Zhu, Xinbo, Hu, Xueli, Wu, Xiqiang, Cai, Yuxiang, Zhang, Hongbin and Tu, Xin ORCID: 0000-0002-6376-0897
(2020)
Ammonia synthesis over γ-Al<sub>2</sub>O<sub>3</sub> pellets in a packed-bed dielectric barrier discharge reactor.
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 53 (16).
p. 164002.
Text
J Phys D Zhu NH3.pdf - Author Accepted Manuscript Download (960kB) | Preview |
Abstract
In this work, ammonia (NH3) synthesis from N2 and H2 was carried out in a packed-bed dielectric barrier discharge (DBD) reactor, while three kinds of commercial packing materials including acidic γ-Al2O3, alkaline γ-Al2O3 and neutral alumina pellets were employed. The effect of packing materials on plasma-assisted NH3 synthesis was investigated and compared with an unpacked DBD reactor. The results show that the presence of packing materials enhanced the plasma-assisted NH3 synthesis by 15.6% to 44.4% compared to the plasma reaction without a packing. The highest NH3 concentration of 1565.5 ppm was obtained over the alkaline γ-Al2O3 packed plasma reactor. The improvement of packing materials on plasma-assisted NH3 synthesis followed the order of alkaline γ-Al2O3 > neutral γ-Al2O3 > acidic γ-Al2O3 > blank tube only. A series of characterizations were performed to illustrate the structure-performance relationships between plasma-induced NH3 synthesis process and packing materials. The results showed that the basicity of the packing materials played an important role in the plasma-assisted NH3 synthesis process. The reaction mechanisms of NH3 synthesis in the packed-bed DBD reactor were also discussed.
Item Type: | Article |
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Uncontrolled Keywords: | ammonia synthesis, dielectric barrier discharge, plasma-catalysis, gamma-Al2O3, reaction mechanisms |
Depositing User: | Symplectic Admin |
Date Deposited: | 02 Mar 2020 10:33 |
Last Modified: | 14 Oct 2023 11:42 |
DOI: | 10.1088/1361-6463/ab6cd1 |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3077357 |