Wenqiang Gao, Luisa F Posada, Vahid Shiravand, Shubhashish Shubhashish, Capri Price, Radislav A Potyrailo, Karim Younsi, Shiyao Shan, Ibrahima Ndiaye, Jierui Zhou, Andres Laso, Nenad Uzelac, Wesley Zhong, Steven L Suib, Yang Cao
{"title":"高通量 SF6 替代绝缘材料兼容性筛选。","authors":"Wenqiang Gao, Luisa F Posada, Vahid Shiravand, Shubhashish Shubhashish, Capri Price, Radislav A Potyrailo, Karim Younsi, Shiyao Shan, Ibrahima Ndiaye, Jierui Zhou, Andres Laso, Nenad Uzelac, Wesley Zhong, Steven L Suib, Yang Cao","doi":"10.1021/acs.est.4c03190","DOIUrl":null,"url":null,"abstract":"<p><p>With the annual global electricity production exceeding 30,000 TWh, the safe transmission of electric power has been heavily relying on SF<sub>6</sub>, the most potent industrial greenhouse gas. While promising SF<sub>6</sub> alternatives have been proposed, their compatibilities with materials used in gas-insulated equipment (GIE) must be thoroughly studied. This is particularly true as the emerging SF<sub>6</sub> alternatives generally leverage their relatively higher reactivity to achieve lower global warming potentials (GWPs). Here, a high-throughput compatibility screening of common GIE materials was conducted with a representative SF<sub>6</sub> alternative, namely, C<sub>4</sub>F<sub>7</sub>N (2,3,3,3-tetrafluoro-2-(trifluoromethyl)propanenitrile)/CO<sub>2</sub> gas mixtures. In this screening, the insulation performance of C<sub>4</sub>F<sub>7</sub>N/CO<sub>2</sub> gas mixtures, as an indicator of the C<sub>4</sub>F<sub>7</sub>N/materials compatibility level, was periodically monitored during the thermal aging with tens of materials from SF<sub>6</sub>-insulated GIE, including desiccants/adsorbents, rubber, plastics, composites, ceramics, metals, etc. The identification of incompatible materials and the follow-up mechanism studies suggested that the acidity of materials represents the primary cause for C<sub>4</sub>F<sub>7</sub>N/materials incompatibility when C<sub>4</sub>F<sub>7</sub>N/CO<sub>2</sub> gas mixtures are used as a drop-in replacement solution for existing SF<sub>6</sub>-insulated apparatuses. Mitigation strategies tackling the acidity of materials were then proposed and validated. Additionally, the amphoteric characteristics of C<sub>4</sub>F<sub>7</sub>N were briefly discussed. This work provides insight into the materials incompatibility of SF<sub>6</sub> alternatives, along with validated mitigation strategies, for the selection and design of materials used in future eco-friendly GIE.</p>","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":null,"pages":null},"PeriodicalIF":10.8000,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"High-Throughput Compatibility Screening of Materials for SF<sub>6</sub>-Alternative Insulation.\",\"authors\":\"Wenqiang Gao, Luisa F Posada, Vahid Shiravand, Shubhashish Shubhashish, Capri Price, Radislav A Potyrailo, Karim Younsi, Shiyao Shan, Ibrahima Ndiaye, Jierui Zhou, Andres Laso, Nenad Uzelac, Wesley Zhong, Steven L Suib, Yang Cao\",\"doi\":\"10.1021/acs.est.4c03190\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>With the annual global electricity production exceeding 30,000 TWh, the safe transmission of electric power has been heavily relying on SF<sub>6</sub>, the most potent industrial greenhouse gas. While promising SF<sub>6</sub> alternatives have been proposed, their compatibilities with materials used in gas-insulated equipment (GIE) must be thoroughly studied. This is particularly true as the emerging SF<sub>6</sub> alternatives generally leverage their relatively higher reactivity to achieve lower global warming potentials (GWPs). Here, a high-throughput compatibility screening of common GIE materials was conducted with a representative SF<sub>6</sub> alternative, namely, C<sub>4</sub>F<sub>7</sub>N (2,3,3,3-tetrafluoro-2-(trifluoromethyl)propanenitrile)/CO<sub>2</sub> gas mixtures. In this screening, the insulation performance of C<sub>4</sub>F<sub>7</sub>N/CO<sub>2</sub> gas mixtures, as an indicator of the C<sub>4</sub>F<sub>7</sub>N/materials compatibility level, was periodically monitored during the thermal aging with tens of materials from SF<sub>6</sub>-insulated GIE, including desiccants/adsorbents, rubber, plastics, composites, ceramics, metals, etc. The identification of incompatible materials and the follow-up mechanism studies suggested that the acidity of materials represents the primary cause for C<sub>4</sub>F<sub>7</sub>N/materials incompatibility when C<sub>4</sub>F<sub>7</sub>N/CO<sub>2</sub> gas mixtures are used as a drop-in replacement solution for existing SF<sub>6</sub>-insulated apparatuses. Mitigation strategies tackling the acidity of materials were then proposed and validated. Additionally, the amphoteric characteristics of C<sub>4</sub>F<sub>7</sub>N were briefly discussed. This work provides insight into the materials incompatibility of SF<sub>6</sub> alternatives, along with validated mitigation strategies, for the selection and design of materials used in future eco-friendly GIE.</p>\",\"PeriodicalId\":36,\"journal\":{\"name\":\"环境科学与技术\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":10.8000,\"publicationDate\":\"2024-07-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"环境科学与技术\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://doi.org/10.1021/acs.est.4c03190\",\"RegionNum\":1,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ENVIRONMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"环境科学与技术","FirstCategoryId":"1","ListUrlMain":"https://doi.org/10.1021/acs.est.4c03190","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
High-Throughput Compatibility Screening of Materials for SF6-Alternative Insulation.
With the annual global electricity production exceeding 30,000 TWh, the safe transmission of electric power has been heavily relying on SF6, the most potent industrial greenhouse gas. While promising SF6 alternatives have been proposed, their compatibilities with materials used in gas-insulated equipment (GIE) must be thoroughly studied. This is particularly true as the emerging SF6 alternatives generally leverage their relatively higher reactivity to achieve lower global warming potentials (GWPs). Here, a high-throughput compatibility screening of common GIE materials was conducted with a representative SF6 alternative, namely, C4F7N (2,3,3,3-tetrafluoro-2-(trifluoromethyl)propanenitrile)/CO2 gas mixtures. In this screening, the insulation performance of C4F7N/CO2 gas mixtures, as an indicator of the C4F7N/materials compatibility level, was periodically monitored during the thermal aging with tens of materials from SF6-insulated GIE, including desiccants/adsorbents, rubber, plastics, composites, ceramics, metals, etc. The identification of incompatible materials and the follow-up mechanism studies suggested that the acidity of materials represents the primary cause for C4F7N/materials incompatibility when C4F7N/CO2 gas mixtures are used as a drop-in replacement solution for existing SF6-insulated apparatuses. Mitigation strategies tackling the acidity of materials were then proposed and validated. Additionally, the amphoteric characteristics of C4F7N were briefly discussed. This work provides insight into the materials incompatibility of SF6 alternatives, along with validated mitigation strategies, for the selection and design of materials used in future eco-friendly GIE.
期刊介绍:
Environmental Science & Technology (ES&T) is a co-sponsored academic and technical magazine by the Hubei Provincial Environmental Protection Bureau and the Hubei Provincial Academy of Environmental Sciences.
Environmental Science & Technology (ES&T) holds the status of Chinese core journals, scientific papers source journals of China, Chinese Science Citation Database source journals, and Chinese Academic Journal Comprehensive Evaluation Database source journals. This publication focuses on the academic field of environmental protection, featuring articles related to environmental protection and technical advancements.