冯冬梅,王圆媛,王德峥,王金福

• 1:清华大学化学工程系反应工程实验室

摘要(Abstract)：

二甲醚(DME)由于其清洁环保特性成为燃料电池电动汽车的理想氢源之一。在200~300℃温度范围,1.0×105~4.0×105Pa的压力范围内,Pd-Ag-Au-Ni合金膜对H2与Ar和N2的分离系数接近无穷大,同时,膜具有较好的透氢稳定性。通过实验研究了膜反应器中Ar、N2、CO、CO2、H2O和DME等气体存在时对钯银合金膜透氢性能的影响。实验结果表明,Ar、N2、DME基本对透氢性能无影响,CO2、CO、H2O存在时,会影响氢气的渗透性。三者当中,CO2的影响最小,混合气中H2O比CO对透氢性能的影响大,这是由于H2O在钯膜表面有更大的竞争吸附作用。本研究结果为更详细地研究二甲醚水蒸气重整制氢过程提供了重要参考依据。

关键词(KeyWords)： 氢能;膜反应器;渗透性;竞争吸附;二甲醚

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 冯冬梅,王圆媛,王德峥,王金福

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