Publication
Title
Altering conversion and product selectivity of dry reforming of methane in a dielectric barrier discharge by changing the dielectric packing material
Author
Abstract
We studied the influence of dense, spherical packing materials, with different chemical compositions, on the dry reforming of methane (DRM) in a dielectric barrier discharge (DBD) reactor. Although not catalytically activated, a vast effect on the conversion and product selectivity could already be observed, an influence which is often neglected when catalytically activated plasma packing materials are being studied. The alpha-Al2O3 packing material of 2.0-2.24 mm size yields the highest total conversion (28%), as well as CO2 (23%) and CH4 (33%) conversion and a high product fraction towards CO (similar to 70%) and ethane (similar to 14%), together with an enhanced CO/H-2 ratio of 9 in a 4.5 mm gap DBD at 60 W and 23 kHz. gamma-Al2O3 is only slightly less active in total conversion (22%) but is even more selective in products formed than alpha-Al2O3 BaTiO3 produces substantially more oxygenated products than the other packing materials but is the least selective in product fractions and has a clear negative impact on CO2 conversion upon addition of CH4. Interestingly, when comparing to pure CO2 splitting and when evaluating differences in products formed, significantly different trends are obtained for the packing materials, indicating a complex impact of the presence of CH4 and the specific nature of the packing materials on the DRM process.
Language
English
Source (journal)
Catalysts
Publication
2019
ISSN
2073-4344
DOI
10.3390/CATAL9010051
Volume/pages
9 :1 (2019) , 32 p.
Article Reference
51
ISI
000459732000051
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Project info
Systematic research for the impact and opportunities of catalysts in CO2 and methane conversion through plasma.
CO2 conversion by plasma catalysis: unraveling the influence of the plasma and the nanocatalyst properties on the conversion efficiency.
EnOp: CO2 for energy storage
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier
Creation 04.04.2019
Last edited 02.10.2024
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