窄间隙介质阻挡放电转化甲烷的研究

在常温常压无催化剂条件下,对介质阻挡放电甲烷与氧气的合成进行了研究.试验了原料气体总流量、氧的体积分数和激励电压等参数对甲烷转化率、甲醇及C2H4收率的影响,并研究了不同氧的体积分数下甲烷转化率和消耗功率的关系.甲烷和氧气的总流量为1 000 mL/min时,CH4转化率保持在70%以上,最高达到81.1%;氧气的加入提高了甲醇的收率,当氧的体积分数为18.26%时甲醇收率达到12.33%;激励电压在1 850~1 900 V时,CH4转化率、甲醇和C2H4的收率均出现了最大值;随着消耗功率的减少,CH4转化率也随之降低.

Conversion of Methane Based Micro-gap Discharge

This paper presents a study of conversing methane to oxycompound at the condition of room temperature and atmospheric pressure without catalyst.Influence rules of conversion of methane and production of new substance are studied by changing total flow of feed,gas ratio and voltage.When total flow of methane and oxygen is 1 000 mL/min,methane conversion is keeping up to 70%,reaching up to 81.1% in the best.The addition of oxygen increasingly improves methanol yield,reaching up to 12.33% when the volume fraction of oxygen is 18.26%.There is a max of methane,methanol and ethene when voltage is 1 850～1 900 V.Methane conversion falls with decrease of consumed power.