五种吸附剂与C4F7N气体及CF3SO2F气体的相容性试验研究

doi:10.19595/j.cnki.1000-6753.tces.L10103

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Abstract SF₆ is an advantageous insulation gas that is widely applied in electrical equipment all over the world. However, the high global warming potential (GWP) it possesses prevents it from continuous application due to environment-friendly targets. In this circumstance, a variety of environment-friendly insulation gases have entered the field of view of researchers. Perfluoroisobutyronitrile (C₄F₇N) and trifluoromethylsulfonyl fluoride (CF₃SO₂F) are two novel environment-friendly gases replacing SF₆. Researchers have conducted a bunch of studies to test the dielectric properties and other properties of two gases by different methods. To promote the use of environment-friendly gases in industrial applications, it is necessary to study the compatibility between environment-friendly gases and common adsorbents in electrical equipment. Compatibility means that a kind of material will not have physical changes or chemical changes if contacted by other kinds of material. Recent research indicated that activated alumina is incompatible with C₄F₇N while there is little research on the compatibility of adsorbents with CF₃SO₂F. To find out the compatibility between the adsorbents and CF₃SO₂F and to verify the test methods used in this paper, a series of tests were performed.
According to the gas application scheme that the researchers have introduced, 20%C₄F₇N/80%CO₂ mixed gas under 0.6 MPa and 40%CF₃SO₂F/N₂ mixed gas under 0.4 MPa were used for the compatibility test. The mixed gas and the adsorbents were put into gas containers made of stainless steel at 25℃. The GC-MS tests and GC tests aimed to analyze the collected gas after the tests were performed 7 days later. The mass of the adsorbents was measured by precision balances before and after the tests to find out how much weight the adsorbent increased through the adsorption process. The gas and adsorbents test results were compared to find out if the target environment-friendly gas was adsorbed.
The adsorption effect of five commonly used adsorbents (3A molecular sieve, 4A molecular sieve, 5A molecular sieve, 13X molecular sieve, and activated alumina) on C₄F₇N/CO₂ and CF₃SO₂F/N₂ gases was experimentally studied. Firstly, the gas chromatography-mass spectrometry (GC-MS ) results show that there is no extra gas produced in both tests for C₄F₇N and CF₃SO₂F which indicates that there are no chemical changes during a 7-day test. By detecting the proportion and composition of mixed gases before and after the test through gas chromatography (GC) test, it is found that activated alumina can obviously reduce the proportion of C₄F₇N by 1.88% which can be converted to 0.257 g while no similar result was observed for CF₃SO₂F. Other adsorbents will not reduce the ratio of the two gases. The increased mass of the adsorbents was calculated and the increased mass of the activated alumina adsorbent is 0.282 g which is approximately equal to the decreased mass of C₄F₇N considering the errors in the test. Because GC-MS test result reveals that no chemical change between C₄F₇N and activated alumina during the test, the adsorption effect is considered physical adsorption. The analysis shows that the CN group of C₄F₇N molecule has a weak interaction with activated alumina, which leads to its adsorption by activated alumina. Therefore, activated alumina is not suitable for use as an adsorbent in C₄F₇N gas-insulated equipment, and the five adsorbents involved are all compatible with CF₃SO₂F.

Key words： Adsorbent C₄F₇N CF₃SO₂F SF₆ alternative gases compatibility

Received: 10 January 2023

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TM213

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[1] 周文俊, 郑宇, 高克利, 等. 环保型绝缘气体电气特性研究进展[J]. 高电压技术, 2018, 44(10): 3114-3124.
Zhou Wenjun, Zheng Yu, Gao Keli, et al.Progress in researching electrical characteristics of environment-friendly insulating gases[J]. High Voltage Engineering, 2018, 44(10): 3114-3124.
[2] 李祎, 张晓星, 傅明利, 等. 环保绝缘气体C₄F₇N研究及应用进展Ⅱ:相容性、安全性及设备研发[J]. 电工技术学报, 2021, 36(21): 4567-4579.
Li Yi, Zhang Xiaoxing, Fu Mingli, et al.Research and application progress of eco-friendly gas insulating medium C₄F₇N, part Ⅱ: material compatibility, safety and equipment development[J]. Transactions of China Electrotechnical Society, 2021, 36(21): 4567-4579.
[3] 张晓星, 陈琪, 张季, 等. 高气压下环保型C₄F₇N/CO₂混合气体工频击穿特性[J]. 电工技术学报, 2019, 34(13): 2839-2845.
Zhang Xiaoxing, Chen Qi, Zhang Ji, et al.Power frequency breakdown characteristics of environmental friendly C₄F₇N/CO₂ gas mixtures under high pressure conditions[J]. Transactions of China Electrotechnical Society, 2019, 34(13): 2839-2845.
[4] 李祎, 张晓星, 傅明利, 等. 环保绝缘气体C₄F₇N研究及应用进展Ⅰ: 绝缘及电、热分解特性[J]. 电工技术学报, 2021, 36(17): 3535-3552.
Li Yi, Zhang Xiaoxing, Fu Mingli, et al.Research and application progress of eco-friendly gas insulating medium C₄F₇N, partⅠ: insulation and electrical, thermal decomposition properties[J]. Transactions of China Electrotechnical Society, 2021, 36(17): 3535-3552.
[5] 周朕蕊, 韩冬, 赵明月, 等. SF₆替代气体分解特性的研究综述[J]. 电工技术学报, 2020, 35(23): 4998-5014.
Zhou Zhenrui, Han Dong, Zhao Mingyue, et al.Review on decomposition characteristics of SF₆ alternative gases[J]. Transactions of China Electrotechnical Society, 2020, 35(23): 4998-5014.
[6] 周文俊, 郑宇, 杨帅, 等. 替代SF₆的环保型绝缘气体研究进展与趋势[J]. 高压电器, 2016, 52(12): 8-14.
Zhou Wenjun, Zheng Yu, Yang Shuai, et al.Research progress and trend of SF₆ alternative with environment friendly insulation gas[J]. High Voltage Apparatus, 2016, 52(12): 8-14.
[7] Kieffel Y, Irwin T, Ponchon P, et al.Green gas to replace SF₆ in electrical grids[J]. IEEE Power and Energy Magazine, 2016, 14(2): 32-39.
[8] 兰佳琪, 田双双, 李晓涵, 等. C₆F₁₂O/N₂混合气体与密封材料丁腈橡胶的相容性研究[J]. 电工技术学报, 2022, 37(5): 1285-1293, 1304.
Lan Jiaqi, Tian Shuangshuang, Li Xiaohan, et al.Compatibility between C₆F₁₂O/N₂ gas mixture and sealing material nitrile butadiene rubber[J]. Transactions of China Electrotechnical Society, 2022, 37(5): 1285-1293, 1304.
[9] 乔胜亚, 周文俊, 王勇, 等. 典型吸附剂对GIS固体绝缘介质放电特征气体变化规律影响[J]. 电工技术学报, 2018, 33(19): 4627-4635.
Qiao Shengya, Zhou Wenjun, Wang Yong, et al.Effect of typical adsorbents on gas change characteristics of gas insulated switchgear solid insulation dielectric[J]. Transactions of China Electrotechnical Society, 2018, 33(19): 4627-4635.
[10] 唐炬, 曾福平, 梁鑫, 等. 两种吸附剂对SF₆分解特征组分吸附的实验与分析[J]. 中国电机工程学报, 2013, 33(31): 211-219, 26.
Tang Ju, Zeng Fuping, Liang Xin, et al.A comparative experimental study on the interaction of SF₆ feature decomposition products with alumina and molecular sieve kdhF-03[J]. Proceedings of the CSEE, 2013, 33(31): 211-219, 26.
[11] Kieffel Y, Biquez F.SF₆ alternative development for high voltage switchgears[C]//2015 IEEE Electrical Insulation Conference (EIC), Seattle, WA, USA, 2015: 379-383.
[12] 杨圆, 高克利, 袁帅, 等. 典型电场下C₄F₇N/CO₂/ O₂混合气体工频击穿特性研究[J]. 电工技术学报, 2022, 37(15): 3913-3922.
Yang Yuan, Gao Keli, Yuan Shuai, et al.Research on the power frequency breakdown characteristics of C₄F₇N/CO₂/O₂ gas mixture under typical electric fields[J]. Transactions of China Electrotechnical Society, 2022, 37(15): 3913-3922.
[13] Nechmi H E, Beroual A, Girodet A, et al.Fluoronitriles/CO₂ gas mixture as promising substitute to SF₆ for insulation in high voltage applications[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2016, 23(5): 2587-2593.
[14] Wang Yi, Gao Zhanyang, Wang Baoshan, et al.Synthesis and dielectric properties of trifluoro-methanesulfonyl fluoride: an alternative gas to SF₆[J]. Industrial & Engineering Chemistry Research, 2019, 58(48): 21913-21920.
[15] Long Yunxiang, Guo Liping, Wang Yi, et al.Electron swarms parameters in CF₃SO₂F as an alternative gas to SF₆[J]. Industrial & Engineering Chemistry Research, 2020, 59(24): 11355-11358.
[16] 赵明月, 韩冬, 周朕蕊, 等. 活性氧化铝和分子筛对C₃F₇CN/CO₂及其过热分解产物的吸附特性[J]. 电工技术学报, 2020, 35(1): 88-96.
Zhao Mingyue, Han Dong, Zhou Zhenrui, et al.Adsorption characteristics of activated alumina and molecular sieves for C₃F₇CN/CO₂ and its decomposition by-products of overheating fault[J]. Transactions of China Electrotechnical Society, 2020, 35(1): 88-96.
[17] 吴鹏, 叶凡超, 李祎, 等. C₄F₇N/CO₂/O₂与三元乙丙橡胶的相容性及相互作用机理研究[J]. 电工技术学报, 2022, 37(13): 3393-3403.
Wu Peng, Ye Fanchao, Li Yi, et al.Compatibility and interaction mechanism between C₄F₇N/CO₂/O₂ and EPDM[J]. Transactions of China Electrotechnical Society, 2022, 37(13): 3393-3403.
[18] Kessler F, Sarfert-Gast W, Kuhlmann L, et al.Compatibility of a gaseous dielectric with Al, Ag, and Cu and gas-phase synthesis of a new N-acylamidine copper complex[J]. European Journal of Inorganic Chemistry, 2020(20): 1989-1994.
[19] Hu Shizhuo, Wang Yi, Zhou Wenjun, et al.Dielectric properties of CF₃SO₂F/N₂ and CF₃SO₂F/CO₂ mixtures as a substitute to SF₆[J]. Industrial & Engineering Chemistry Research, 2020, 59(35): 15796-15804.
[20] 国家质量监督检验检疫总局, 中国国家标准化管理委员会. 六氟化硫电气设备用分子筛吸附剂使用规范: GB/T 34320—2017[S]. 北京: 中国标准出版社, 2017.
[21] 国家市场监督管理总局, 国家标准化管理委员会. 3.6 kV~40.5 kV交流金属封闭开关设备和控制设备: GB/T 3906—2020[S]. 北京: 中国标准出版社, 2020.
[22] 肖淞, 张季, 张晓星, 等. 活性氧化铝对新型环保绝缘气体C₃F₇CN/N₂及其放电分解产物吸附特性[J]. 高电压技术, 2018, 44(10): 3135-3140.
Xiao Song, Zhang Ji, Zhang Xiaoxing, et al.Adsorption characteristics of γ-Al₂O₃ for the environment-friendly insulating medium C₃F₇CN/N₂ and its decomposition products[J]. High Voltage Engineering, 2018, 44(10): 3135-3140.
[23] Yang R T.Adsorbents: fundamentals and applications[M]. New Jersey: Wiley, 2003.
[24] 张永刚, 闫裴. 活性氧化铝载体的孔结构[J]. 工业催化, 2000, 8(6): 14-18.
Zhang Yonggang, Yan Pei.Pore structure of activated alumina carrier[J]. Industrial Catalysis, 2000, 8(6): 14-18.
[25] Kim S, Sorescu D C, Yates J T.Infrared spectroscopic study of the adsorption of HCN by γ-Al₂O₃: competition with triethylenediamine for adsorption sites[J]. The Journal of Physical Chemistry C, 2007, 111(14): 5416-5425.