Current Opinion in Chemical Engineering最新文献_第2页

A perspective on enhancing chemical alternative assessments by prioritizing conditions of use 通过确定使用条件的优先次序来加强化学品替代评估的观点

IF 6.8 2区工程技术

Current Opinion in Chemical Engineering Pub Date : 2025-08-19 DOI: 10.1016/j.coche.2025.101177

John D Chea, Michael A Gonzalez

{"title":"A perspective on enhancing chemical alternative assessments by prioritizing conditions of use","authors":"John D Chea, Michael A Gonzalez","doi":"10.1016/j.coche.2025.101177","DOIUrl":"10.1016/j.coche.2025.101177","url":null,"abstract":"<div><div>Alternative assessment (AA) for chemical substitution has traditionally been motivated by reducing hazards while minimizing exposure to toxic substances. However, this approach of AA can prematurely eliminate many potential candidate chemicals before considering their technical performance and role. This perspective paper proposes a paradigm shift to prioritize the primary functional requirements of a chemical's given application before adopting the safer and more economical alternative from a life cycle perspective, including raw material extraction and refinement, chemical synthesis, product manufacturing, conditions of use (CoU), and end-of-life management. The adoption of this approach is represented as a mixed-integer nonlinear programming problem, aiming to minimize the differences in the properties of the chemical of interest and the targeted value for a CoU, while considering safety, regulatory limits, and economic feasibility as constraints. If successfully implemented, practical replacements within the acceptable safety parameters set forth by regulatory and nonregulatory entities can be determined to address chemical substitution challenges.</div></div>","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"49 ","pages":"Article 101177"},"PeriodicalIF":6.8,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864109","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

Recent advancements in CO2 capture and storage using carbide slag waste: a review of technological and chemical innovations 利用电石渣废物捕获和储存二氧化碳的最新进展：技术和化学创新的回顾

IF 6.8 2区工程技术

Current Opinion in Chemical Engineering Pub Date : 2025-08-12 DOI: 10.1016/j.coche.2025.101169

Manisha Sukhraj Kothari, Ashraf Aly Hassan, Amr El-Dieb, Hilal El-Hassan

{"title":"Recent advancements in CO2 capture and storage using carbide slag waste: a review of technological and chemical innovations","authors":"Manisha Sukhraj Kothari, Ashraf Aly Hassan, Amr El-Dieb, Hilal El-Hassan","doi":"10.1016/j.coche.2025.101169","DOIUrl":"10.1016/j.coche.2025.101169","url":null,"abstract":"<div><div>The rapid industrial waste generation has heightened the environmental strain associated with its disposal. Carbide slag waste, a byproduct of acetylene gas production, is primarily composed of calcium hydroxide and poses significant environmental challenges due to its high volume and alkalinity. This review explores the valorization of carbide slag waste for CO<sub>2</sub> capture and storage, particularly via its applications in cyclic CO<sub>2</sub> capture and mineral carbonation. Scientific advancements in cyclic CO<sub>2</sub> capture capacity and stability with antisintering strategies and pelletization for industrial applications are highlighted. Furthermore, through a detailed analysis of various mineral carbonation studies, new technological and chemical innovations that enhance carbonation efficiency, reduce energy costs, improve reaction kinetics, and enable the production of high-value materials are summarized. Concisely, even though the utilization of carbide slag waste for CO<sub>2</sub> capture and conversion offers a sustainable pathway, it needs to be studied at a larger scale to evaluate its feasibility and associated challenges.</div></div>","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"49 ","pages":"Article 101169"},"PeriodicalIF":6.8,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144827331","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

Photocatalytic generation of hydrogen from a non-carbon source, ammonia in aqueous solutions 光催化从非碳源生成氢，水溶液中的氨

IF 6.8 2区工程技术

Current Opinion in Chemical Engineering Pub Date : 2025-08-06 DOI: 10.1016/j.coche.2025.101167

Laura Clarizia , Abdulaziz Al-Anazi , Changseok Han

引用次数: 0

Assessment of removal technologies for microplastics in surface waters and wastewaters 地表水和废水中微塑料去除技术的评价

IF 6.8 2区工程技术

Current Opinion in Chemical Engineering Pub Date : 2025-08-06 DOI: 10.1016/j.coche.2025.101170

Maryam Mallek , Damia Barcelo

{"title":"Assessment of removal technologies for microplastics in surface waters and wastewaters","authors":"Maryam Mallek , Damia Barcelo","doi":"10.1016/j.coche.2025.101170","DOIUrl":"10.1016/j.coche.2025.101170","url":null,"abstract":"<div><div>Microplastics and the even more elusive nanoplastics are now recognized as ubiquitous, persistent, and potentially toxic contaminants in surface waters and wastewaters. Despite growing attention, real-world mitigation remains limited. This critical review interrogates the performance, scalability, and lifecycle implications of the principal removal technologies reported between 2016 and 2025. Although the size-exclusion membranes remain the benchmark for absolute removal efficiency (>95% for MPs <0.5 µm), they incur the highest unit-energy demand and chronic fouling. High-affinity sorbents, including Zr-based metal–organic frameworks, graphene-oxide hybrids, and engineered biochars, achieve 90–97% removal at far lower energy input, yet their lifecycle viability hinges on closed-loop regeneration and avoidance of polymer desorption. Magnetic composites (e.g. Fe₃O₄-ZIF-8) deliver near-quantitative capture (∼98%) within minutes, but field-scale demonstrations and robust magnet-recovery protocols are still lacking. Coagulation and electrocoagulation offer the most cost-effective high-throughput solutions (77–98%) but shift the plastic burden into metal-rich sludges. Advanced oxidation processes uniquely mineralize plastics (≤98.4%) albeit at high reagent and energy cost, while nature-based strategies (microbial consortia, hyperthermophilic composting, constructed wetlands) deliver 40–90% removal over longer residence times and remain highly sensitive to environmental variability. Across all classes, nanoplastic (<100 nm) retention is the weakest link, underscoring the need for standardized detection, nanoscale-selective materials, and pilot-scale validation. To support effective implementation, we identify key research priorities, including fouling control, sorbent regeneration, sludge valorization, catalyst stability, and risk assessment, and propose an integrated treatment hierarchy that couples low-energy bulk removal with targeted polishing and safe end-of-life management.</div></div>","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"49 ","pages":"Article 101170"},"PeriodicalIF":6.8,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144780588","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

Plasma-modified biochar for energy and environmental sustainability 等离子体改性生物炭的能源和环境可持续性

IF 8 2区工程技术

Current Opinion in Chemical Engineering Pub Date : 2025-07-16 DOI: 10.1016/j.coche.2025.101166

Sachini Supunsala Senadheera , Xiangzhou Yuan , Baojun Yi , Seong Kyun Im , Yong Sik Ok

{"title":"Plasma-modified biochar for energy and environmental sustainability","authors":"Sachini Supunsala Senadheera , Xiangzhou Yuan , Baojun Yi , Seong Kyun Im , Yong Sik Ok","doi":"10.1016/j.coche.2025.101166","DOIUrl":"10.1016/j.coche.2025.101166","url":null,"abstract":"<div><div>Biochar has recently emerged as a sustainable material with broad applicability in energy storage, contaminant removal, and carbon capture. However, its performance in these domains is often limited by intrinsic surface properties, including porosity and the abundance of functional groups. Plasma treatment has emerged as a promising postsynthesis strategy to tailor biochar’s surface chemistry and morphology. This short review highlights recent advances in the use of plasma-modified biochar for electrochemical energy storage, pollutant adsorption, and CO₂ capture. In energy storage, plasma modification enhances capacitance particularly in activated biochar by increasing surface area and functional group density. For CO₂ capture, nitrogen doping via plasma processes significantly improves adsorption capacity by enhancing surface basicity and affinity toward CO₂ molecules. In contaminant remediation, plasma treatment introduces oxygen- and nitrogen-containing functional groups, increases hydrophilicity, and promotes the formation of surface defects and active sites, collectively improving adsorption of metals and organic pollutants. Despite these promising advancements, research on plasma-treated biochar remains in its early stages, particularly in the context of direct CO₂ capture, warranting further investigation. Overall, plasma modification offers a versatile, scalable route to enhance the physicochemical properties of biochar, positioning it as a multifunctional platform for environmental and energy-related applications.</div></div>","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"49 ","pages":"Article 101166"},"PeriodicalIF":8.0,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144634124","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

Systematic multiscale strategies for chemical process/product design 化工过程/产品设计的系统化多尺度策略

IF 8 2区工程技术

Current Opinion in Chemical Engineering Pub Date : 2025-06-23 DOI: 10.1016/j.coche.2025.101153

Mariano Martín, Sofía González-Núñez

引用次数: 0

Editorial overview: Kinetic models for radical polymerization and polymer recycling 编辑概述：自由基聚合和聚合物回收的动力学模型

IF 8 2区工程技术

Current Opinion in Chemical Engineering Pub Date : 2025-06-21 DOI: 10.1016/j.coche.2025.101164

Jie Jin, Yin-Ning Zhou, Zheng-Hong Luo

引用次数: 0

Electrochemical organic waste conversion: a route toward food security and a circular economy 电化学有机废物转化：实现粮食安全和循环经济的途径

IF 8 2区工程技术

Current Opinion in Chemical Engineering Pub Date : 2025-06-18 DOI: 10.1016/j.coche.2025.101156

Daniela Ferreira-Garcia , Suhail Haque , Ben Burke , Ariel L Furst , Gerardine G Botte

引用次数: 0

Intensified physical and chemical processing using cavitation: how far are we from commercial applications of hydrodynamic cavitation? 利用空化强化物理和化学处理：我们离水动力空化的商业应用还有多远？

IF 8 2区工程技术

Current Opinion in Chemical Engineering Pub Date : 2025-06-18 DOI: 10.1016/j.coche.2025.101154

Surya Teja Malkapuram, Shirish H Sonawane

{"title":"Intensified physical and chemical processing using cavitation: how far are we from commercial applications of hydrodynamic cavitation?","authors":"Surya Teja Malkapuram, Shirish H Sonawane","doi":"10.1016/j.coche.2025.101154","DOIUrl":"10.1016/j.coche.2025.101154","url":null,"abstract":"<div><div>Cavitation — the formation, growth, and subsequent violent collapse of bubbles in a liquid — arises from localized pressure drops that trigger either liquid vaporization or the expansion of dissolved gas nuclei. This review examines recent technological advancements in cavitation, assessing its detection and quantification methods. It highlights transformative HC applications in areas such as wastewater treatment (e.g. pollutant degradation via chemical processing) and material synthesis and processing (e.g. particle size control and cell wall disruption via physical effects). Existing pilot-scale implementations are also reviewed, with an emphasis on reactor design, operational parameters, and the pressing question: How close are we to widespread commercial deployment? Key challenges, including enhancing energy efficiency and developing robust scale-up strategies, are discussed in the context of bridging the gap between laboratory research and industrial practice. While significant progress has been made, continued research and development in these areas are essential to fully realize the commercial potential of cavitation.</div></div>","PeriodicalId":292,"journal":{"name":"Current Opinion in Chemical Engineering","volume":"49 ","pages":"Article 101154"},"PeriodicalIF":8.0,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144307244","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: Intensified physical and chemical processing 编辑概述：加强物理和化学处理

IF 8 2区工程技术

Current Opinion in Chemical Engineering Pub Date : 2025-06-13 DOI: 10.1016/j.coche.2025.101155

Parag Gogate , Sivakumar Manickam

引用次数: 0