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Dry Reforming of Methane under Mild Conditions Using Radio Frequency Plasma
Author(s) -
Devid Edwin,
Zhang Diyu,
Wang Dongping,
Ronda-Lloret Maria,
Huang Qiang,
Rothenberg Gadi,
Shiju N. Raveendran,
Kleyn Aart W.
Publication year - 2020
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201900886
Subject(s) - endothermic process , methane , catalysis , inductively coupled plasma , syngas , plasma , hydrogen , carbon dioxide reforming , yield (engineering) , chemistry , chemical engineering , inorganic chemistry , materials science , organic chemistry , metallurgy , adsorption , physics , quantum mechanics , engineering
Dry reforming of methane (DRM) is a challenging process wherein methane reacts with CO 2 to give syngas. This reaction is strongly endothermic, typically requiring temperatures higher than 500 °C. Catalysts can be used, but the high temperatures (which are a thermodynamic requirement) often lead to catalyst deactivation. Herein, the reaction from another conceptual direction is approached, using low‐power radio frequency inductively coupled plasma (RF‐ICP). It is demonstrated that this system can give high conversions of methane and CO 2 at near‐ambient temperatures. Importantly, the energy costs in this system are considerably lower compared with other plasma‐driven DRM processes. Furthermore, it is shown that the yield of hydrogen can be increased by minimizing the C2 compound formation. The factors that govern the DRM process and discuss H α emission and its influence on H atom recycling in the process are examined.