Chemical Engineering and Processing - Process Intensification最新文献

Stepping up: From lab scale to industrial processes

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-28 DOI: 10.1016/j.cep.2024.110094

Francesca Paradisi

引用次数: 0

Technology for removing PM2.5 in clean coal processes

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-26 DOI: 10.1016/j.cep.2024.110089

Yi-Shun Chen , Shih-Hao Chou , Shu-San Hsiau , Li-Yang Chang

{"title":"Technology for removing PM2.5 in clean coal processes","authors":"Yi-Shun Chen , Shih-Hao Chou , Shu-San Hsiau , Li-Yang Chang","doi":"10.1016/j.cep.2024.110089","DOIUrl":"10.1016/j.cep.2024.110089","url":null,"abstract":"<div><div>Most countries primarily utilize thermal power to meet their energy needs. However, thermal power generation generates a substantial amount of pollutants, such as particulate matter (PM), SO<sub>X</sub>, and NO<sub>X</sub>. These pollutants not only damage backend turbines and related equipment but also pollute the environment; thus, controlling their emissions is critical.</div><div>This study developed a system operating under high temperature by integrating heating, pneumatic conveying, dust particulate supply, and filter material transport systems. This setup enables the simulation of the entry of syngas with PM at the output of a gasification unit. The developed composite filtration system was analyzed under various operational parameters, including different temperatures, inlet air velocities, and mass flow rates of filter material, to examine the changes in the dust particulate size distribution at its outlet and its PM<sub>2.5</sub> collection efficiency. In a series of tests, the collection efficiency of this system reached at least 95% at operating temperatures between 20°C and 600°C. Each 100°C increase in the operating temperature resulted in a 0.63% decrease in the PM<sub>2.5</sub> collection efficiency. The findings of this study lay the foundation for the future development of high-temperature gas purification systems.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"208 ","pages":"Article 110089"},"PeriodicalIF":3.8,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748770","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}

引用次数: 0

Nanoparticle deagglomeration driven by a high shear mixer and intensification of low-speed stirring in a viscous system

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-26 DOI: 10.1016/j.cep.2024.110092

Zhe Li , Zilong Xu , Lixiang Wan , Ziqiang Zhang , Baoqing Liu

{"title":"Nanoparticle deagglomeration driven by a high shear mixer and intensification of low-speed stirring in a viscous system","authors":"Zhe Li , Zilong Xu , Lixiang Wan , Ziqiang Zhang , Baoqing Liu","doi":"10.1016/j.cep.2024.110092","DOIUrl":"10.1016/j.cep.2024.110092","url":null,"abstract":"<div><div>High shear mixers (HSMs), with their unique advantages of high shear forces and a wide operational range, are commonly used in nanoparticle deagglomeration. This study explores a novel approach to intensifying nanoparticle deagglomeration in a 100 mPa‧s viscous system using HSMs combined with low-speed stirring. The effects of main operating and structural parameters were experimentally investigated. The results show that the teethed HSM outperforms the blade-screen HSM, achieving a smaller attainable size (114 nm vs. 210 nm) and a higher fine particle generation fraction (46.08% vs. 18.77%). Increasing HSM size directly affects the energy input (from 6.478 MJ/kg to 31.879 MJ/kg), which influences the deagglomeration mechanism and kinetics but does not affect the smallest attainable size (117 nm). Higher solid contents improve energy efficiency, while low-speed stirring, though not altering the deagglomeration mechanism, enhances its kinetics. The process intensification factor (<em>S</em>) and energy efficiency factor (<em>ε</em><sub>m</sub>) were defined to evaluate the intensification of low-speed stirring. Increasing the impeller speed enhances this effect. The PBT impeller with a diameter ratio of 0.35 is identified as the ideal structure in this study, improving deagglomeration performance by 8.26% while reducing energy consumption by 8.3%. These results provide guidance for optimizing processes and improving deagglomeration performance through the combination of low-speed stirring in viscous systems for process industries.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"208 ","pages":"Article 110092"},"PeriodicalIF":3.8,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748315","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}

引用次数: 0

Influence of threaded pipe structural parameters on the conveyance of lithium-ion battery anode materials

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-24 DOI: 10.1016/j.cep.2024.110086

Shuangcheng Fu , Minghui Xu , Liang Tao , Cheng Zhu , Shengzheng Wang , Faqi Zhou , Shenghu Yan , Yue Zhang

{"title":"Influence of threaded pipe structural parameters on the conveyance of lithium-ion battery anode materials","authors":"Shuangcheng Fu , Minghui Xu , Liang Tao , Cheng Zhu , Shengzheng Wang , Faqi Zhou , Shenghu Yan , Yue Zhang","doi":"10.1016/j.cep.2024.110086","DOIUrl":"10.1016/j.cep.2024.110086","url":null,"abstract":"<div><div>Particle stratification occurs during the pneumatic conveyance of lithium-ion battery (LIB) anode materials, resulting in an uneven particle size distribution, which affects battery performance. To optimize the conveyance of lithium-ion battery anode material particles and achieve uniform mixing of large and small particles, this study proposes the inclusion of a threaded pipe section and evaluates this structure based on numerical simulations and experimental research. The results indicate that a pitch of 500 mm maximizes the mixing performance enhancement coefficient for the threaded pipe section. Additionally, the mixing performance is best for a channel comprising 4 threaded pipe sections (the enhancement coefficient exceeds 1.6). The final structure with 4 threaded pipe sections, 500 mm pitch, and 4 channels can be used for graphitic anodes in LIBs under conditions of a small pressure drop and excellent mixing performance. This structure also provides uniform particle transportation.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"208 ","pages":"Article 110086"},"PeriodicalIF":3.8,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748766","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}

引用次数: 0

Structural optimization of separation layer and porous PES substrate for enhanced pervaporation desalination performance

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-24 DOI: 10.1016/j.cep.2024.110083

Thi Mar , Da Yin , Ziyu Fang , Tao Wang , Xi Dai , Bing Cao , Rui Zhang

{"title":"Structural optimization of separation layer and porous PES substrate for enhanced pervaporation desalination performance","authors":"Thi Mar , Da Yin , Ziyu Fang , Tao Wang , Xi Dai , Bing Cao , Rui Zhang","doi":"10.1016/j.cep.2024.110083","DOIUrl":"10.1016/j.cep.2024.110083","url":null,"abstract":"<div><div>Pervaporation membranes with water-selective properties hold great potential for desalination and brine concentration applications. In this study, a modified PES porous membrane with smaller pore sizes and enhanced interfacial support was used as the substrate. Ultrathin selective layers were fabricated on its surface via atomized spray coating, resulting in high-performance pervaporation membranes for desalination analysis. The study compares the effects of PVA and PEI on membrane performance under different crosslinking systems. At 82 °C, using a 3.5 wt.% sodium chloride solution, the PES composite membrane with a PEI/SPTA selective layer achieved a maximum flux of 180.35 ± 13.8 kg m<sup>-</sup>² h⁻¹, with a salt rejection rate of 99.97% ± 0.2. Even at a higher brine concentration of 20 wt.%, the membrane maintained a flux of 49.77 ± 7.3 kg m<sup>-</sup>² h⁻¹ at 72 °C. The membrane's high salt rejection and stable performance under complex operating conditions demonstrate that pervaporation composite membranes prepared with low-surface-porosity substrates offer enhanced cycle stability and industrial potential in real-world desalination and concentration applications.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"208 ","pages":"Article 110083"},"PeriodicalIF":3.8,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747765","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}

引用次数: 0

A comprehensive review of pinch flow fractionation in microfluidics: From principles to practical applications

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-24 DOI: 10.1016/j.cep.2024.110087

Seyed Nezameddin Ashrafizadeh, Mahdi Zare, Mahdi Khatibi

{"title":"A comprehensive review of pinch flow fractionation in microfluidics: From principles to practical applications","authors":"Seyed Nezameddin Ashrafizadeh, Mahdi Zare, Mahdi Khatibi","doi":"10.1016/j.cep.2024.110087","DOIUrl":"10.1016/j.cep.2024.110087","url":null,"abstract":"<div><div>Pinch flow fractionation (PFF) is a microfluidic-based passive technique for particle separation that has numerous scientific applications. The efficiency of this technique is dependent on the device's two pinch and broad sections, allowing for the separation of particles based on size. This study provides a comprehensive evaluation of the PFF approach from 2004 to 2024, highlighting its improved techniques and wide range of applications. This analysis is fueled by the consolidation and analysis of various methods and improvements in PFF technology. This article aims to tackle the issue of insufficient evaluations in this field by conducting a meticulous assessment of the existing literature. The article also aims to explore the potential for future expansion and applications of this subject in various scientific fields. There has been a noticeable increase in the number of studies examining PFF over time. However, none of them have comprehensively reviewed all possible ways to enhance or utilize PFF. The current study offers a comprehensive examination of PFF enhancement methods, their practical applications, and the potential for future developments. It is widely utilized in an increasing range of scientific applications that involve particle separation.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"208 ","pages":"Article 110087"},"PeriodicalIF":3.8,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748767","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}

引用次数: 0

Performance study of lithium ion sieve composite in high gravity for Li+ adsorption

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-24 DOI: 10.1016/j.cep.2024.110079

Ying Ma, Youzhi Liu, Jiayu Li, Chengqian Zhang, Shufei Wang

{"title":"Performance study of lithium ion sieve composite in high gravity for Li+ adsorption","authors":"Ying Ma, Youzhi Liu, Jiayu Li, Chengqian Zhang, Shufei Wang","doi":"10.1016/j.cep.2024.110079","DOIUrl":"10.1016/j.cep.2024.110079","url":null,"abstract":"<div><div>The demand for lithium-ion batteries in new energy vehicles and energy storage technologies is rapidly increasing, making the efficient extraction of lithium resources from salt lakes, which are rich in lithium reserves, crucial. To address the issues of slow adsorption rate and low adsorption capacity of lithium ion sieves in the adsorption column, In this paper, the high-gravity rotating packed bed (RPB) is utilized for the first time to enhance the adsorption process of Li<sup>+</sup> on lithium ion sieve composite material(CTS/L-HMO), thereby investigating its adsorption mechanism. Specifically, CTS/L-HMO was prepared by combining manganese-based lithium ion sieves with chitosan, and used as the filler for the RPB to adsorb lithium containing solution. The research showed that chitosan successfully coated the manganese-based lithium ion sieves and the distribution of various elements was uniform. In the RPB, the adsorption capacity of CTS/L-HMO increased first and then decreased with the increase of liquid flow rate and high gravity factor. Compared to a fixed bed, the adsorption capacity and adsorption rate in the RPB increased by 43.30 % and 33.33 %, respectively. After 10 cycles of regeneration experiments, the adsorption capacity of CTS/L-HMO remained as high as 30.19 mg/g, and it exhibited high selective adsorption for Li<sup>+</sup>.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"208 ","pages":"Article 110079"},"PeriodicalIF":3.8,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748316","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}

引用次数: 0

The first implementation of repetitive translucent photocatalyst structures to enhance the energy efficiency of photoelectrochemical applications

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-24 DOI: 10.1016/j.cep.2024.110085

Tobias El Chalid , Amer Hakki , Jef Vleugels , Mumin Enis Leblebici

{"title":"The first implementation of repetitive translucent photocatalyst structures to enhance the energy efficiency of photoelectrochemical applications","authors":"Tobias El Chalid , Amer Hakki , Jef Vleugels , Mumin Enis Leblebici","doi":"10.1016/j.cep.2024.110085","DOIUrl":"10.1016/j.cep.2024.110085","url":null,"abstract":"<div><div>Improving the energy efficiency of photoelectrochemical cells (PECs) yields an important tool to address the current carbon circularization problems. However, the efficiency of these cells was held back due to mass, electron, and photon transfer limitations. In this work, the use of translucent repetitive thin catalyst structures within the same light path was introduced in PEC cells, allowing to absorb more irradiated light due to an increased total catalyst loading, while still benefiting from the good transfer phenomena of thin catalyst films. The results unequivocally showed that thinner catalyst layers in a repetitive structure could produce more than seven times the amount of photocurrent than a single thick catalyst layer while utilising less catalyst material. This work proved that not only the nature of the photocatalyst but also the use of repetitive thin translucent structures should be considered when designing a photoelectrochemical reactor to maximise energy efficiency.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"208 ","pages":"Article 110085"},"PeriodicalIF":3.8,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748765","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}

引用次数: 0

Phenomenological model of a reactive distillation column validated at pilot-plant scale to produce n-butyl lactate 反应蒸馏塔的现象模型在生产乳酸正丁酯的中试工厂规模上得到验证

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-22 DOI: 10.1016/j.cep.2024.110037

Cesar A. Garcia , Silvia Ochoa , Iván D. Gil , Argimiro R. Secchi

{"title":"Phenomenological model of a reactive distillation column validated at pilot-plant scale to produce n-butyl lactate","authors":"Cesar A. Garcia , Silvia Ochoa , Iván D. Gil , Argimiro R. Secchi","doi":"10.1016/j.cep.2024.110037","DOIUrl":"10.1016/j.cep.2024.110037","url":null,"abstract":"<div><div>This study presents a comprehensive phenomenological model for a pilot-plant scale reactive distillation column used in the production of n-butyl lactate, a green solvent with industrial potential. The model integrates reaction kinetics and thermodynamic equilibrium to address key challenges such as non-linearities and multiple steady states commonly observed in reactive distillation processes. The model was validated using three scenarios: (1) Isoamyl acetate production at pilot-plant scale, (2) n-butyl lactate production based on lab-scale data from literature, and (3) an <em>in silico</em> pilot-plant scale simulation of n-butyl lactate production. Sensitivity analysis confirmed the model’s robustness in predicting system behavior under various operating conditions. This work contributes to the optimization of green solvent production, offering insights into process stability and scalability for industrial applications. Future work will focus on the development of advanced control strategies for real-time optimization.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"207 ","pages":"Article 110037"},"PeriodicalIF":3.8,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704044","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}

引用次数: 0

A process intensification 4.0 approach to determine the feasibility and sustainability of producing biojet-fuel by alcohol to jet route. A case of study of Mexico

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2024-11-22 DOI: 10.1016/j.cep.2024.110078

David Vallejo-Blancas , Eduardo Sánchez-Ramirez , José María Ponce-Ortega , Juan Gabriel Segovia-Hernández , Juan José Quiroz Ramírez , Gabriel Contreras-Zarazúa

{"title":"A process intensification 4.0 approach to determine the feasibility and sustainability of producing biojet-fuel by alcohol to jet route. A case of study of Mexico","authors":"David Vallejo-Blancas , Eduardo Sánchez-Ramirez , José María Ponce-Ortega , Juan Gabriel Segovia-Hernández , Juan José Quiroz Ramírez , Gabriel Contreras-Zarazúa","doi":"10.1016/j.cep.2024.110078","DOIUrl":"10.1016/j.cep.2024.110078","url":null,"abstract":"<div><div>This paper explores the feasibility of producing biojet-fuel in Mexico using the Alcohol to Jet process as the base production technology. The work develops a mathematical model based on a process intensification 4.0 approach, which considers the modularization and decentralization of different parts of the process across various locations, with the aim of improving the sustainability of the process. Corn stover and sugarcane bagasse were considered as feedstocks. The mathematical model was formulated as a mixed-integer linear programming problem and solved through multi-objective optimization, focusing on maximizing net profit and social welfare while minimizing the environmental impact as measured by the Eco-indicator 99. This metrics evaluates economics, environmental and social issues. In addition, the generation of jobs calculated using the Jobs Economic Development Impact models and the CO<sub>2</sub> emission were calculated as complementary metrics. The optimal solution consists of a net profit of -$485 million USD/year, an Eco-Indicator 99 value of approximately 1.75 billion ecopoints/year, social welfare valued at 367.19, the creation of 15,488 jobs annually, and CO2 emissions of 2.2 kg CO2 per kg of products. This solution proposes replacing up to 6.43% of jet fuel with a hybrid system that includes four complete refineries and two pretreatment depots.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"208 ","pages":"Article 110078"},"PeriodicalIF":3.8,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748768","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}

引用次数: 0