中文摘要：

H2S 在的有限数量的存在 H2 富有不利地喂由于膜表面的 sulphidization 影响 Pd-Cu 膜浸透表演。一个理论模型被建议在反应调节的工业 water-gas-shift (WGS ) 下面在 H2S 的存在预言 Pd-Cu 膜的 S 容忍的表演。表面范围的想法和 Pd-Cu 表面上的 H2S 和 H2 的竞争吸附热力学在模型被介绍。 Pd-Cu 膜的表面 sulphidization 主要取决于 H2S 的压力比率到 H2 ，温度和 吸附S 的表面范围，即，表面上的 sulphidization 的出现直接没与体积作文和结构被联系[立方的集中的身体和集中的脸立方(电子消息传输方式或 fcc )] Pd-Cu 合金膜因为表面分离现象。为 H2S adsorption/sulphidization 反应的产生平衡方程被解决在大量温度上计算 H2S 的压力比率到 H2。模型的确认在操作条件的一个相当宽广的范围上通过在大量文学数据和模型计算之间的比较被执行。一个极其好的协议在不同盒子中被获得，并且这样，模型能服役为氢分离指导 S 抵抗的 Pd 合金膜材料的发展。

英文摘要：

The presence of a limited amount of H2S in H2-rich feed adversely affects the Pd-Cu membrane per-meation performance due to the sulphidization of the membrane surface. A theoretical model was proposed to pre-dict the S-tolerant performance of the Pd-Cu membranes in presence of H2S under the industrial water-gas-shift （WGS） reaction conditions. The ideas of surface coverage and competitive adsorption thermodynamics of H2S and H2 on Pd-Cu surface were introduced in the model. The surface sulphidization of the Pd-Cu membranes mainly de-pended on the pressure ratio of H2S to H2, temperature and S-adsorbed surface coverage, i.e., the occurrence of sulphidization on the surface was not directly related with the bulk compositions and structures [body centered cu-bic and face centered cubic （bcc or fcc）] of Pd-Cu alloy membranes because of the surface segregation phenomena. The resulting equilibrium equations for the H2S adsorption/sulphidization reactions were solved to calculate the pressure ratio of H2S to H2 over a wide range of temperatures. A validation of the model was performed through a comparison between lots of literature data and the model calculations over a rather broad range of operating condi-tions. An extremely good agreement was obtained in the different cases, and thus, the model can serve to guide the development of S-resistant Pd alloy membrane materials for hydrogen separation.