NH<sub>3</sub>对DBD降解SF<sub>6</sub>影响的试验研究

doi:10.19595/j.cnki.1000-6753.tces.181607

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Abstract With the extensive use of SF₆ in the power industry, the SF₆ emission from gas- insulated equipment has also increased dramatically, and untreated SF₆ emission has an adverse impact on the environment. Therefore, it is important to deal with SF₆ waste gas. In this paper, based on the dielectric barrier discharge (DBD) plasma technology, SF₆ was degraded under the synergistic effect of NH₃. Studies have shown that: NH₃ can promote the decomposition process of SF₆, and improve the degradation rate efficiency (DRE) and energy yield (EY). NH₃ and SF₆ show the best synergistic effect when the concentration ratio is 11, and the input power of 90W can make the 2% SF₆ decomposed 97.5% at a flow rate of 50mL/min. At the same time, with NH₃ addition, SF₆ is decomposed more thoroughly, and the solid states S element,[NH₄]₂SO₄, NH₄F and NH₄HF precipitate. Gas products mainly include SiF₄, SiH₄, SO₂F₂, SO₂, SOF₄, SOF₂, S₂F₁₀, SF₄ and nitrogen oxides (NO_x).

Key words： Dielectric barrier discharge (DBD) NH₃ SF₆ degradation rate efficiency (DRE) degradation products

Received: 09 October 2018 Published: 30 December 2019

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TM213

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	Li Yalong
	Zhang Xiaoxing
	Cui Zhaolun
	Xiao Hanyan
	Zhang Guozhi

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Li Yalong,Zhang Xiaoxing,Cui Zhaolun等. Experiment of Effect of Ammonia on Degradation of Sulfur Hexafluoride by Dielectric Barrier Discharge[J]. Transactions of China Electrotechnical Society, 2019, 34(24): 5262-5269.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.181607 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I24/5262

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