Comparison of dry reforming of methane in low temperature hybrid plasma-catalytic corona with thermal catalytic reactor over Ni/[gamma]-Al2O3

In the current study, the hybrid effect of a corona discharge and [gamma]-alumina supported Ni catalysts in CO2 reforming of methane is investigated. The study includes both purely catalytic operation in the temperature range of 923-1023 K, and hybrid catalytic-plasma operation of DC corona discharg...

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Bibliographic Details
Published in:Journal of natural gas chemistry 2012-07, Vol.21 (4), p.466-475
Main Authors: Aziznia, Amin, Bozorgzadeh, Hamid Reza, Seyed-Matin, Naser, Baghalha, Morteza, Mohamadalizadeh, Ali
Format: Article
Language:English
Subjects:
Byproducts
Carbon dioxide
Catalysis
Catalysts
Coronas
Methane
Nickel
Reactors
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Summary:In the current study, the hybrid effect of a corona discharge and [gamma]-alumina supported Ni catalysts in CO2 reforming of methane is investigated. The study includes both purely catalytic operation in the temperature range of 923-1023 K, and hybrid catalytic-plasma operation of DC corona discharge reactor at room temperature and ambient pressure. The effect of feed flow rate, discharge power and Ni/[gamma]-Al2O3 catalysts are studied. When CH4/CO2 ratio in the feed is 1/2, the syngas of low H2/CO ratio at about 0.56 is obtained, which is a potential feedstock for synthesis of liquid hydrocarbons. Although Ni catalyst is only active above 573 K, presence of Ni catalysts in the cold corona plasma reactor (TaO523 K) shows promising increase in the conversions of methane and carbon dioxide. When Ni catalysts are used in the plasma reaction, H2/CO ratios in the products are slightly modified, selectivity to CO increases whereas fewer by-products such as hydrocarbons and oxygenates are formed.
ISSN:1003-9953
DOI:10.1016/S1003-9953(11)60392-7