Current Opinion in Chemical Engineering最新文献_第4页

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 : 2025-05-14 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, 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":"2025-05-14","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

IF 8 2区工程技术

Current Opinion in Chemical Engineering Pub 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 , 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":"2025-05-13","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

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 : 2025-05-12 DOI: 10.1016/j.coche.2025.101138

Irene Carra, Yang Deng, Hadas Mamane

引用次数: 0

Intensified cavitation process for the pretreatment of microalgae: a mini review 强化空化工艺预处理微藻的研究进展

IF 8 2区工程技术

Current Opinion in Chemical Engineering Pub Date : 2025-05-06 DOI: 10.1016/j.coche.2025.101142

Husain A Sumeru , Fajriana S Nurrusyda , Nova Rachmadona , Kuan Shiong Khoo , Pau Loke Show

{"title":"Intensified cavitation process for the pretreatment of microalgae: a mini review","authors":"Husain A Sumeru , Fajriana S Nurrusyda , Nova Rachmadona , Kuan Shiong Khoo , Pau Loke Show","doi":"10.1016/j.coche.2025.101142","DOIUrl":"10.1016/j.coche.2025.101142","url":null,"abstract":"<div><div>Advancement of microalgae pretreatment is shifting toward scalable and cost-effective methodologies to exploit the composition of microalgae biomass. The phenomenon of cavitation demonstrates its potential in industrial processes and is now being harnessed as a pretreatment strategy in microalgae biorefinery. Cavitation techniques through ultrasonication and hydrodynamic cavitation have proven its potential at generating cavities whose implosions create shear stress capable of disrupting microalgae cell walls that increase the yield of bioactive compounds in microalgae biomass. Although this technology shows promising results in the bioprocess of microalgae biomass, the leap to commercialization is fraught with the cost-intensive process. Intensive processes involving optimizing energy efficiency, controlled cavitation, scaling-up technology, and ensuring high quality of extracted compounds remain key areas for further research. Resolving these issues is vital for integrating cavitation into microalgae biorefinery and unlocking various bioproduct development. This review aims to offer insight into the practical application of cavitation in microalgae biomass valorization. As research advances, the potential of cavitation applications will determine its viability as a sustainable industry-standard process.</div></div>","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"48 ","pages":"Article 101142"},"PeriodicalIF":8.0,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143911961","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

Advances in calculation of kinetic parameters in free-radical polymerization by data-driven methods 数据驱动法计算自由基聚合动力学参数的研究进展

IF 8 2区工程技术

Current Opinion in Chemical Engineering Pub Date : 2025-05-03 DOI: 10.1016/j.coche.2025.101141

Yajuan Shi , Fangyou Yan , Jie Jin , Zheng-Hong Luo , Yin-Ning Zhou

引用次数: 0

Industrialization of hydrodynamic cavitation in plant resource extraction 水动力空化在植物资源提取中的产业化研究

IF 8 2区工程技术

Current Opinion in Chemical Engineering Pub Date : 2025-05-02 DOI: 10.1016/j.coche.2025.101140

Francesco Meneguzzo, Federica Zabini

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 : 2025-04-28 DOI: 10.1016/j.coche.2025.101139

Ivan Grigioni, Gayathri Chellasamy, Annalisa Polo, Elena Selli, Maria Vittoria Dozzi

引用次数: 0

Editorial overview: Electrochemical energy conversion 编辑概述：电化学能量转换

IF 8 2区工程技术

Current Opinion in Chemical Engineering Pub Date : 2025-04-26 DOI: 10.1016/j.coche.2025.101137

Marta Costa Figueiredo , Thijs de Groot , Antoni Forner-Cuenca

引用次数: 0

Ultrasonic activation of persulfate for removal of aqueous pollutants: cavitational versus thermal mechanisms 超声活化过硫酸盐去除水中污染物：空化与热机制

IF 8 2区工程技术

Current Opinion in Chemical Engineering Pub Date : 2025-04-23 DOI: 10.1016/j.coche.2025.101136

Jongbok Choi , Dukyoung Lee , Younggyu Son

{"title":"Ultrasonic activation of persulfate for removal of aqueous pollutants: cavitational versus thermal mechanisms","authors":"Jongbok Choi , Dukyoung Lee , Younggyu Son","doi":"10.1016/j.coche.2025.101136","DOIUrl":"10.1016/j.coche.2025.101136","url":null,"abstract":"<div><div>Sulfate radicals have been extensively studied for application in advanced oxidation processes owing to their excellent oxidizing power and efficacy. Recently, ultrasound (US) technology has emerged as a promising method for activating persulfate (PS). This work provides a critical review of the removal efficiencies and pseudo-1st-order degradation rates in only-PS, only-US, and US/PS processes to clarify the ultrasonic activation mechanism in US/PS systems. Experimental data from 53 cases across 15 studies were analyzed, and synergistic effects were evaluated. In only-PS processes, significant activation below 40°C was rarely observed, with few exceptions. Although several researchers reported high synergistic effects in US/PS processes, most cases showed low or negligible synergistic effects. High synergistic effects were attributable to incomplete cooling systems, low pollutant concentrations, and high PS/pollutant ratios. Therefore, the ability of acoustic cavitation to activate PS without thermal activation induced by US attenuation below 40°C remains debatable.</div></div>","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"48 ","pages":"Article 101136"},"PeriodicalIF":8.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865031","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

Insights into the biodegradation and bioremediation of microplastics: mechanisms and analytical methods 洞察微塑料的生物降解和生物修复：机制和分析方法

IF 8 2区工程技术

Current Opinion in Chemical Engineering Pub Date : 2025-04-21 DOI: 10.1016/j.coche.2025.101133

Kanika Dogra , Manish Kumar , Nancy Ornelas-Soto , Abrahan Mora , Dibyendu Sarkar , Rangabhashiyam Selvasembian , Kanchan Deoli Bahukhandi , Jürgen Mahlknecht

引用次数: 0