加氢催化剂性能下降的原因及再生恢复

Reasons for the Degradation of Hydrogenation Catalyst and Its Regeneration Were Discussed

催化剂在工业应用中可以加快或降低化学反应速度,提高选择性,而随着使用时长的增加,催化性能逐步下降,催化剂的反应速率随着使用时间的增加而下降的现象就是催化剂失活。催化剂性能下降,主要有催化剂物理中毒、催化剂化学中毒和催化剂结构变化等的原因。基于此,对加氢催化剂性能下降的原因进行探讨,深入研究和分析了加氢催化剂活性再生恢复及注意事项。

Catalyst In industrial application can accelerate or reduce the chemical reaction speed and improve the selectivity.With the increase of service time,the catalytic performance gradually decreases.The phenomenon that the reaction rate of catalyst decreases with the increase of service time is catalyst deactivation.The decline of catalyst performance is mainly caused by physical poisoning of catalyst,chemical poisoning of catalyst and change of catalyst structure.This paper discusses the reasons for the decline of hydrogenation catalyst performance,deeply studies and analyzes the regeneration and recovery of hydrogenation catalyst activity and matters needing attention.