2024.08.016","url":null,"abstract":"","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"210 ","pages":"Page 750"},"PeriodicalIF":3.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142422442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-01DOI: 10.1016/j.cherd.2024.09.043
Talaat Moeini , Fereshteh Meshkani
An ultrasonic pretreatment was applied to prepare ZnO-CuO-Al2O3-Cr2O3 mixed oxide catalysts for high-temperature water-gas shift reactions. XRD, BET, SEM, EDX, TPR, TGA, and FT-IR characterization tests were administered. Sonication time (1, 1.5, 2.5 h) and power (70, 140, 210 W) studied. Characterization results indicated that ultrasonic waves significantly accelerated the chemical reaction, effectively decreasing particle agglomeration and increasing particle distribution uniformity. In SEM images, the particle size of the prepared sample with 30 % ultrasonic intensity is reduced with a uniform size distribution that increases surface area and creates excellent performance. The significant impact of ultrasound irradiation has been demonstrated in the development and growth of particles under various experimental synthesis conditions. The sample synthesized under 1.5 hour of ultrasound irradiation and 400℃ calcination obtained the best results because of morphology, surface area, and crystallinity contributing factors.
{"title":"Influence of ultrasound treatment over CuZnAlCr mixed oxide catalysts in high-temperature water gas shift reaction","authors":"Talaat Moeini , Fereshteh Meshkani","doi":"10.1016/j.cherd.2024.09.043","DOIUrl":"10.1016/j.cherd.2024.09.043","url":null,"abstract":"<div><div>An ultrasonic pretreatment was applied to prepare ZnO-CuO-Al<sub>2</sub>O<sub>3</sub>-Cr<sub>2</sub>O<sub>3</sub> mixed oxide catalysts for high-temperature water-gas shift reactions. XRD, BET, SEM, EDX, TPR, TGA, and FT-IR characterization tests were administered. Sonication time (1, 1.5, 2.5 h) and power (70, 140, 210 W) studied. Characterization results indicated that ultrasonic waves significantly accelerated the chemical reaction, effectively decreasing particle agglomeration and increasing particle distribution uniformity. In SEM images, the particle size of the prepared sample with 30 % ultrasonic intensity is reduced with a uniform size distribution that increases surface area and creates excellent performance. The significant impact of ultrasound irradiation has been demonstrated in the development and growth of particles under various experimental synthesis conditions. The sample synthesized under 1.5 hour of ultrasound irradiation and 400℃ calcination obtained the best results because of morphology, surface area, and crystallinity contributing factors.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"211 ","pages":"Pages 95-104"},"PeriodicalIF":3.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142428836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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