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Role of dynamic gravity in marinized multiphase packed bed applications 动态重力在海水化多相填料床应用中的作用
IF 8 2区 工程技术
Current Opinion in Chemical Engineering Pub Date : 2025-09-01 Epub Date: 2025-05-14 DOI: 10.1016/j.coche.2025.101143
Ion Iliuta, Faïçal Larachi
{"title":"Role of dynamic gravity in marinized multiphase packed bed applications","authors":"Ion Iliuta,&nbsp;Faïçal Larachi","doi":"10.1016/j.coche.2025.101143","DOIUrl":"10.1016/j.coche.2025.101143","url":null,"abstract":"<div><div>Innovative, energy-efficient technologies for the capture and conversion of CO<sub>2</sub> from marine emissions offer a promising path to reducing CO<sub>2</sub> emissions in a circular economy. This emerging research area envisions CO<sub>2</sub> capture and conversion in multiphase packed columns and trickle beds on ships and floating production, storage, and offloading units. However, the associated marine environments, characterized by instability and motions, such as tilting, rolling, and heaving, disrupt fluid dynamics, mass transfer, and reaction performance. This contribution examines recent advances in modeling fluid dynamics in (random/structured) packed columns and trickle beds under simulated marine conditions and highlights the role of dynamic gravity in these marinized multiphase packed bed applications. Using transient three-dimensional Computational Fluid Dynamics CFD modeling and simulation, this work explores the effects of tilt angle, heave, and roll motion parameters to quantitatively address the influence of changing sea/ocean conditions. It attempts to shed light on the design and operation of marine/offshore unit operations. Of particular interest is the study's focus on the multiphase flow hydrodynamics under dynamic gravitational forces (high to zero gravity in radial/azimuthal directions or high to low gravity in axial direction of porous medium), resulting in unique patterns, such as axial asymmetric two-phase flows and oscillatory two-phase flows.</div></div>","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"49 ","pages":"Article 101143"},"PeriodicalIF":8.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Solar energy–based sonophotocatalysis for intensified wastewater treatment 基于太阳能的声光催化强化废水处理
IF 8 2区 工程技术
Current Opinion in Chemical Engineering Pub Date : 2025-09-01 Epub Date: 2025-05-13 DOI: 10.1016/j.coche.2025.101145
Manisha V Bagal , Parag R Gogate
{"title":"Solar energy–based sonophotocatalysis for intensified wastewater treatment","authors":"Manisha V Bagal ,&nbsp;Parag R Gogate","doi":"10.1016/j.coche.2025.101145","DOIUrl":"10.1016/j.coche.2025.101145","url":null,"abstract":"<div><div>Sonophotocatalysis has gained attention recently for the effective treatment of wastewater, mainly based on the expected synergy from sonication and photocatalysis. The current work focuses on the guidelines related to the mechanisms for synergy, optimization of operating parameters, and reactor designs. The influence of operational parameters, including pH (acidic or alkaline conditions), pollutant concentration, catalyst loading, temperature, and irradiation duration, on degradation extent has been explained. In addition, the effect of reactor characteristics such as ultrasonic frequency and power has been discussed. A significantly higher synergistic pollutant removal has indeed been observed in sonophotocatalysis compared to conventional treatment methods. The incorporation of various doping materials and catalyst supports further enhances degradation efficiency. The expected advancement underscores the potential of sonophotocatalysis as a promising wastewater treatment technology, particularly for the effective elimination of recalcitrant organic contaminants. The review also presents the challenges of the current process and offers recommendations for its future expansion.</div></div>","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"49 ","pages":"Article 101145"},"PeriodicalIF":8.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Accurate model needs for desalination systems 海水淡化系统需要精确的模型
IF 8 2区 工程技术
Current Opinion in Chemical Engineering Pub Date : 2025-06-01 Epub Date: 2025-05-21 DOI: 10.1016/j.coche.2025.101147
Wajeha Tauqir , Pengfei Xu , George M Bollas , Matthew D Stuber
{"title":"Accurate model needs for desalination systems","authors":"Wajeha Tauqir ,&nbsp;Pengfei Xu ,&nbsp;George M Bollas ,&nbsp;Matthew D Stuber","doi":"10.1016/j.coche.2025.101147","DOIUrl":"10.1016/j.coche.2025.101147","url":null,"abstract":"<div><div>Modeling serves as the nexus connecting design, control, and optimization in desalination process systems while also providing insights into the interplay between process-level and property-level phenomena. Modeling desalination processes presents challenges due to the complex thermophysical properties and nonideality of multielectrolyte solutions, especially at high concentrations. In this mini-review, we examine the current state of several widely used process modeling tools, their features, and the adaptability to modeling state-of-the-art desalination process systems. We also discuss thermodynamic models of electrolyte solutions and their ability to accurately predict the thermodynamic properties of aqueous multielectrolyte solutions. We conclude that refining and tailoring fundamental thermodynamic models to address the complexities of high-concentration regimes is essential for the design of advanced desalination systems and achieving improvements in energetic and economic efficiencies.</div></div>","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"48 ","pages":"Article 101147"},"PeriodicalIF":8.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Understanding synthesis and degradation of backbone deconstructable (co)polymers by radical ring-opening polymerization through theoretical calculation and numerical simulation 通过理论计算和数值模拟了解自由基开环聚合法合成和降解主干可解构（co）聚合物
IF 8 2区 工程技术
Current Opinion in Chemical Engineering Pub Date : 2025-06-01 Epub Date: 2025-04-16 DOI: 10.1016/j.coche.2025.101131
Jin-Jin Li , Qi Luo , Yi-Xiang Lin , Zhenhao Xi , Ling Zhao
{"title":"Understanding synthesis and degradation of backbone deconstructable (co)polymers by radical ring-opening polymerization through theoretical calculation and numerical simulation","authors":"Jin-Jin Li ,&nbsp;Qi Luo ,&nbsp;Yi-Xiang Lin ,&nbsp;Zhenhao Xi ,&nbsp;Ling Zhao","doi":"10.1016/j.coche.2025.101131","DOIUrl":"10.1016/j.coche.2025.101131","url":null,"abstract":"<div><div>Radical ring-opening polymerization (<em>r</em>ROP) has gained widespread attention due to the facile incorporation of cleavable groups (e.g. ester, thioesters) into all-carbon backbone vinyl polymers. The inclusion of a cleavable comonomer makes the vinyl copolymers biodegradable. However, competition between the ring-opening of cyclic monomer and vinyl addition without ring-opening, as well as efficient insertion of cleavable comonomer into the backbone, are challenging for <em>r</em>ROP. This minireview discusses the latest developments in theoretical and numerical simulations of <em>r</em>ROP, offering deep insights into both polymerization and degradation processes, including mechanistic identification, kinetic features, and chain microstructure tuning. Besides, challenges and future directions are included to attract more efforts to better perform <em>r</em>ROP and deconstruction process.</div></div>","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"48 ","pages":"Article 101131"},"PeriodicalIF":8.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143838482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Tantalum nitride photoanodes: a promising future for photoelectrochemical water splitting? 氮化钽光阳极：光电化学水分解的前景？
IF 8 2区 工程技术
Current Opinion in Chemical Engineering Pub Date : 2025-06-01 Epub Date: 2025-04-09 DOI: 10.1016/j.coche.2025.101127
Mathieu Grandcolas , Annett Thøgersen , Ingeborg-Helene Svenum , Kevin Both , Athanasios Chatzitakis
{"title":"Tantalum nitride photoanodes: a promising future for photoelectrochemical water splitting?","authors":"Mathieu Grandcolas ,&nbsp;Annett Thøgersen ,&nbsp;Ingeborg-Helene Svenum ,&nbsp;Kevin Both ,&nbsp;Athanasios Chatzitakis","doi":"10.1016/j.coche.2025.101127","DOIUrl":"10.1016/j.coche.2025.101127","url":null,"abstract":"<div><div>Photoelectrochemical (PEC) water splitting is a promising method for sustainable hydrogen production. Among potential materials, tantalum nitride (Ta<sub>3</sub>N<sub>5</sub>) has emerged as a leading candidate due to its favorable band gap and high theoretical efficiency. This review highlights recent advancements in the synthesis, doping, and surface modification of Ta<sub>3</sub>N<sub>5</sub> photoanodes, which have enabled photocurrent densities approaching the material’s theoretical limit of 12.9 mA/cm² at 1.23 V vs. RHE. Despite these advancements, significant challenges remain, particularly in achieving long-term stability. We critically evaluate the feasibility of meeting the U.S. Department of Energy’s targets and provide insights into more achievable and realistic goals for PEC systems based on Ta<sub>3</sub>N<sub>5</sub>, focusing on efficiency, lifetime, and cost competitiveness.</div></div>","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"48 ","pages":"Article 101127"},"PeriodicalIF":8.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Updates on tracking charge carriers in BiVO4- and CuWO4-based photoanodes BiVO4和cuwo4基光阳极电荷载流子跟踪研究进展
IF 8 2区 工程技术
Current Opinion in Chemical Engineering Pub Date : 2025-06-01 Epub Date: 2025-04-28 DOI: 10.1016/j.coche.2025.101139
Ivan Grigioni, Gayathri Chellasamy, Annalisa Polo, Elena Selli, Maria Vittoria Dozzi
{"title":"Updates on tracking charge carriers in BiVO4- and CuWO4-based photoanodes","authors":"Ivan Grigioni,&nbsp;Gayathri Chellasamy,&nbsp;Annalisa Polo,&nbsp;Elena Selli,&nbsp;Maria Vittoria Dozzi","doi":"10.1016/j.coche.2025.101139","DOIUrl":"10.1016/j.coche.2025.101139","url":null,"abstract":"<div><div>Semiconductor ternary metal oxides (TMOs) are ideal candidates as photoanode materials for the water oxidation reaction. The dynamics of photogenerated charge carriers dictates the efficiency of photoelectrocatalytic (PEC) systems depending on both internal (inside the photoactive material) and surface (mainly due to reaction kinetics) key issues. This paper presents recent results attained with up-to-date characterization tools to decouple bulk and surface charge recombination in relation to the synthetic strategies implemented to address PEC efficiency losses in TMO photoanodes, with particular focus on BiVO<sub>4</sub>- and CuWO<sub>4</sub>-based materials. Key aspects and the perspectives in the field are finally highlighted.</div></div>","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"48 ","pages":"Article 101139"},"PeriodicalIF":8.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
HiGee process intensification in biorefineries: innovations, challenges, and outlook 生物炼制过程强化：创新、挑战与展望
IF 8 2区 工程技术
Current Opinion in Chemical Engineering Pub Date : 2025-06-01 Epub Date: 2025-03-27 DOI: 10.1016/j.coche.2025.101119
Kamelia Boodhoo, Fernando Russo Abegão
{"title":"HiGee process intensification in biorefineries: innovations, challenges, and outlook","authors":"Kamelia Boodhoo,&nbsp;Fernando Russo Abegão","doi":"10.1016/j.coche.2025.101119","DOIUrl":"10.1016/j.coche.2025.101119","url":null,"abstract":"<div><div>Biorefineries will play a crucial role in the circular and net-zero economies of the future. To enable these sustainable factories to thrive, it is essential to overcome processing challenges associated with streams complexity, variability, degree of dilution and stability of products, amongst others. Process intensification strategies based on centrifugal force fields or high gravity (HiGee) fields provide promising solutions for rapid heat and mass transfer in fast reactions and/or systems where mixing of fluids is challenging. The applications of HiGee intensification techniques to biorefining processes for oil and sugar solutions, multiphase systems using liquid–liquid or solid suspension streams and thermochemical processes amongst others are highlighted in this short review. The state of the art and the current technology successes and limitations are discussed, identifying key areas for future development and providing an outlook for industrial uptake.</div></div>","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"48 ","pages":"Article 101119"},"PeriodicalIF":8.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Membrane synthesis via thermally induced phase separation: quantifying the shift to a more sustainable design 通过热诱导相分离的膜合成：量化转向更可持续的设计
IF 8 2区 工程技术
Current Opinion in Chemical Engineering Pub Date : 2025-06-01 Epub Date: 2025-04-14 DOI: 10.1016/j.coche.2025.101130
Jason Stallings Jr, Endras Fadhilah, Malgorzata Chwatko
{"title":"Membrane synthesis via thermally induced phase separation: quantifying the shift to a more sustainable design","authors":"Jason Stallings Jr,&nbsp;Endras Fadhilah,&nbsp;Malgorzata Chwatko","doi":"10.1016/j.coche.2025.101130","DOIUrl":"10.1016/j.coche.2025.101130","url":null,"abstract":"<div><div>Thermally induced phase separation (TIPS) technique is often employed in membrane manufacturing to create highly porous relatively homogenous membranes. The technique generates porous materials due to a phase separation driven by crystallization or thermodynamic immiscibility. To maintain the use of the technique in the future, the solution chemistry needs to be re-examined to meet the sustainability metrics required for the next generation of membrane design and manufacturing. In this work, we examine TIPS process sustainability and metrics that could be used in future works on the topic.</div></div>","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"48 ","pages":"Article 101130"},"PeriodicalIF":8.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143826307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Analytical techniques for quantifying and identifying nanoplastics: recent advances 定量和鉴定纳米塑料的分析技术：最新进展
IF 8 2区 工程技术
Current Opinion in Chemical Engineering Pub Date : 2025-06-01 Epub Date: 2025-04-18 DOI: 10.1016/j.coche.2025.101134
Gabriel E De-la-Torre , Carolin Bapp , Ana D Forero-López , Sina Dobaradaran
{"title":"Analytical techniques for quantifying and identifying nanoplastics: recent advances","authors":"Gabriel E De-la-Torre ,&nbsp;Carolin Bapp ,&nbsp;Ana D Forero-López ,&nbsp;Sina Dobaradaran","doi":"10.1016/j.coche.2025.101134","DOIUrl":"10.1016/j.coche.2025.101134","url":null,"abstract":"<div><div>Nanoplastics (NPs), plastic particles smaller than 1 µm, have gained particular interest due to their ability to translocate across biological barriers. However, their quantification and identification across environmental matrices have proven to be a complex and significant challenge. As the literature on NPs continues to grow, we believe that it is imperative to provide a timely analysis and discussion of the latest advances. In this contribution, we will discuss the analytical techniques employed in the most recent studies on the quantification of NPs and provide analytical recommendations based on the latest developments in this line of research.</div></div>","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"48 ","pages":"Article 101134"},"PeriodicalIF":8.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143843900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Editorial overview: Advanced reduction processes for environmental applications 编辑概述：环境应用的先进还原工艺
IF 8 2区 工程技术
Current Opinion in Chemical Engineering Pub Date : 2025-06-01 Epub Date: 2025-05-12 DOI: 10.1016/j.coche.2025.101138
Irene Carra, Yang Deng, Hadas Mamane
{"title":"Editorial overview: Advanced reduction processes for environmental applications","authors":"Irene Carra,&nbsp;Yang Deng,&nbsp;Hadas Mamane","doi":"10.1016/j.coche.2025.101138","DOIUrl":"10.1016/j.coche.2025.101138","url":null,"abstract":"","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"48 ","pages":"Article 101138"},"PeriodicalIF":8.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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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