不同填充材料对介质阻挡放电降解SF<sub>6</sub>的实验研究

doi:10.19595/j.cnki.1000-6753.tces.191566

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Abstract

As a greenhouse gas, the recovery and degradation of SF₆ industrial waste gas is a research hotspot in the field of environment. Based on the double-layer dielectric barrier discharge (DBD) reactor, the degradation process of SF₆ with glass beads, γ-Al₂O₃ particles and no packing system was studied. The results show that the addition of packing materials can change the physical parameters of the reactor and increase the effective capacitance of DBD discharge process and discharge power. In addition, the degradation removal efficiency (DRE) and energy yield (EY) of SF₆ can be effectively improved by adding two kinds of packing materials. In the γ-Al₂O₃ system, the maximum DRE of 2% SF₆ was 85.97% at 110W, and the EY reached 9.17g/(kW·h), far exceeding the case of no packing. The addition of two kinds of packing materials affects the amount of SF₆ decomposition products. The addition of glass beads has no obvious effect on the degradation product, while the packing of γ-Al₂O₃ particles will make SF₆ have a tendency to produce SO₂ and inhibit the formation of SOF₂, SO₂F₂ and SOF₄. At the same time, the output of SO₂ increases with the increase of input power. γ-Al₂O₃ particle packing can effectively improve DRE and EY while inhibiting the formation of refractory products such as SO₂F₂. The results show that adding suitable packing materials such as γ-Al₂O₃ particles can effectively promote the harmless degradation of SF₆.

Key words： Dielectric barrier discharge SF₆ degradation packing material γ-Al₂O₃

Received: 19 November 2019

PACS:

O539

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	Zhang Xiaoxing
	Wang Yufei
	Cui Zhaolun
	Tian Yuan
	Wang Hao

Cite this article:

Zhang Xiaoxing,Wang Yufei,Cui Zhaolun等. Experimental Study on the Degradation of SF₆ by Dielectric Barrier Discharge with Different Packing Materials[J]. Transactions of China Electrotechnical Society, 2021, 36(2): 397-406.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.191566 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I2/397

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