TY - JOUR
T1 - Plasma enhanced CH4 direct conversion in pulsed dielectric barrier discharges
AU - Gao, Yuan
AU - Zhang, Shuai
AU - Liu, Feng
AU - Wang, Ruixue
AU - Wang, Tielin
AU - Shao, Tao
N1 - Publisher Copyright:
© 2017, The editorial office of Transaction of China Electrotechnical Society. All right reserved.
PY - 2017/1/25
Y1 - 2017/1/25
N2 - In this paper, plasma catalytic reforming of CH4 is carried out by both microsecond-pulse and nanosecond-pulse dielectric barrier discharges (DBDs). Characteristics of DBD plasma for microsecond-pulse and nanosecond-pulse had been compared. Effects of pulse repetition rate, CH4 flow rate and input power on the convention rate of CH4 and distribution of gaseous products are investigated. Moreover, the corresponding selection of chemical reaction paths is analyzed. The results show that main parts of the gaseous products are H2 and C2H6. The conversion rate of CH4 and the yield of hydrogen increase with the pulse repetition rate, but they decrease with the CH4 flow rate. Furthermore, the conversion rate of CH4 and the yield of hydrogen are high for microsecond-pulse DBD when the pulse repetition rate and the CH4 flow rate are fixed. The energy efficiency in the case of nanosecond-pulse DBD is higher than that in the case of microsecond-pulse DBD. In addition, coking and liquid hydrocarbons appear on the quartz tube and inner electrode at the conditions of high pulse repetition rate and low CH4 flow rate, leading to the reduction of C&H balance. The selectivities of H2 and C2H6 decreases with the increase of the input power in the case of microsecond-pulse DBD, while they increase with the input power in the case of nanosecond-pulse DBD.
AB - In this paper, plasma catalytic reforming of CH4 is carried out by both microsecond-pulse and nanosecond-pulse dielectric barrier discharges (DBDs). Characteristics of DBD plasma for microsecond-pulse and nanosecond-pulse had been compared. Effects of pulse repetition rate, CH4 flow rate and input power on the convention rate of CH4 and distribution of gaseous products are investigated. Moreover, the corresponding selection of chemical reaction paths is analyzed. The results show that main parts of the gaseous products are H2 and C2H6. The conversion rate of CH4 and the yield of hydrogen increase with the pulse repetition rate, but they decrease with the CH4 flow rate. Furthermore, the conversion rate of CH4 and the yield of hydrogen are high for microsecond-pulse DBD when the pulse repetition rate and the CH4 flow rate are fixed. The energy efficiency in the case of nanosecond-pulse DBD is higher than that in the case of microsecond-pulse DBD. In addition, coking and liquid hydrocarbons appear on the quartz tube and inner electrode at the conditions of high pulse repetition rate and low CH4 flow rate, leading to the reduction of C&H balance. The selectivities of H2 and C2H6 decreases with the increase of the input power in the case of microsecond-pulse DBD, while they increase with the input power in the case of nanosecond-pulse DBD.
KW - Dielectric barrier discharge
KW - Hydrogen production rate
KW - Methane conversion
KW - Microsecond pulsed discharge
KW - Nanosecond pulsed discharge
UR - http://www.scopus.com/inward/record.url?scp=85014265034&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:85014265034
SN - 1000-6753
VL - 32
SP - 61
EP - 69
JO - Diangong Jishu Xuebao/Transactions of China Electrotechnical Society
JF - Diangong Jishu Xuebao/Transactions of China Electrotechnical Society
IS - 2
ER -
