Ma, Yichen 
ORCID: 0000-0002-4404-8714, Harding, Jonathan D ORCID: 0000-0002-9920-7831 and Tu, Xin ORCID: 0000-0002-6376-0897
(2019)
Catalyst-free low temperature conversion of <i>n</i>-dodecane for co-generation of CO<sub>x</sub>-free hydrogen and C<sub>2</sub> hydrocarbons using a gliding arc plasma.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 44 (48).
pp. 26158-26168.
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Abstract
In this study, plasma reforming of n-dodecane for the co-generation of COx-free hydrogen and C2 hydrocarbons at low temperature and ambient pressure has been investigated in a gliding arc discharge (GAD) reactor. The selective synthesis of H2, C2H2 and C2H4 and the energy efficiency for n-dodecane conversion can be tuned by changing different processing parameters including the gas flow rate, n-dodecane concentration and input voltage. The highest selectivities of H2 (76.7%), C2H2 (41.4%) and C2H4 (12.0%) were achieved with an n-dodecane conversion of 68.1%. The generation of mixed hydrogen, acetylene and ethylene offers the possibility for in-situ hydrogenation to enhance the selectivity of light olefins (e.g., ethylene) without prior gas separation. The plausible reaction mechanism and pathways in the plasma cracking of n-dodecane have been discussed through plasma emission spectroscopic diagnostics coupled with a comprehensive analysis of gas and liquid products. A strong correlation between the yield of C2 hydrocarbons and the relative intensity of C2 Swan bands was found, which suggests that C2 Swan bands could be used as a valuable probe to understand the generation of C2 hydrocarbons in the plasma reforming of hydrocarbon oils.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Non-thermal plasma, n-Dodecane, Hydrocarbon oils, Hydrogen production, C-2 hydrocarbons |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 19 Sep 2019 07:42 |
| Last Modified: | 14 Oct 2023 09:30 |
| DOI: | 10.1016/j.ijhydene.2019.08.067 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3055104 |
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