关键词: 歧化, 铼基催化剂, 钼基催化剂, 钨基催化剂

Abstract: The research of C₄-olefin to produce propylene was the emphasis of aliphatic olefin metathesis technology，but attentions were also paid to longer-chain aliphatic olefins metathesis reaction. The progress of the metathesis reaction of longer-chain aliphatic olefins over rhenium based catalysis，molybdenum based catalysis and tungsten based catalysis were introduced. The study of longer-chain olefin metathesis over tungsten based catalyst，including the optimal operating condition of 1-hexene self-metathesis，1-heptene self-metathesis and 1-octene self-metathesis. The effect of pretreatment on metathesis performance of tungsten based catalyst is primarily introduced. Moreover，the studies of deactivation of metathesis catalyst by oxygenate poisoning and deactivation of tungsten based catalyst by coke formation are also introduced.

Key words: metathesis, rhenium based catalyst, molybdenum based catalyst, tungsten based catalyst