Current Opinion in Chemical Engineering最新文献

英文中文

New advance in application research of high-gravity process intensification technology 高重力加工强化技术应用研究的新进展

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

Current Opinion in Chemical Engineering

Pub Date : 2024-11-16 DOI: 10.1016/j.coche.2024.101057

Jia-Min Lu , Yu-Gan Zhu , Yan-Bin Li , Guang-Wen Chu , Jian-Feng Chen

Process intensification (PI) has generated considerable interest as a potential avenue for sustainable and green development within the chemical industry. High gravity (HiGee) technology is regarded as a significant breakthrough in PI, as it has possessed the potential to increase the mass transfer rate by ∼1–3 orders of magnitude in comparison to conventional equipment. Rotating packed bed (RPB), as a classical HiGee apparatus, has been proven to have great advantages for application in various chemical engineering fields, for it can provide large contact area between phases, faster surface renewal rate and more homogeneous nucleation sites, and so on. As research on HiGee technology has become more advanced, it is necessary to collate the various studies on the application of HiGee technology in different fields systematically. This work mainly reviews the research progresses of HiGee technology in synthesis of chemicals, preparation of particles, and separation in recent 5 years. Specifically, the latest applications of HiGee technology under different demands and novel structures of RPB designed for various working conditions are presented. Finally, the opportunities and further research directions of the HiGee technology are proposed.

过程强化（PI）作为化工行业实现可持续绿色发展的潜在途径，已经引起了人们的极大兴趣。高重力（HiGee）技术被认为是 PI 的重大突破，因为与传统设备相比，它有可能将传质速率提高 1-3 个数量级。旋转填料床（RPB）作为一种经典的 HiGee 设备，已被证明在各种化学工程领域的应用中具有很大的优势，因为它可以提供较大的相间接触面积、更快的表面更新速率和更均匀的成核点等。随着 HiGee 技术研究的不断深入，有必要对不同领域应用 HiGee 技术的各种研究进行系统整理。本文主要综述了近五年来 HiGee 技术在化学品合成、颗粒制备和分离方面的研究进展。具体而言，介绍了 HiGee 技术在不同需求下的最新应用，以及针对各种工作条件设计的新型 RPB 结构。最后，提出了 HiGee 技术的机遇和进一步研究的方向。

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引用次数: 0

Distillation in high gravity chemical engineering 高比重化学工程中的蒸馏

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

Current Opinion in Chemical Engineering

Pub Date : 2024-11-12 DOI: 10.1016/j.coche.2024.101058

Guangquan Wang, Jianbing Ji

Distillation is the most widely used separation process in industry, typically carried out in large, tall columns that dominate the skylines of chemical facilities. High gravity technology (Higee) aims to enhance mass transfer through the application of high centrifugal forces, presenting a promising approach to significantly reduce the size of distillation columns. However, Higee has not yet been fully integrated into distillation processes. A key reason for this limited application is that Higee devices need to be customized to meet the specific requirements of distillation. This article introduces a generally preferred Higee structure designed for this purpose, taking into account several critical considerations, including liquid distribution, dynamic sealing, intermediate feeding, and multirotor configurations. Most importantly, to tackle the longstanding issue of variable flow cross-sections in traditional Higee devices, an innovative rotor design with constant vapor flow area was proposed. This rotor, combined with the advantageous features of the favorable Higee structure, will open up new opportunities for the application of Higee technology in distillation processes.

蒸馏是工业中应用最广泛的分离过程，通常在大型高塔中进行，这些高塔占据了化工设施的天际线。高重力技术（Higee）旨在通过应用高离心力来加强传质，为大幅缩小蒸馏塔的尺寸提供了一种可行的方法。然而，高重力技术尚未完全融入蒸馏工艺。应用有限的一个重要原因是，Higee 设备需要定制，以满足蒸馏的具体要求。本文介绍了为此设计的 Higee 结构，其中考虑到了几个关键因素，包括液体分布、动态密封、中间进料和多转子配置。最重要的是，为了解决传统 Higee 装置中存在已久的流动截面可变的问题，我们提出了一种具有恒定蒸汽流动面积的创新转子设计。这种转子与有利的 Higee 结构的优势特点相结合，将为 Higee 技术在蒸馏过程中的应用带来新的机遇。

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引用次数: 0

Gas–liquid and liquid–liquid vortex technology for process intensification 用于工艺强化的气液和液液涡流技术

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

Current Opinion in Chemical Engineering

Pub Date : 2024-10-31 DOI: 10.1016/j.coche.2024.101056

Afroditi Kourou, Siyuan Chen, Yi Ouyang

The quest for efficient, sustainable chemical processes drives the advancement of process intensification methods. This study evaluates vortex technology, which utilizes controlled, confined swirling flows to enhance mixing and mass and heat transfer, improving process efficiency. Its potential is assessed by examining its principles, design and optimization parameters, current and prospective applications, and challenges in scaling up and commercialization. It is particularly suited when enhanced efficiency in mixing, transport performance, and cavitation is required, especially in systems involving fast reactions, short residence times, and space constraints. Furthermore, it shows promise in developing compact and efficient contacting devices with reduced energy consumption.

对高效、可持续化学工艺的追求推动着工艺强化方法的进步。本研究对涡流技术进行了评估，该技术利用受控的封闭漩涡流来加强混合、传质和传热，从而提高工艺效率。通过研究其原理、设计和优化参数、当前和未来的应用，以及扩大规模和商业化方面的挑战，对其潜力进行了评估。当需要提高混合、传输性能和空化效率时，尤其是在涉及快速反应、短停留时间和空间限制的系统中，它尤为适用。此外，它还显示了开发能耗更低的紧凑型高效接触装置的前景。

引用次数: 0

Graphitic carbon nitride/bismuth-based Z-scheme heterojunctions for the photocatalytic removal of pharmaceuticals and personal care products — a review 用于光催化去除药物和个人护理产品的氮化石墨碳/铋基 Z 型异质结--综述

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

Current Opinion in Chemical Engineering

Pub Date : 2024-10-31 DOI: 10.1016/j.coche.2024.101054

Ayesha Javaid , Muhammad Imran , Manoj P Rayaroth , Xun Sun , Chongqing Wang , Grzegorz Boczkaj , Malwina Momotko

Z-scheme heterojunction in recent years is one of the most promising approaches in photocatalytic materials in solar light region for various environmental applications, including the removal of pharmaceuticals and personal care products (PPCPs). Integrating g-C₃N₄ and Bi-based semiconductors via Z-scheme is highly effective in providing efficient flow of charge carriers along with suitable redox sites. The g-C₃N₄/Bi-based photocatalysts were synthesized by hydrothermal, co-precipitation, co-calcination, solvothermal polycondensation, or ion exchange/photoreduction. Environmental pollutants, such as tetracycline, ofloxacin, ciprofloxacin, levofloxacin, cefixime, and carbamazepine, were degraded with efficiency exceeding 90%. The major reactive species identified in those Z-schemes were superoxide radicals, hydroxyl radicals, and electron-holes pair. Best processes revealed economically feasible with 700–800 kWh/m³ of electric energy per order (EEO). For solar light–driven processes, energy can be named as ‘free’ (sunlight), but EEO allows to compare new developments. In future studies, process economic aspect, effectiveness in case of real effluents, including high-salinity conditions and evaluation of photocatalysts stability, and metals leaching should be addressed.

近年来，Z-scheme 异质结是太阳光区光催化材料中最有前途的方法之一，可用于各种环境应用，包括去除药物和个人护理产品（PPCPs）。通过 Z 型方案将 g-C3N4 和铋基半导体整合在一起，可高效提供电荷载流子流和合适的氧化还原位点。g-C3N4/Bi 基光催化剂是通过水热法、共沉淀法、共煅烧法、溶热缩聚法或离子交换/光还原法合成的。四环素、氧氟沙星、环丙沙星、左氧氟沙星、头孢克肟和卡马西平等环境污染物的降解效率超过 90%。在这些 Z 方案中发现的主要反应物是超氧自由基、羟自由基和电子-空穴对。最佳工艺显示，每订单 700-800 千瓦时/立方米的电能（EEO）在经济上是可行的。对于太阳光驱动的工艺，能量可以被称为 "免费"（太阳光），但 EEO 可以用来比较新的开发成果。在今后的研究中，应考虑工艺的经济性、实际废水的有效性，包括高盐度条件和光催化剂稳定性评估以及金属沥滤。

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引用次数: 0

Photocatalytic materials for solar-driven hydrogen generation 用于太阳能制氢的光催化材料

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

Current Opinion in Chemical Engineering

Pub Date : 2024-10-24 DOI: 10.1016/j.coche.2024.101055

Yasser Vasseghian , Sang-Woo Joo , Jaebum Choo , Michael Badawi , Tejraj M Aminabhavi

A critical review is presented on the analysis of photocatalytic materials in hydrogen generation from solar energy covering the literature of the past 5 years. The materials covered include semiconductor metal oxides, perovskites, metal chalcogenides, metal-organic frameworks, graphitic carbon nitride, and plasmonic materials. The results are analyzed critically and reviewed with regard to their future trends in photocatalytic hydrogen generation from solar energy to identify promising new areas to stimulate research in this area.

本文对过去 5 年有关太阳能制氢的光催化材料进行了深入分析。涉及的材料包括半导体金属氧化物、过氧化物、金属瑀、金属有机框架、氮化石墨碳和等离子体材料。对这些成果进行了批判性分析，并就其在太阳能光催化制氢方面的未来趋势进行了评述，以确定有希望促进该领域研究的新领域。

引用次数: 0

Electrode engineering strategies to advance polymer electrolyte fuel cells — recent progress and opportunities 推进聚合物电解质燃料电池的电极工程战略--最新进展与机遇

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

Current Opinion in Chemical Engineering

Pub Date : 2024-10-23 DOI: 10.1016/j.coche.2024.101053

Rens J Horst , Antoni Forner-Cuenca

Porous electrodes — typically referred to as catalyst layers — are critical components in polymer electrolyte fuel cells and several electrochemical technologies, where they determine the performance, durability, and cost of the system. The electrodes are responsible for sustaining electrochemical reactions, delivering reactants and removing products, and providing electronic and ionic transport. Simultaneously providing these functions necessitates sophisticated control over material properties across multiple length scales, making electrode design an important field of research. Here, we review recent trends in electrode engineering with a focus on optimizing complex mass transport phenomena to advance polymer electrolyte fuel cells. We first describe approaches to produce hierarchically organized electrode structures. Then, we discuss methods to control the support morphology, followed by strategies to functionalize the support chemical composition. We then highlight emerging trends in ionomer engineering and conclude with recommendations for standardized testing and the need to assess the end-of-life performance of novel electrode structures.

多孔电极（通常称为催化剂层）是聚合物电解质燃料电池和多种电化学技术的关键部件，决定着系统的性能、耐用性和成本。电极负责维持电化学反应、输送反应物和去除产物，以及提供电子和离子传输。要同时实现这些功能，就必须在多个长度尺度上对材料特性进行精密控制，这使得电极设计成为一个重要的研究领域。在此，我们回顾了电极工程的最新趋势，重点是优化复杂的质量传输现象，以推动聚合物电解质燃料电池的发展。我们首先介绍了生产分层组织电极结构的方法。然后，我们讨论了控制支撑物形态的方法，接着介绍了使支撑物化学成分功能化的策略。然后，我们重点介绍了离子膜工程学的新趋势，最后提出了标准化测试的建议以及评估新型电极结构寿命终止性能的必要性。

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引用次数: 0

Intensified reactors for a paradigm shift in chemical processing: the case for spinning disc reactors 实现化学加工模式转变的强化反应器：旋转盘反应器案例

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

Current Opinion in Chemical Engineering

Pub Date : 2024-10-01 DOI: 10.1016/j.coche.2024.101052

Arnab Chaudhuri, John van der Schaaf

To transition from the current linear method of chemical manufacturing to a more sustainable and circular approach, a paradigm shift in processing methods is essential. In this perspective article, we explore the potential role of the spinning disc reactor (SDR) in shaping a future industry that relies on modular and distributed production methods. Three key areas are highlighted in particular: utilizing the reactor to intensify thermochemical reactions, the application of the SDR for separation processes, and the integration of alternative activation sources. In addition to reviewing recent advances in the field, we also provide a perspective on the ongoing as well as potential future research and development projects, which may help propel the SDR into a widely adopted industrial unit.

要从目前的线性化学制造方法过渡到更具可持续性的循环方法，加工方法的模式转变至关重要。在这篇视角文章中，我们探讨了纺丝圆盘反应器（SDR）在塑造依靠模块化和分布式生产方法的未来工业中的潜在作用。文章特别强调了三个关键领域：利用反应器强化热化学反应、将 SDR 应用于分离工艺以及整合替代活化源。除了回顾该领域的最新进展，我们还对正在进行的以及未来可能开展的研发项目进行了展望，这些项目可能有助于推动 SDR 成为一种广泛采用的工业装置。

引用次数: 0

Considerations for Big Data management in pharmaceutical manufacturing 制药业大数据管理的注意事项

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

Current Opinion in Chemical Engineering

Pub Date : 2024-09-28 DOI: 10.1016/j.coche.2024.101051

Jayanti Das , Adam C Fisher , Lisa Hughey , Thomas F O’Connor , Vidya Pai , Cinque Soto , John Wan

Big Data technologies are advancing the manufacturing of drug and biological products. Such technologies include innovative software and computational methods for data storage, mining, and analytics. Increasingly vast, complex data sets are being produced by advanced manufacturing processes and sensors for statistical analysis and decision-making. Implementing Big Data technologies, however, can introduce new challenges for organizations in areas of data generation, architecture, and security. Big Data management includes implementing robust storage, complex data integration, and state-of-the-art analysis software. Upholding data integrity and security might require designing a modernized risk-based framework plan for the organization. Once these challenges are successfully addressed, the incorporation of Big Data technologies into pharmaceutical manufacturing is expected to enable more efficient production, lower costs, and greater quality control, resulting in a stronger global pharmaceutical supply chain.

大数据技术正在推动药物和生物产品的生产。这些技术包括用于数据存储、挖掘和分析的创新软件和计算方法。先进的制造流程和传感器正在产生越来越庞大、复杂的数据集，用于统计分析和决策。然而，实施大数据技术会在数据生成、架构和安全方面给企业带来新的挑战。大数据管理包括实施强大的存储、复杂的数据集成和最先进的分析软件。维护数据完整性和安全性可能需要为组织设计一个现代化的基于风险的框架计划。一旦成功应对这些挑战，将大数据技术融入制药业有望提高生产效率、降低成本和加强质量控制，从而加强全球制药供应链。

引用次数: 0

Editorial overview: Model-based process design 编辑概览：基于模型的流程设计

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

Current Opinion in Chemical Engineering

Pub Date : 2024-09-02 DOI: 10.1016/j.coche.2024.101047

Xiang Zhang , Kai Sundmacher

引用次数: 0

Recent advances in ultrasonic cavitation technologies for emulsion preparation: a mini review 用于乳液制备的超声波空化技术的最新进展：微型综述

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

Current Opinion in Chemical Engineering

Pub Date : 2024-08-09 DOI: 10.1016/j.coche.2024.101046

Shirley Soon Lee Tiang , Liang Ee Low , Israq Ali , Lei Zhou , Bey-Hing Goh , Lai Ti Gew , Siah Ying Tang

Ultrasound remains a remarkable method to form emulsions for food and other applications (e.g. cosmetics and pharmaceuticals) due to its high efficiency, excellent emulsion stability, and cost-effectiveness. Nevertheless, conventional ultrasound equipment suffers from low sonication power or undesired acoustic wave distribution across a sonication medium at large-scale processing, rendering the need for innovative designs to address the aforementioned issues. This mini review aims to discuss the recent developments in designs and configurations of ultrasonic emulsification equipment to overcome these shortcomings. Additionally, patented ultrasonic designs are reviewed to disclose the commercial potential of current ultrasonic inventions. This work can help identify gaps in current ultrasonic inventions, which could inspire researchers on future research directions that could boost the advancements of the design of ultrasound reactors for emulsification to eventual commercialization.

超声波因其高效率、出色的乳液稳定性和成本效益，仍然是食品和其他应用（如化妆品和药品）中形成乳液的重要方法。然而，传统的超声设备在大规模加工时存在超声功率低或声波在超声介质上分布不均匀的问题，因此需要创新设计来解决上述问题。本微型综述旨在讨论克服这些缺点的超声乳化设备设计和配置的最新进展。此外，还回顾了已获专利的超声波设计，以揭示当前超声波发明的商业潜力。这项工作有助于找出当前超声波发明的不足之处，从而启发研究人员确定未来的研究方向，推动超声波乳化反应器设计的进步，最终实现商业化。

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