钯系催化剂硫化氢中毒及恢复

Study on H_2S poisoning and regeneration of Pd catalyst

对钯系催化剂的硫中毒及活性恢复措施进行了较系统的考察。结果表明,硫化氢会导致钯系催化剂中毒,使其活性下降;催化剂中毒后,如果提高反应温度,随着运转时间的延长,活性会有所恢复;中毒催化剂经再生,活性不能完全恢复;钯系加氢催化剂硫中毒是可逆的。

The process of H_2S poisoning and regeneration of Pd catalyst were investigated.The results showed that the H_2S poisoning of Pd catalyst was reversible and partly activity of catalyst could recover by increasing temperature.