摘要
本文从不同角度考察了水对SO2 -4 /ZrO2 催化正戊烷反应的影响。研究发现 ,少量水对催化剂有减活作用 ,但有可逆性 ,可以通过干燥气体吹扫重新恢复活性 ;反应中微量水对催化剂活性的影响 ,可以通过提高反应温度来消除 ;反应系统中存在大量水时 ,可以使催化剂的活性完全丧失 ,其原因是水降低了具有异构化活性的酸中心的强度 ,从而导致了失活。
The influence of water on SO ~2-_ 4/ZrO 2 catalyzed n-pentane isomerization from different angle is observed in the paper.It is found that a small amount of water deactivates the catalyst,but the deactivation is revertable.The catalyst will regain its activity by dry gas sweeping.In this reaction,increasing temperature can eliminate the influence of a small amount of water.When a large amount of water exists,the catalyst will lost its activity totally.The reason is water occupies the acid sites resulting in decrease of isomerization activity,and finally leads to deactivaty.
出处
《石油与天然气化工》
CAS
CSCD
北大核心
2000年第2期53-55,共3页
Chemical engineering of oil & gas
关键词
水
固体超强酸
正戊烷
催化
异构化
water,solid super acid,SO ~2-_ 4/ZrO 2,catalyzed reaction of pentane
