The influence of hydrogen sulfide-to-hydrogen partial pressure ratio on the sulfidization of Pd and 70 mol% Pd–Cu membranes

作者: Osemwengie Iyoha , Robert Enick , Richard Killmeyer , Bryan Morreale

DOI: 10.1016/J.MEMSCI.2007.07.032

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摘要: The influence of H2S-to-H2 partial pressure ratio on the sulfidization Pd and 70 mol% Pd–Cu membrane alloys was studied using various H2S-containing gas mixtures. membranes exposed to H2S mixtures were in very good agreement with thermodynamic calculations used this study, resisting when ratios below equilibrium value predicted for Pd4S formation, experiencing above values. membranes, however, exhibited deviations from values, at some conditions close values which expected, resistance expected. This phenomenon attributed alloy ideality, probably due Cu segregation surface.

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