期刊
ENERGY TECHNOLOGY
卷 3, 期 10, 页码 1038-1044出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ente.201500127
关键词
carbon dioxide; computational chemistry; energy conversion; plasma chemistry; sustainable chemistry
资金
- Belgian Science Policy Office (BELSPO)
- Institute for the Promotion of Innovation by Science and Technology in Flanders (IWT Flanders)
The use of plasma technology for CO2 splitting is gaining increasing interest, but one of the major obstacles to date for industrial implementation is the considerable energy cost. We demonstrate that the introduction of a packing of dielectric zirconia (ZrO2) beads into a dielectric barrier discharge (DBD) plasma reactor can enhance the CO2 conversion and energy efficiency up to a factor 1.9 and 2.2, respectively, compared to that in a normal (unpacked) DBD reactor. We obtained a maximum conversion of 42% and a maximum energy efficiency of 9.6%. However, it is the ability of the packing to almost double both the conversion and the energy efficiency simultaneously at certain input parameters that makes it very promising. The improved conversion and energy efficiency can be explained by the higher values of the local electric field and electron energy near the contact points of the beads and the lower breakdown voltage, demonstrated by 2D fluid modeling.
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