@article {46145, title = {Dry reforming of methane in DBD plasma over Ni-based catalysts: influence of process conditions and support on performance and durability}, journal = {Energy Technology}, volume = {7}, year = {2019}, month = {APR}, pages = {1801008}, type = {Article}, abstract = {

The conversion of greenhouse gases, H-2 and CO selectivity, H-2/CO ratio, and carbon formation in the dry reforming reaction over Ni-supported ZSM-5, Al2O3, and TiO2 are tested under thermal, plasma, and plasma-thermal conditions. It is observed that the dielectric nature, specific surface area, and acid-base properties of the support influence the performance during the DRM reaction. Typical results indicate that the best activity and syngas yield are achieved with 15Ni/Al2O3 under plasma conditions, possibly due to the high dielectric constant and surface area of Al2O3 and nanosize of Ni. In the thermal condition, the highest conversion of 73\% and 68\% for CH4 and CO2, respectively, is achieved over 15Ni/ZSM-5 at 500 degrees C. Plasma-assisted thermal conditions provide the highest conversion due to the activation of reactants and their partial conversion in the plasma zone before entering into the catalytic zone. The plasma-assisted thermocatalytic conversions of CH4 and CO2 reach the best values of 76\% and 71\%, respectively, on 15Ni/ZSM-5. Under the same conditions, 68\% and 65\% conversion of CH4 and CO2, respectively, is achieved with 15Ni/Al2O3 where the selectivity for H-2 and CO is 45\% and 58\%, respectively.

}, keywords = {DBD plasma, Dry reforming, reaction conditions, supported catalysts, Syngas}, issn = {2194-4288}, doi = {10.1002/ente.201801008}, author = {Ray, Debjyoti and Nepak, Devadutta and Janampelli, Sagar and Goshal, Partha and Subrahmanyam, Ch} }