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首页> 外文会议>North American Membrane Society Annual Meeting >Sulfur poisoning studies of high permeance Pd/Cu alloy membranes for H2 separation from coal gas
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Sulfur poisoning studies of high permeance Pd/Cu alloy membranes for H2 separation from coal gas

机译：高渗透Pd / Cu合金膜的硫中毒研究H2分离煤气

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The use of Pd membranes in catalytic membrane reactors has been much lauded for their H2 separation properties. However, small quantities of H2S present in the gas stream destroy the Pd membranes by forming bulk sulfides [1]. Pd/Cu alloy membranes have sparked interest due to their greater H2S tolerance [2]. However, the sulfur tolerant fcc alloy phase has a low H2 permeance [3]. This work compares two techniques for obtaining both H2S resistance and a high H2 permeance in Pd/Cu alloy membranes by fabricating non-homogeneous Pd/Cu alloy membranes. Furthermore, the membranes were tested extensively in H2, He and H2S/H2 atmospheres ranging from 0.2 - 50 ppm and in the temperature range of 250 - 500°C for several thousand hours.
机译：在催化膜反应器中使用PD膜已经很多，对于它们的H 2分离性能很大。然而，通过形成总硫化物[1]，气流中存在的少量H 2 S破坏PD膜[1]。由于其较高的H 2 S耐受性，Pd / Cu合金膜引起了兴趣[2]。然而，耐硫的FCC合金相具有低H2渗透性[3]。该工作通过制造非均相Pd / Cu合金膜，比较了两种用于在Pd / Cu合金膜中获得H2S电阻和高H2渗透性的技术。此外，膜在H 2，H 2，H 2 S / H 2大气中进行了广泛的测试，范围为0.2-50ppm，在250-500℃的温度范围内达到几千小时。

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