Abstract

The thermobaric and concentrational stresses, which arise during the operation of a membrane element under cyclic conditions, can result in the violation of the integrity of a membrane comprising an element and in failure of the element. Studies of the effect of thermobaric cycling in a hydrogen atmosphere at operating parameters (pressure differential, temperature, time of operation) on the properties of membranes allow us to determine the optimum operation conditions of the membrane element. The stability of the Pd–6 wt % In–0.5 wt % Ru–1 wt % Co membrane structure is estimated using the studied temperature dependence of the specific hydrogen permeability of the membrane during its operation in a hydrogen atmosphere, and the possibility of efficient operation of the membrane under given conditions in a temperature range of 250–600°C is noted. The surface of the Pd–6 wt % In–0.5 wt % Ru–1 wt % Co membrane subjected to thermobaric cycling in a commercial-purity hydrogen atmosphere is studied by atomic force microscopy and X‑ray diffraction analysis.

中文翻译：

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Pd–6 wt％In–0.5 wt％Ru–1 wt％Co膜在循环生产高纯氢过程中的运行稳定性

摘要

在膜元件在循环条件下操作期间产生的热压应力和集中应力会导致破坏包括元件的膜的完整性并导致元件失效。对氢在工作参数（压差，温度，操作时间）下的热压循环对膜性能的影响的研究使我们能够确定膜元件的最佳操作条件。使用研究过的膜在氢气氛中的比氢渗透率与温度的相关性以及有效的可能性，可以估算出Pd–6 wt％In–0.5 wt％Ru–1 wt％Co膜结构的稳定性。注意在给定条件下250-600°C的温度下膜的操作。