Current Opinion in Chemical Engineering最新文献

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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 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Current Opinion in Chemical Engineering

Pub Date : 2025-09-01 Epub Date: 2025-06-13 DOI: 10.1016/j.coche.2025.101155

Parag Gogate , Sivakumar Manickam

引用次数: 0

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 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Current Opinion in Chemical Engineering

Pub Date : 2025-09-01 Epub Date: 2025-08-19 DOI: 10.1016/j.coche.2025.101177

John D Chea, Michael A Gonzalez

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.

化学替代的替代评估（AA）传统上的动机是减少危害，同时尽量减少接触有毒物质。然而，这种AA方法可能会在考虑其技术性能和作用之前过早地排除许多潜在的候选化学品。这篇前瞻性的论文提出了一种范式转变，从生命周期的角度出发，在采用更安全、更经济的替代方案之前，优先考虑化学品给定应用的主要功能需求，包括原材料提取和精炼、化学合成、产品制造、使用条件（CoU）和生命周期结束管理。采用这种方法被表示为一个混合整数非线性规划问题，旨在将感兴趣的化学物质的性质与CoU的目标值之间的差异最小化，同时考虑安全性、监管限制和经济可行性作为约束。如果成功实施，可以确定在监管和非监管实体规定的可接受安全参数范围内的实际替代品，以解决化学替代品的挑战。

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引用次数: 0

Role of cathode materials and their advancement for sustainable hydrogen evolution reaction in microbial electrolysis cells 正极材料在微生物电解池持续析氢反应中的作用及其进展

IF 6.8 2区工程技术 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Current Opinion in Chemical Engineering

Pub Date : 2025-09-01 Epub Date: 2025-08-25 DOI: 10.1016/j.coche.2025.101176

Sneha Prakash Naik , Omprakash Sarkar , Velvizhi Gokuladoss , Leonidas Matsakas , Gunda Mohanakrishna

Microbial electrolysis cells (MECs) offers a sustainable route for hydrogen production by decarbonizing global energy demands via transformation of biogenic waste/wastewater. Leveraging microbial metabolism, MECs contribute to the waste-to-energy nexus. The efficiency of MECs is significantly influenced by selection of electrode materials such as platinum, nickel, and stainless steel, which enhance the performance through their high surface area, chemical resilience, and effective hydrogen evolution reaction. MECs have been shown to generate 853 H₂/m³/d using graphite brush (anode) and Pt-loaded carbon cloth (cathode). MECs were upgraded to 1000 l, having 24 modules with 144 electrode pairs. Key features of cathode materials and its advancements used in MECs are discussed in this review.

微生物电解电池（MECs）通过转化生物废物/废水来脱碳全球能源需求，为制氢提供了一条可持续的途径。利用微生物代谢，mec有助于废物转化为能源。电极材料的选择对mec的效率有显著影响，如铂、镍和不锈钢，这些电极材料通过其高表面积、化学回弹性和有效的析氢反应来提高性能。使用石墨刷（阳极）和负载pt的碳布（阴极），mec可以产生853 H2/m³/d。mec升级到1000 l，有24个模块，144个电极对。本文综述了阴极材料的主要特点及其在mec中的应用进展。

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 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Current Opinion in Chemical Engineering

Pub Date : 2025-09-01 Epub Date: 2025-06-18 DOI: 10.1016/j.coche.2025.101154

Surya Teja Malkapuram, Shirish H Sonawane

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.

空化——液体中气泡的形成、增长和随后的剧烈破裂——是由局部压降引起的，压降触发液体蒸发或溶解气体核的膨胀。本文综述了空化的最新技术进展，评估了空化的检测和量化方法。它强调了HC在废水处理（例如通过化学处理的污染物降解）和材料合成和加工（例如通过物理效应的粒度控制和细胞壁破坏）等领域的变革性应用。现有的试点规模的实施也进行了审查，重点是反应堆的设计，操作参数，以及紧迫的问题：我们离广泛的商业部署还有多远？在弥合实验室研究和工业实践之间的差距的背景下，讨论了主要挑战，包括提高能源效率和制定强有力的规模扩大战略。虽然已经取得了重大进展，但这些领域的持续研究和开发对于充分实现空化的商业潜力至关重要。

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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 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Current Opinion in Chemical Engineering

Pub Date : 2025-09-01 Epub Date: 2025-06-23 DOI: 10.1016/j.coche.2025.101153

Mariano Martín, Sofía González-Núñez

The paradigm of process and product design represents the core problem for the current chemical industry. It corresponds to a multiscale problem, from the molecule to the process that uses it to produce power, recovers it as a valuable product or from the molecules that represent the ingredients to the supply chain toward the sustainable production of consumer goods. The problem requires a systematic approach to reduce the time to market. Mathematical optimization and advanced machine learning are powerful techniques for a robust problem formulation. However, problem size and complexity call for novel procedures and algorithms are required.

过程和产品设计范式代表了当前化工行业的核心问题。它对应于一个多尺度的问题，从分子到使用它产生能量的过程，将其作为有价值的产品回收，或者从代表成分的分子到供应链到消费品的可持续生产。这个问题需要一个系统的方法来缩短上市时间。数学优化和先进的机器学习是鲁棒问题表述的强大技术。然而，问题的规模和复杂性要求新的程序和算法。

引用次数: 0

Hydrogen production by photocatalytic dehydrogenation of formic acid 甲酸光催化脱氢制氢

IF 6.8 2区工程技术 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Current Opinion in Chemical Engineering

Pub Date : 2025-09-01 Epub Date: 2025-08-21 DOI: 10.1016/j.coche.2025.101175

Laura Valenzuela , Zahraa Abou Khalil , Agnieszka M. Ruppert , Marco Daturi , Mohammad El-Roz , Nicolas Keller

This mini-review updates the most significant recent advances in the promising field of hydrogen production via photocatalytic dehydrogenation of formic acid. The focus is on utilizing formic acid both as a liquid organic hydrogen carrier and as an effective internal hydrogen source for driving hydrogenation reactions. We present a subjective overview of key developments from the past 3 years in both aqueous- and gas-phase reactions, as well as in the rapidly evolving field of dual-mode photonic/thermal catalysis. Particular attention is given to insights into reaction mechanisms through operando FTIR studies, which allow for the direct observation of surface intermediates and the elucidation of possible reaction pathways.

本文简要介绍了甲酸光催化脱氢制氢的最新进展。重点是利用甲酸既作为液态有机氢载体，又作为驱动氢化反应的有效内部氢源。我们对过去三年来在水相和气相反应以及快速发展的双模光子/热催化领域的关键发展进行了主观概述。特别注意的是，通过operando FTIR研究，可以直接观察表面中间体和阐明可能的反应途径，从而深入了解反应机制。

引用次数: 0

Reduction in solvent and chemical use for membrane manufacturing using electrospray 减少溶剂和化学品使用的膜制造使用电喷雾

IF 6.8 2区工程技术 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Current Opinion in Chemical Engineering

Pub Date : 2025-09-01 Epub Date: 2025-08-20 DOI: 10.1016/j.coche.2025.101173

Salman Ahmadipouya , Usama J Sheikh , Noah Ferguson , Mert C Hacifazlioglu , Deniz Ipekci , Jeffrey R McCutcheon

Electrospray (ES) has recently emerged as a new technique for synthesizing and potentially manufacturing membranes at scale. While touted for its ability to make membranes from a variety of materials, the process also requires little solvent and polymer material. This study highlights the advantages of ES over conventional solution processing methods (at the lab scale) in reducing solvent and chemical consumption. When compared to conventional processes, ES laboratory scale fabrication of liquid and gas separations membranes yielded reductions in solvent and polymer material use on a per-area basis by anywhere from 50 to more than 90%.

电喷雾（ES）是近年来出现的一种合成和大规模生产膜的新技术。虽然这种方法可以用多种材料制造膜，但它只需要很少的溶剂和聚合物材料。这项研究强调了ES在减少溶剂和化学品消耗方面比传统溶液处理方法（在实验室规模上）的优势。与传统工艺相比，ES实验室规模制造的液体和气体分离膜在每个区域的溶剂和聚合物材料使用量减少了50%到90%以上。

引用次数: 0

Erratum to “Photogenerated charge carriers in photocatalytic materials for solar hydrogen evolution” [Curr Opin Chem Eng 47 (2025) 1087] “太阳能析氢光催化材料中的光生载流子”的勘误[当代化学工程47 (2025)1087]

IF 8 2区工程技术 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Current Opinion in Chemical Engineering

Pub Date : 2025-09-01 Epub Date: 2025-06-07 DOI: 10.1016/j.coche.2025.101149

Nguyên Hoàng Ly , Lalitha Gnanasekaran , Tejraj M Aminabhavi , Yasser Vasseghian , Sang-Woo Joo

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 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Current Opinion in Chemical Engineering

Pub Date : 2025-09-01 Epub Date: 2025-08-12 DOI: 10.1016/j.coche.2025.101169

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

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 CO₂ capture and storage, particularly via its applications in cyclic CO₂ capture and mineral carbonation. Scientific advancements in cyclic CO₂ 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 CO₂ capture and conversion offers a sustainable pathway, it needs to be studied at a larger scale to evaluate its feasibility and associated challenges.

工业废物的迅速产生加剧了与其处置有关的环境压力。电石渣废物是乙炔气生产的副产品，主要由氢氧化钙组成，由于其体积大和碱度，对环境构成了重大挑战。本文综述了电石渣在CO2捕集与封存中的应用，重点介绍了电石渣在循环CO2捕集和矿物碳化中的应用。在循环二氧化碳捕获能力和稳定性与反烧结策略和球团工业应用的科学进展突出。此外，通过对各种矿物碳酸化研究的详细分析，总结了提高碳酸化效率、降低能源成本、改善反应动力学和生产高价值材料的新技术和化学创新。简而言之，尽管利用电石渣废物进行二氧化碳捕获和转化提供了一个可持续的途径，但需要在更大的范围内进行研究，以评估其可行性和相关挑战。

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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 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Current Opinion in Chemical Engineering

Pub Date : 2025-09-01 Epub Date: 2025-08-06 DOI: 10.1016/j.coche.2025.101167

Laura Clarizia , Abdulaziz Al-Anazi , Changseok Han

This review investigates hydrogen production via photocatalysis using ammonia, a carbon-free source potentially present in wastewater. Photocatalysis offers low energy requirements and high conversion efficiency compared to electrocatalysis, thermocatalysis, and plasma catalysis. However, challenges such as complex material synthesis, low stability, spectral inefficiency, high costs, and integration barriers hinder industrial scalability. The review addresses thermodynamic requirements, reaction mechanisms, and the role of pH in optimizing photocatalysis. By leveraging ammonia’s potential and advancing photocatalyst development, this study provides a framework for scalable, sustainable hydrogen production and simultaneous ammonia decomposition, paving the way for innovative energy solutions and wastewater management.

本文综述了利用废水中可能存在的无碳源氨进行光催化制氢的研究。与电催化、热催化和等离子体催化相比，光催化的能量需求低，转化效率高。然而，复杂的材料合成、低稳定性、光谱效率低下、高成本和集成障碍等挑战阻碍了工业可扩展性。本文综述了热力学要求、反应机理以及pH在优化光催化中的作用。通过利用氨的潜力和推进光催化剂的发展，本研究提供了一个可扩展的、可持续的制氢和同步氨分解的框架，为创新的能源解决方案和废水管理铺平了道路。

引用次数: 0

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