TY - JOUR
T1 - Reaction mechanism of methane activation using non-equilibrium pulsed discharge at room temperature
AU - Kado, Shigeru
AU - Urasaki, Kohei
AU - Sekine, Yasushi
AU - Fujimoto, Kaoru
AU - Nozaki, Tomohiro
AU - Okazaki, Ken
N1 - Funding Information:
S. Kado is grateful for his Research Fellowship from the Japan Society for the Promotion of Science (JSPS) for Young Scientists.
PY - 2003/12/1
Y1 - 2003/12/1
N2 - The reaction mechanism of methane activation using non-equilibrium pulsed discharge was largely clarified from the emission spectroscopic study and experiments with higher hydrocarbons and some kinds of isotopes. The strong emission of atomic carbon and C2 swan band system was observed as well as H Balmer series emission. This indicates that methane was highly dissociated into C and H by electron impact, which is consistent with the result of high C2D2 composition in produced acetylene when the mixture of CH4 and D2 was fed into discharge region. High electron energy contributed to produce atomic carbon directly from methane, and high electron density promoted the dehydrogenation from CH 3, CH2 and CH to produce atomic carbon consecutively. The reason for the high selectivity to C2H2 was the high concentration of CH or C2 formed from atomic carbon, and the repetition mechanism of decomposition and recombination among C, CH, C 2 and C2H2.
AB - The reaction mechanism of methane activation using non-equilibrium pulsed discharge was largely clarified from the emission spectroscopic study and experiments with higher hydrocarbons and some kinds of isotopes. The strong emission of atomic carbon and C2 swan band system was observed as well as H Balmer series emission. This indicates that methane was highly dissociated into C and H by electron impact, which is consistent with the result of high C2D2 composition in produced acetylene when the mixture of CH4 and D2 was fed into discharge region. High electron energy contributed to produce atomic carbon directly from methane, and high electron density promoted the dehydrogenation from CH 3, CH2 and CH to produce atomic carbon consecutively. The reason for the high selectivity to C2H2 was the high concentration of CH or C2 formed from atomic carbon, and the repetition mechanism of decomposition and recombination among C, CH, C 2 and C2H2.
KW - Acetylene
KW - Methane dehydrogenation
KW - Spark discharge
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U2 - 10.1016/S0016-2361(03)00163-7
DO - 10.1016/S0016-2361(03)00163-7
M3 - Article
AN - SCOPUS:0042863327
SN - 0016-2361
VL - 82
SP - 2291
EP - 2297
JO - Fuel
JF - Fuel
IS - 18
ER -