Abstract
The behavior of metallic structured perovskite-based catalysts was evaluated in the combined methane reforming reaction with CO2-O2. The reaction conditions were established by varying the reaction temperature and reactor input composition in the range of 650 to 850℃ and CH4/CO2 ratio 1 to 5, respectively. The results of the catalytic tests at 750℃ showed a positive effect of the metallic structure, producing higher conversions and H2/CO ratios in the products compare to that obtained with the powder catalyst.
Highlights
Catalytic steam methane reforming (SMR) is the principal commercial technology for syngas production [1,2,3]
The results of the catalytic tests at 750 ̊C showed a positive effect of the metallic structure, producing higher conversions and H2/CO ratios in the products compare to that obtained with the powder catalyst
Methane reforming with carbon dioxide, known as dry methane reforming (DMR), to produce syngas with a H2/CO ratio equal to unity (Equation (4)), is one of the methods that utilize one the major greenhouse contributor
Summary
Since this reaction (Equation (1)) is highly endothermic, it is necessary to use high temperature and pressures. These severe reaction conditions cause catalyst deactivation due to carbon deposits on the catalyst surface. The combination of DMR and dry methane oxidation (Equations (2) and (3)) is known as combined methane reforming. We present the results of combined methane reforming with CO2 and O2, using metallic structures similar to a commercial packing, as supports for LaNiO3 perovskite-type oxide. The performance of these systems is compared to the unsupported catalyst
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