DOI: 10.1016/j.jcou.2018.08.020
Scopus记录号: 2-s2.0-85052923013
论文题名: Warm plasma activation of CO2 in a rotating gliding arc discharge reactor
作者: Zhang H. ; Li L. ; Li X. ; Wang W. ; Yan J. ; Tu X.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 27 起始页码: 472
结束页码: 479
语种: 英语
英文关键词: CO2 dissociation
; flow rate
; rotating gliding arc
; specific energy input
; warm plasma
Scopus关键词: Argon
; Carbon dioxide
; Dielectric materials
; Electric arcs
; Electric corona
; Flow rate
; Seebeck effect
; Corona discharges
; Dielectric barrier
; Gliding arc
; Nonthermal plasma
; Reaction performance
; Specific energy input
; Variation pattern
; Warm plasmas
; Energy efficiency
英文摘要: In this study, a rotating gliding arc (RGA) warm plasma has been developed for the conversion of CO2 into CO and O2. The effect of feed flow rate, applied voltage, arc current, and the addition of N2 or Ar on the reaction performance has been investigated. The results show two variation patterns of CO2 conversion and energy efficiency, depending on the specific energy input (SEI): In Pattern A with SEI > 3.5 kJ/L, the CO2 conversion and energy efficiency decrease simultaneously with increasing SEI, while in Pattern B with SEI ≤ 3.5 kJ/L, the energy efficiency and the CO2 conversion show an opposite trend. The recombination of CO and O at high temperatures could be responsible for the decrease of CO2 conversion with rising SEI due to the increased retention time or gas temperature. A CO2 conversion of 4.0-4.4% and energy efficiency of 16-17% can be achieved. Compared to other non-thermal plasmas, the RGA plasma exhibits a lower CO2 conversion but higher energy efficiency, whilst maintaining a flow rate (e.g, 6-7 L/min) that is significantly higher than that of typical non-thermal plasmas (e.g., 20-125 ml/min in dielectric barrier and corona discharges). Increasing the fraction of N2 or Ar promotes the conversion of CO2 but lowers the energy efficiency. N2 is clearly more beneficial for enhancing the CO2 conversion in comparison to Ar. Further enhancement of the reaction performance can be expected by cooling the plasma area to lower the gas temperature, to limit the recombination of CO and O. © 2018 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111789
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China; School of Astronautics, Beihang University, Beijing, 100191, China; Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, L69 3GJ, United Kingdom
Recommended Citation:
Zhang H.,Li L.,Li X.,et al. Warm plasma activation of CO2 in a rotating gliding arc discharge reactor[J]. Journal of CO2 Utilization,2018-01-01,27