Disclosure of water roles in gliding arc plasma reforming of methanol for hydrogen production
Disclosure of water roles in gliding arc plasma reforming of methanol for hydrogen production
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DOI：
10.1002/ppap.202000069
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发表时间：
2020-05
影响因子：
3.5
通讯作者：
Hao-Yu Lian;Jing‐Lin Liu;Xiao‐Song Li;Aimin Zhu
中科院分区：
文献类型：
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作者：
Hao-Yu Lian;Jing‐Lin Liu;Xiao‐Song Li;Aimin Zhu
为了揭示水在甲醇等离子体重整制氢中的作用，研究了水浓度在0- 95mol%范围内的滑动弧放电特性、发射光谱和反应行为。可以得出结论，随着水浓度变化的反应行为来自于水作为均相催化剂、CO氧化剂和副产物的三种作用。水的前两种作用有利于产氢。水的副产物作用，伴随着烃的形成，这对氢气的产生是不利的，并且可以通过水在高于33摩尔% H2O的均相催化几乎完全抑制。作为氧化剂，水的转化受电弧气体温度下的热力学平衡控制。
To disclose water roles in plasma reforming of methanol for hydrogen production, gliding arc discharge characteristics, optical emission spectra, and reaction behavior are investigated over a water concentration range of 0–95 mol%. It can be concluded that the varied reaction behavior with water concentration derives from three water roles as a homogeneous catalyst, CO oxidant, and side‐product. The former two roles of water are beneficial for hydrogen production. The side‐product role of water, accompanied by hydrocarbons formation, which is disadvantageous to hydrogen production and can be almost fully inhibited by the homogeneous catalysis of water at above 33 mol% H2O. As an oxidant, water conversion is controlled by the thermodynamic equilibrium at the gas temperature of arc.