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Recent advances in plasma-based methane reforming for syngas production
IF 9.3 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Current Opinion in Green and Sustainable Chemistry
Pub Date : 2024-12-01 DOI: 10.1016/j.cogsc.2024.100981
Kaiyi Wang , Xuping Ren , Geyuan Yin , Erjiang Hu , Hao Zhang
Methane reforming, a pivotal process for converting the greenhouse gases CO2 and CH4 into valuable syngas, can be efficiently conducted using plasma technology at relatively low temperatures. This minireview highlights recent advancements in plasma-based methane reforming technologies, particularly dry reforming (DRM), with a focus on reaction performance, plasma-catalysis and carbon deposition. Microwave (MW) plasma-based DRM achieves high conversion, offers strong processing capabilities, and operates without the need for catalysts or electrodes, making it highly promising for industrial-scale applications. The integration of plasma with catalysts, especially in dielectric barrier discharge (DBD), significantly reduces the operation temperature of the DRM process. Bi-reforming (BRM) and tri-reforming of methane (TRM), which involve the addition of H2O and/or O2 to the dry reforming process, improve syngas quality by producing a more optimal H2/CO ratio close to 2. Meanwhile, these approaches significantly reduce the carbon deposition, enhancing reactor stability and extending its operational lifespan.
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引用次数: 0
Green ammonia synthesis technology that does not require H2 gas: Reaction technology and prospects for ammonia synthesis using H2O as a direct hydrogen source 无需 H2 气体的绿色合成氨技术：使用 H2O 作为直接氢源进行氨合成的反应技术和前景
IF 9.3 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Current Opinion in Green and Sustainable Chemistry
Pub Date : 2024-10-23 DOI: 10.1016/j.cogsc.2024.100980
Souma Yoshida, Yoshiyuki Takatsuji, Tetsuya Haruyama
The Haber–Bosch (HB) process, utilizing hydrogen and nitrogen gases as raw materials, dominates industrial ammonia production. Alternative synthetic methods also typically require hydrogen and significant energy input, often leading to CO2 emissions. This review examines hydrogen-gas-free ammonia synthesis methods. Various catalytic approaches, including plasma catalytic and catalytic electrochemical techniques, have been extensively studied. Additionally, increasing interest has emerged in “non-H2, non-catalytic ammonia synthesis reactions.” Finally, we discuss the potential of emerging green ammonia synthesis methods to address the challenges of existing techniques.
哈伯-博施（HB）工艺利用氢气和氮气作为原料，在工业合成氨生产中占主导地位。其他合成方法通常也需要氢气和大量能源投入，通常会导致二氧化碳排放。本综述探讨了无氢气合成氨的方法。各种催化方法，包括等离子催化和催化电化学技术，已得到广泛研究。此外，人们对 "非氢气、非催化氨合成反应 "的兴趣也与日俱增。最后，我们讨论了新兴绿色氨合成方法在应对现有技术挑战方面的潜力。
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引用次数: 0
Machine learning to support prospective life cycle assessment of emerging chemical technologies 机器学习支持新兴化学技术的前瞻性生命周期评估
IF 9.3 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Current Opinion in Green and Sustainable Chemistry
Pub Date : 2024-10-18 DOI: 10.1016/j.cogsc.2024.100979
C.F. Blanco , N. Pauliks , F. Donati , N. Engberg , J. Weber
Increasing calls for safer and more sustainable approaches to innovation in the chemical sector necessitate adapted methods for the environmental assessment of emerging chemical technologies. While these technologies are still in the research and development phase, gaining an early understanding of their potential implications is crucial for their eventual introduction into markets worldwide. Life Cycle Assessment (LCA) is a core tool which has been recently adapted for such purpose. Prospective LCA approaches aim to develop plausible future-oriented models which account for the evolution of factors both intrinsic and extrinsic to the technologies assessed. Such future-oriented models introduce many indeterminacies, which could, to some extent, be addressed by Machine Learning techniques. Recent demonstrations of such techniques in the context of prospective LCA, as well as promising avenues for further research, are critically discussed.
人们日益呼吁以更安全、更可持续的方式进行化学领域的创新，这就需要对新兴化学技术的环境评估方法进行调整。虽然这些技术仍处于研发阶段，但尽早了解它们的潜在影响对最终进入全球市场至关重要。生命周期评估（LCA）是一种核心工具，最近已为此目的进行了调整。前瞻性生命周期评估方法旨在开发面向未来的合理模型，其中考虑到被评估技术的内在和外在因素的演变。这种面向未来的模型引入了许多不确定性，在一定程度上可以通过机器学习技术来解决。本文批判性地讨论了此类技术在未来生命周期评估中的最新应用，以及进一步研究的前景。
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引用次数: 0
Plasma treating water for nitrate based nitrogen fertilizer - A review of recent device designs 等离子体处理硝酸盐氮肥用水--最新装置设计回顾
IF 9.3 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Current Opinion in Green and Sustainable Chemistry
Pub Date : 2024-10-15 DOI: 10.1016/j.cogsc.2024.100978
C. Robinson, K. Stapelmann
Atmospheric pressure air plasma treatment of water is a promising alternative to the industrially intensive Haber-Bosch process for the production of nitrogen fertilizer. Nitrogen fertilizer is vital for plant life, and the environmental impacts of modern fertilizer application cannot be neglected. In order to maintain or increase food production in the future, more sustainable alternatives must be investigated. Plasma can be easily operated at smaller scales, onsite, utilizing green energy sources, cutting down transportation costs and impacts. This article focuses on nitrogen fixation by plasma treating water for use as nitrogen fertilizer. We highlight recent advances (within the last two years) regarding water treating plasma devices, the challenges still facing the field, and recommend more thorough collaborative investigations be carried out in order to focus on the design and optimization of these devices for the future.
对水进行常压空气等离子处理是一种很有前途的氮肥生产工艺，可替代工业密集型哈伯-博施工艺。氮肥对植物生命至关重要，现代肥料施用对环境的影响不容忽视。为了保持或增加未来的粮食产量，必须研究更具可持续性的替代方法。等离子体可以很容易地在较小的范围内现场操作，利用绿色能源，减少运输成本和影响。本文重点介绍等离子体处理水作为氮肥的固氮作用。我们重点介绍了水处理等离子体设备的最新进展（近两年）、该领域仍然面临的挑战，并建议开展更深入的合作研究，以便在未来重点关注这些设备的设计和优化。
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引用次数: 0
The Chemical sector in transition: Technological developments and green skills towards circularity and decarbonisation 转型中的化工行业：实现循环和脱碳的技术发展和绿色技能
IF 9.3 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Current Opinion in Green and Sustainable Chemistry
Pub Date : 2024-10-10 DOI: 10.1016/j.cogsc.2024.100976
Elisa Chioatto , Susanna Mancinelli , Massimiliano Mazzanti , Fabiola Onofrio
The chemical sector is integral to various industries but significantly contributes to environmental pollution and social impacts. Innovation is crucial in addressing challenges such as developing renewable energy storage materials, clean hydrogen production, and infinitely recyclable polymers. Additionally, the shift towards a sustainable chemical industry requires a skilled workforce proficient in sustainable and digital technologies. This paper explores the transition from linear production methods to a Circular Economy in the chemical industry through a literature review of recent publications (2022–2024). Six key papers have been identified that focus on the role of innovation and training in the green transition of the chemical sector. The findings highlight significant progress while outlining the remaining challenges in achieving a sustainable and environmentally friendly chemical industry.
化工行业是各行各业不可或缺的一部分，但也对环境污染和社会影响产生了重大影响。创新对于应对挑战至关重要，例如开发可再生能源储存材料、清洁制氢和无限可回收聚合物。此外，向可持续化工业转变需要一支精通可持续技术和数字技术的熟练劳动力队伍。本文通过对近期出版物（2022-2024 年）的文献综述，探讨了化工行业从线性生产方式向循环经济的转变。本文确定了六篇重要文献，重点关注创新和培训在化工行业绿色转型中的作用。研究结果强调了取得的重大进展，同时概述了在实现可持续和环境友好型化工行业方面仍然存在的挑战。
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引用次数: 0
Atmospheric-pressure plasmas for NOx production: Short review on current status 用于氮氧化物生产的常压等离子体：现状简评
IF 9.3 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Current Opinion in Green and Sustainable Chemistry
Pub Date : 2024-10-10 DOI: 10.1016/j.cogsc.2024.100977
Ayman A. Abdelaziz , Atsushi Komuro , Yoshiyuki Teramoto , Milko Schiorlin , Dae-Yeong Kim , Tomohiro Nozaki , Hyun-Ha Kim
Electricity-based chemical conversion is now recognized as a crucial technology for strengthening renewable energy in the pursuit of carbon neutrality. Atmospheric pressure plasmas have potential for nitrogen fixation when coupled with renewable energy, due to their ease of startup and shutdown, as well as their ability to adapt quickly to changing operating parameters. This short review highlights the plasma-based NOx formation, with a particular focus on advancements in NOx yield and energy cost over the past five years. Warm plasmas have demonstrated greater effectiveness than nonthermal plasmas in NOx production. Recent improvements in NOx yield and energy efficiency are discussed, along with a future outlook on their potential in power-to-X applications.
以电力为基础的化学转换现已被公认为是加强可再生能源以实现碳中和的关键技术。由于大气压力等离子体易于启动和关闭，并且能够快速适应不断变化的操作参数，因此在与可再生能源结合使用时具有固氮的潜力。这篇简短的综述重点介绍了基于等离子体的氮氧化物形成，尤其关注过去五年中氮氧化物产量和能源成本方面的进步。在氮氧化物生成方面，温等离子体比非温等离子体更有效。本文讨论了最近在氮氧化物产量和能效方面的改进，并展望了其在功率对X应用中的潜力。
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引用次数: 0
Conversion and valorization of tropical macroalgae 热带大型藻类的转化和增值
IF 9.3 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Current Opinion in Green and Sustainable Chemistry
Pub Date : 2024-10-09 DOI: 10.1016/j.cogsc.2024.100975
Valérie Jeanne-Rose, Francesca Goudou-Rosnel, Yeray Alvarez, Christelle Yacou, Sarra Gaspard
Macroalgae, as well as carbonaceous materials prepared from them, offer several promising avenues for pollution control and environmental remediation purposes. Such macroalgae can be used in wastewater treatment processes to remove pollutants such as heavy metals or organic compounds. Sargassum spp., a well-known tropical macroalgae, which are very abundant due to frequent beaching on the coastlines of the Caribbean, Florida, and the Gulf of Mexico during the last 12 years, represents a high number of available resources. They can be used as precursors for the synthesis of biochars and activated carbons, not only for pollutant removal from water but also for pollutant sequestration in soils. To optimize biomass valorization, carbonaceous materials can also be produced within the algae biorefinery process. The use of molecular modeling is proposed as a potential strategy for the greening of adsorption processes studies, allowing for the prediction and understanding of adsorption mechanisms.
大型藻类以及由其制备的碳质材料为污染控制和环境修复提供了多种前景广阔的途径。这类大型藻类可用于废水处理过程，去除重金属或有机化合物等污染物。马尾藻属是一种著名的热带大型藻类，在过去 12 年里，由于加勒比海、佛罗里达和墨西哥湾海岸线上经常出现滩涂，马尾藻属的资源非常丰富。它们可用作合成生物炭和活性炭的前体，不仅可用于去除水中的污染物，还可用于土壤中的污染物封存。为了优化生物质的价值，还可以在藻类生物精炼过程中生产碳质材料。建议使用分子建模作为绿色吸附过程研究的潜在战略，以便预测和了解吸附机制。
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引用次数: 0
Life cycle sustainability assessment for sustainable energy future: A short review on opportunity and challenge 可持续能源未来的生命周期可持续性评估：机遇与挑战简评
IF 9.3 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Current Opinion in Green and Sustainable Chemistry
Pub Date : 2024-10-03 DOI: 10.1016/j.cogsc.2024.100974
Changgwon Choe , Jong Ah Moon , Jiwon Gu , Aejin Lee , Hankwon Lim
Sustainable development is one of the important concerns for organizational growth. Sustainability is described as “the ability to continuously maintain a process over time.” This concept includes the three kinds of dimensions in the aspects of society, economy, and environment. Life cycle sustainability assessment is a crucial tool for analyzing the sustainability of products, services, or processes, and it can help accelerate sustainable development. Life cycle sustainability assessment is the integrative analysis tool used to evaluate the impacts of society, economy, and environment of concerns in its life cycle. In this short review, we briefly introduce the methodology of life cycle sustainability assessment and review the application of life cycle sustainability assessment focusing on the sustainable energy future. For sustainable development, this framework may help to support the decision-making of products throughout the whole life cycle.
可持续发展是组织发展的重要关注点之一。可持续发展被描述为 "随着时间的推移不断维持一个过程的能力"。这一概念包括社会、经济和环境三个方面。生命周期可持续性评估是分析产品、服务或流程可持续性的重要工具，有助于加快可持续发展。生命周期可持续发展评估是一种综合分析工具，用于评估生命周期内相关问题对社会、经济和环境的影响。在这篇短文中，我们简要介绍了生命周期可持续性评估的方法，并回顾了生命周期可持续性评估在未来可持续能源领域的应用。对于可持续发展而言，这一框架有助于支持产品在整个生命周期内的决策。
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引用次数: 0
Plasma-based conversion of methane into hydrogen and carbon black 等离子体将甲烷转化为氢气和炭黑
IF 9.3 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Current Opinion in Green and Sustainable Chemistry
Pub Date : 2024-09-26 DOI: 10.1016/j.cogsc.2024.100973
L. Fulcheri , E. Dames , V. Rohani
This short review presents recent findings on plasma-based pyrolysis of methane into hydrogen and carbon black. After a brief introduction stating the advantages of plasma methane pyrolysis, a discussion on the state of the art is given for different plasma technologies.
这篇简短的综述介绍了基于等离子体的甲烷热解成氢气和炭黑的最新研究成果。在简要介绍了等离子体甲烷热解技术的优势之后，讨论了不同等离子体技术的最新进展。
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引用次数: 0
A comprehensive review on marine by-products use for the recovery of value-added products 关于利用海洋副产品回收增值产品的全面审查
IF 9.3 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Current Opinion in Green and Sustainable Chemistry
Pub Date : 2024-09-25 DOI: 10.1016/j.cogsc.2024.100972
H. Mkadem, A. Kaanane
The research on valorizing marine by-products has gained momentum over the past few years due to the limited marine resources and the increasing demand for sustainable sources of functional, nutritional ingredients and biomaterials. Two mean valorization approaches are distinguished in the use of marine by-products: the massive production of fishmeal and fish oil for feed, primarily through the wet reduction process and the new trends of producing high-value bioactive compounds with developed technologies, such as protein hydrolysates, gelatin and collagen, chitin and chitosan, hydroxyapatite, astaxanthin, biofuels, and minerals. This review aims to provide a summary of the bioactive compounds derived from marine by-products, their properties and the various conventional and new technologies used for their valorization over the past two years. The review is organized into four sections that present the valorization of by-products according to four primary marine categories: fish, crustaceans, cephalopods, and bivalves.
由于海洋资源有限，以及对可持续的功能性营养成分和生物材料来源的需求日益增长，海洋副产品的增值研究在过去几年中获得了迅猛发展。在利用海洋副产品方面，有两种不同的价值评估方法：主要通过湿法还原工艺大量生产饲料用鱼粉和鱼油，以及利用开发的技术生产高价值生物活性化合物的新趋势，如蛋白质水解物、明胶和胶原蛋白、甲壳素和壳聚糖、羟基磷灰石、虾青素、生物燃料和矿物质。本综述旨在概述从海洋副产品中提取的生物活性化合物、其特性以及过去两年中用于其价值化的各种传统和新技术。综述分为四个部分，按照鱼类、甲壳类、头足类和双壳类四个主要海洋类别介绍了副产品的价值化。
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