Utilization of waste rapeseed oil by rotating gliding arc plasma

Rotating gliding arc discharge was used to convert waste rapeseed oil into high value chemical products. Electrical parameters and arc dynamics under different operating conditions were investigated to obtain a visualized understanding of oil-electrochemical conversion in plasma. Gas selectivity and...

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Bibliographic Details
Published in:International journal of hydrogen energy 2015-08, Vol.40 (30), p.9039-9048
Main Authors: Wu, Angjian, Li, Xiaodong, Chen, Lu, Zhu, Fengsen, Zhang, Hao, Du, Changming, Yan, Jianhua
Format: Article
Language:English
Subjects:
Arc dynamics
Bio-char
Bio-oil
Electrical parameters
Syngas
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Summary:Rotating gliding arc discharge was used to convert waste rapeseed oil into high value chemical products. Electrical parameters and arc dynamics under different operating conditions were investigated to obtain a visualized understanding of oil-electrochemical conversion in plasma. Gas selectivity and oil conversion exhibited that higher applied voltage promoted syngas production with better energy efficiency. Increasing the waste oil input and N2 flow rate facilitated the generation of total gas phase products, while decreasing the yields of syngas. Liquid products indicated similar composition distribution of alkyl chain structures, while alkanes, cycloalkanes, olefins, and aromatic hydrocarbons were favored under the effects of plasma. The texture and morphology of solid carbon on electrodes were dependent on the applied electrical power and indicated the existence of graphitic structures. [Display omitted] •A rotating gliding arc (RGA) reactor was used for waste rapeseed oil conversion.•Electrical characteristics and dynamic motions in oil discharge were investigated.•Product (gases, liquid, solid carbon) distribution was analyzed to postulate reaction pathways.
ISSN:0360-3199
1879-3487
DOI:10.1016/j.ijhydene.2015.05.158