纳秒脉冲介质阻挡放电等离子体驱动CH<sub>4</sub>-CH<sub>3</sub>OH转化制备液态化学品的特性研究

doi:10.19595/j.cnki.1000-6753.tces.210679

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Abstract The direct one-step conversion of CH₃OH with CH₄ into value-added liquid chemicals could avoid the problems (harsh reaction conditions, industrial effluent and low atomic economy) that are usually engaged in industrial production. In this paper, CH₄ and CH₃OH are used to directly synthesize C₂-C₄ liquid products by nanosecond pulsed dielectric barrier discharge.The effects of Ar dilution, pulse rising and falling time on the electrical characteristics and conversion are investigated, and the reaction mechanism is also discussed.The results show that the main gaseous products are H₂, CO, C₂H₆, C₃H₈, while the main liquid products are C₂H₅OH and C₃H₇OH. Penning ionization induced by Ar dilution is favorable for the liquid formation, which the highest total liquid selectivity is 16.4%.It is found that the larger rising&falling time could enhance the liquid formation with the fixed voltage and frequency. When the rising&falling timeare 500ns, the total liquid selectivity achieves 14.7%.

Key words： Nanosecond pulse dielectric barrier discharge (DBD) methane conversion plasma chemistry

Received: 14 May 2021

PACS:	O461
	O461.2+5
	O646.9

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	Articles by authors
	Hei Xueting
	Gao Yuan
	Dou Liguang
	Li Jiangwei
	Chen Genyong
	Shao Tao

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Hei Xueting,Gao Yuan,Dou Liguang等. Study on Plasma Enhanced CH₄-CH₃OH Conversion to Liquid Chemicals by Nanosecond Pulsed Dielectric Barrier Discharge[J]. Transactions of China Electrotechnical Society, 2022, 37(15): 3941-3950.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.210679 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I15/3941

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