Non-Thermal Plasma for Process and Energy Intensification in Dry Reforming of Methane

Catalysts

RufatSh. Abiev¹  EvgenyV. Rebrov¹  KirillV. Semikin²  DmitryYu. Murzin²  DmitryA. Sladkovskiy² 

[1] Department of Optimization of Chemical and Biotechnological Equipment, St. Petersburg State Institute of Technology (Technical University), St. Petersburg 190013, Russia;Resource-Saving Department, St. Petersburg State Institute of Technology (Technical University), St. Petersburg 190013, Russia;

关键词: photocatalyst;    non-thermal plasma;    post-plasma catalysis;    dry reforming of methane;    optical emission spectroscopy;    dielectric barrier discharge;   

DOI  :  10.3390/catal10111358

来源: DOAJ

【 摘 要 】

Plasma-assisted dry reforming of methane (DRM) is considered as a potential way to convert natural gas into fuels and chemicals under near ambient temperature and pressure; particularly for distributed processes based on renewable energy. Both catalytic and photocatalytic technologies have been applied for DRM to investigate the CH₄ conversion and the energy efficiency of the process. For conventional catalysis; metaldoped Ni-based catalysts are proposed as a leading vector for further development. However; coke deposition leads to fast deactivation of catalysts which limits the catalyst lifetime. Photocatalysis in combination with non-thermal plasma (NTP), on the other hand; is an enabling technology to convert CH₄ to more reactive intermediates. Placing the catalyst directly in the plasma zone or using post-plasma photocatalysis could generate a synergistic effect to increase the formation of the desired products. In this review; the recent progress in the area of NTP-(photo)catalysis applications for DRM has been described; with an in-depth discussion of novel plasma reactor types and operational conditions including employment of ferroelectric materials and nanosecond-pulse discharges. Finally, recent developments in the area of optical diagnostic tools for NTP, such as optical emission spectroscopy (OES), in-situ FTIR, and tunable diode laser absorption spectroscopy (TDLAS), are reviewed.

【 授权许可】

Unknown