scholarly journals Effects of Reactor Packing Materials on H2 Production by CO2 Reforming of CH4 in a Dielectric Barrier Discharge

2011 ◽  
Vol 9 (1) ◽  
pp. 90-97 ◽  
Author(s):  
Helen J. Gallon ◽  
Xin Tu ◽  
J. Christopher Whitehead
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
H2 Production ◽  
Co2 Reforming ◽  
Packing Materials ◽  
Dielectric Barrier ◽  
Co2 Reforming Of Ch4

scholarly journals Altering Conversion and Product Selectivity of Dry Reforming of Methane in a Dielectric Barrier Discharge by Changing the Dielectric Packing Material

Catalysts ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 51 ◽  
Author(s):  
Inne Michielsen ◽  
Yannick Uytdenhouwen ◽  
Annemie Bogaerts ◽  
Vera Meynen
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Dry Reforming ◽  
Packing Material ◽  
Dry Reforming Of Methane ◽  
Product Selectivity ◽  
Total Conversion ◽  
Packing Materials ◽  
Dielectric Barrier ◽  
Α Al2o3

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 α-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 (~70%) and ethane (~14%), together with an enhanced CO/H2 ratio of 9 in a 4.5 mm gap DBD at 60 W and 23 kHz. γ-Al2O3 is only slightly less active in total conversion (22%) but is even more selective in products formed than α-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.

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