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The high‐temperature H2S removal at 500–700 °C was conducted over CuO‐CeO2/ZSM‐5 composites prepared with sol‐gel method. 7Cu3Ce/ZSM‐5 partially reacting at 500 °C yielded Cu7S4 and Cu2S. The major sulphidation products at 600 °C were Ce2O2S, Cu2S, CuS, and S. Sulphidation of 7Cu3Ce/ZSM‐5 at 700 °C yielded Ce2S3, Cu2S, Cu2S, and S. Sulphidation of 7Cu3Ce/ZSM‐5 with 20 % H2 and 20 % CO generated the...
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