Hydrogen Separation Membranes

本项目的目标是开发一种复合金属膜 用于在高温下的氢气分离/纯化。 的 膜将由钛合金夹在两个 钯或镍的薄膜（约微米厚） 用于防止钛的表面氧化。 早些时候 实验表明，通过复合材料的氢流量很高 膜在200 oC。 在项目的这一阶段， 程序将进一步改进，温度范围将 延长至500 oC。 随后，将进行成本分析， 这个过程和其他过程。 目前的工艺都是在室温下进行的。 这种膜的成功开发将使氢 在高温下分离可能。

The objective of this project is to develop a composite metal membrane for hydrogen separation/purification at elevated temperatures. The membrane will be composed of a titanium alloy sandwiched between two thin (about a micron thickness) films of either palladium or nickel for protection from surface oxidation of titanium. Earlier experiments showed high fluxes of hydrogen through the composite membrane at 200oC. In this phase of the project, the fabrication procedure will be further improved, and the temperature range will be extended to 500oC. Futhermore, cost analyses will be made to compare this process and other processes. Current processes are all operating at the room temperature. Successful development of this membrane would make hydrogen separation at high temperature possible.