Plasma Catalysis pp 231-269 | Cite as
Plasma-Catalytic Conversion of Methane
Abstract
This chapter focuses particularly on dielectric barrier discharge (DBD) and catalyst hybrid reaction for nonthermal plasma catalysis of methane conversion. First, plasma catalysis of methane is reviewed in terms of endothermic and exothermic nature of the reaction systems where the role of nonthermal plasma is essentially different. After that, dry reforming of methane in DBD/catalyst hybrid reaction is highlighted based on our recent study. Basics of heterogeneous reaction, known as a Langmuir-Hinshelwood mechanism, are overviewed for the better understanding of nonthermal plasma and surface interaction as well as plasma-enhanced heterogeneous reactions. A thermodynamic analysis of CH4 reforming, as well as fundamental characteristics of packed-bed DBD, are also introduced to support readers understanding. Pulsed reaction spectrometry is introduced as a powerful diagnostic tool of heterogeneous reaction kinetics under the influence of nonthermal plasma. With that, plasma-enabled synergism, as well as energy efficiency, are discussed towards a deeper insight into plasma catalysis for methane conversion. Finally, concluding remark and future outlook are presented.
Notes
Acknowledgments
This work is supported by the Japan Society for the Promotion of Science (JSPS) KAKENHI (JP16J09876). S.K. acknowledges JSPS for providing Research Fellowship for Young Scientists (DC1); Z.R. acknowledges financial support from the program of China Scholarships Council (No.201707040056). T.N. would like to thank Mr. Tinnapop Moonmuang (Mechanical Engineering, Chiang Mai University) for the experimental support.
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