Plasma–Catalyst Synergy During Methanol Steam Reforming in Dielectric Barrier Discharge Micro-plasma Reactors for Hydrogen Production
Plasma–Catalyst Synergy During Methanol Steam Reforming in Dielectric Barrier Discharge Micro-plasma Reactors for Hydrogen Production
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DOI：
10.1007/s11090-014-9585-6
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发表时间：
2014
影响因子：
3.6
通讯作者：
Wenjie Ge;Xiaofei Duan;Yanping Li;Baowei Wang
中科院分区：
文献类型：
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作者：
Wenjie Ge;Xiaofei Duan;Yanping Li;Baowei Wang
低温等离子体是一种有效的等离子体重整甲醇制氢技术。在介质阻挡放电微等离子体反应器中，以Cu/Al 2 O3为催化剂，对甲醇水蒸气重整制氢进行了研究。比较实验结果使用的反应器，有和没有催化剂的报告。甲醇转化率和氢气产率分别比未活化催化剂提高17.89%和21.86%。加入Cu/Al 2 O3催化剂后，主要气体产物由H2和CO转变为H2和CO2。甲醇转化率随着放电频率和输入功率的增加而增加，随着液体进料速率的增加而降低。在水碳比为1.0、放电频率为18.00 ± 0.05 kHz、输入功率为18.70 W、氩气流量为10.0 mL/min、液体进料量为0.0165 mL/min的条件下，甲醇转化率可达78.48%.提出了等离子体-催化剂协同作用下水蒸气-甲醇重整制氢的可能机理。
Non-thermal plasma is an effective technology that produces hydrogen from methanol by plasma reforming. In this study, hydrogen was produced via methanol steam reforming in a dielectric barrier discharge micro-plasma reactor filled with a Cu/Al2O3catalyst. Comparative experimental results obtained using the reactor with and without catalyst are reported. The methanol conversion and hydrogen yield with the activated catalyst were 17.89 and 21.86 % higher than those without the catalyst. The primary gaseous products changed from H2and CO to H2and CO2after adding the Cu/Al2O3catalyst. Methanol conversion increased with the discharge frequency and input power and decreased with an increase in the liquid feed rate. Methanol conversion reached 78.48 % over the Cu/Al2O3catalyst at a 1.0 steam-to-carbon ratio, an 18.00 ± 0.05 kHz discharge frequency, 18.70 W of input power, 10.0 mL/min Ar flow rate and 0.0165 mL/min liquid feed rate. A plausible mechanism for hydrogen generation during steam–methanol reforming using the plasma–catalyst synergy effect is presented.