摘要
本文应用静态循环装置对硅酸铝担载的Ni催化剂上丙烯齐聚反应的诱导期变化规律及影响因素进行了比较系统的考察，并借助EPR技术考察了反应诱导期的本质。发现Ni2+在一定条件下还原为Ni+，以及Ni+与吸附态丙烯配位的过程是造成反应诱导期的本质因素。
An induction period is found in propylene oligomerization over silica-alumina supported nickel catalys (Ni-SA).The affecting factors and the nature of the induction period were invesitgated by means of static recirculatiobn apparatus and EPR spectra, Results show that the appearance of induction period is due to the reduction of bivalent Ni2+ ions to univalent Ni+ ions and an[Ni(C3H6)x]+ form by the interaction of Ni+ ions with propylene molecules.
出处
《石油与天然气化工》
CAS
CSCD
北大核心
1998年第4期200-204,共5页
Chemical engineering of oil & gas
关键词
丙烯
齐聚反应
镍催化剂
反应诱导期
propylene oligomerization, nickel calalyst, induction period
