Influencing Factors of CO2 Conversion by Gliding Arc Discharge

被引：0

作者：

Meng, Xiangyi ^{[1
]}

Zhang, Tinghao ^{[1
]}

Lu, Na ^{[1
]}

Shang, Kefeng ^{[1
]}

Jiang, Nan ^{[1
]}

机构：

[1] School of Electrical Engineering» Dalian University of Technology, Dalian,116024, China

来源：

Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section) | 2023年 / 39卷 / 05期

关键词：

Argon - Electric arcs - Electrodes - Energy efficiency - Nozzles;

D O I：

10.3969/j.issn.1001-8719.2023.05.004

中图分类号：

学科分类号：

摘要：

The gliding arc discharge device, with the advantages of simple structure, being easy to assemble and disassemble, and flexible start-stop, is widely concerned in the field of CO2 conversion. How to enhance CO2 conversion rate is an important research direction at present. A planar blade-type gliding arc reactor was built to study the effects of reactor structure and gas phase parameters on CO2 conversion by use of the modulated pulse power supply driving sliding arc discharge. The results show that CO2 conversion can be promoted by prolonging the electrode length, reducing the nozzle diameter as well as the gas outlet from the side of the reactor cover. When meeting the conditions such as the electrode length of 10 cm, both nozzle diameter and electrode spacing of 2. 5 mm, and side outlet of the reaction cover, the energy efficiency of CO2 conversion can reach 52. 8%. Ar and N2 can collide with high energy electrons in discharge plasma to produce metastable particles; CO2 molecules can collide with metastable particles to result in dissociation and improve CO2 conversion rate. The conversion effects of CO2 after the addition of Ar and N2 separately in the reaction system were studied. The results show that the CO2 conversion rate is 2. 55 times and 3.05 times the single CO2 conversion rate when the volume ratio of added Ar and N2 is up to 90%. © 2023 Science Press. All rights reserved.

引用

页码：995 / 1002