电工技术学报2017，Vol.32Issue(2)：61-69,9.
脉冲介质阻挡放电等离子体催化CH4直接转化
Plasma Enhanced CH4 Direct Conversion in Pulsed Dielectric Barrier Discharges
摘要
Abstract
In this paper,plasma catalytic reforming of CH4 is carried out by both microsecondpulse 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.关键词
纳秒脉冲放电/微秒脉冲放电/介质阻挡放电/CH4转化/氢气产率Key words
Nanosecond pulsed discharge/microsecond pulsed discharge/dielectric barrier discharge/methane conversion/hydrogen production rate分类
数理科学引用本文复制引用
高远,张帅,刘峰,王瑞雪,汪铁林,邵涛..脉冲介质阻挡放电等离子体催化CH4直接转化[J].电工技术学报,2017,32(2):61-69,9.基金项目
国家自然科学基金中英人才基金(51561130156)、青年基金(51507169)和英国皇家学会牛顿高级学者基金(NA140303)资助项目. （51561130156）
