Plasma Chemistry and Plasma Processing · 2018 · 78 citations · 31 references
Natural SciencesChemical EngineeringChemistryCatalysisPlasma PhysicsReaction EngineeringCatalyst DesignCatalytic MaterialsCatalytic Reaction EngineeringCatalytic Reactor DesignReaction Process DesignReactor DesignCarbon DioxideCatalytic Energy ConversionDielectric Barrier DischargesNon-thermal Plasma TreatmentPlasma CatalysisPlasma-assisted CatalysisReaction Engineering Of Catalytic ReactorsSyngas Production
We present an innovative approach for reacting carbon dioxide and water to give syngas by combining heterogeneous catalysis and non-thermal plasma techniques. This approach utilizes an abundant water and nickel catalyst, and mitigates the thermodynamic penalty by using a Dielectric Barrier Discharge (DBD) plasma reactor. Argon dilution was used in the experiment to reduce the exothermic recombination of hydrogen and oxygen, which is considered as the major hurdle for H 2 O conversion. As a result, the syngas ratio was dramatically improved from 0.07 to 0.86. In addition, the conversions of CO 2 and H 2 O were improved by packing Ni/γ–Al 2 O 3 catalysts into the DBD reactor. The yields of H 2 and CO were up to 13.8% and 5.6% respectively. The conditions for plasma catalysis and the catalyst characterization are presented and discussed.
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