Enhanced removal of ultrafine particles from kerosene combustion using a dielectric barrier discharge reactor packed with porous alumina balls

Jing LI (李晶); Haiquan LU (陆海全); Qi WANG (汪琦); Guojian LI (李国建); Shuiliang YAO (姚水良); Zuliang WU (吴祖良)

doi:10.1088/2058-6272/abffaa

Plasma Science and Technology > 2021 > 23(7): 75505-075505. > DOI: 10.1088/2058-6272/abffaa

Jing LI (李晶), Haiquan LU (陆海全), Qi WANG (汪琦), Guojian LI (李国建), Shuiliang YAO (姚水良), Zuliang WU (吴祖良). Enhanced removal of ultrafine particles from kerosene combustion using a dielectric barrier discharge reactor packed with porous alumina balls[J]. Plasma Science and Technology, 2021, 23(7): 75505-075505. DOI: 10.1088/2058-6272/abffaa

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Enhanced removal of ultrafine particles from kerosene combustion using a dielectric barrier discharge reactor packed with porous alumina balls

¹ School of Environmental and Safety Engineering, Advanced Plasma-Catalysis Engineering Laboratory for China Petrochemical Industry, Changzhou University, Changzhou 213164, People's Republic of China
² Engineering Research Center of Construction Technology of Precast Concrete of Zhejiang Province, Hangzhou 310018, People's Republic of China
³ Anji Runfeng Air Purification Technology Co. Ltd., Hangzhou 313300, People's Republic of China
⁴ Zhejiang Gongshang University, Hangzhou 310018, People's Republic of China

Funds: This project was funded by the Open Foundation of Engineering Research Center of Construction Technology of Precast Concrete of Zhejiang Province (No. ZZP1902).

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Received Date: January 23, 2021
Revised Date: May 06, 2021
Accepted Date: May 09, 2021

Graphical Abstract

Abstract

Abstract

Ultrafine particles (UFPs) are harmful to human beings, and their effective removal from the environment is an urgent necessity. In this study, a dielectric barrier discharge (DBD) reactor packed with porous alumina (PA) balls driven by a pulse power supply was developed to remove the UFPs (ranging from 20 to 100 nm) from the exhaust gases of kerosene combustion. Five types of DBD reactors were established to evaluate the effect of plasma catalysis on the removal efficiency of UFPs. The influences of gas flow rate, peak voltage and pulse frequency of different reactors on UFPs removal were investigated. It was found that a high total UFP removal of 91.4% can be achieved in the DBD reactor entirely packed with PA balls. The results can be attributed to the enhanced charge effect of the UFPs with PA balls in the discharge space. The UFP removals by diffusion deposition and electrostatic attraction were further calculated, indicating that particle charging is vital to achieve high removal efficiency for UFPs.
- ultrafine particles,
- dielectric barrier discharge,
- porous alumina balls,
- charge effect,
- removal efficiency

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References (48)

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