丙烯在Zr/HZSM-5催化剂上齐聚反应性能的研究

STUDY ON PROPYLENE OLIGOMERIZATION OVER Zr/ HZSM-5 CATALYST

考察了Zr/HZSM 5分子筛催化剂对丙烯齐聚反应的催化性能 ,发现该催化剂在温和的反应条件下对丙烯齐聚具有较高的活性和三聚、四聚、五聚选择性。采用NH3 TPD、吡啶吸附、IR光谱等方法测定了催化剂表面的酸量与酸强度 。

The activity and selectivity of Zr/HZSM 5 catalysts for propylene oligomerization are investigated, which showed that this type of catalyst has high activity and selectivity to trimer, tetramer and pentamer under mild reaction conditions NH 3 TPD and pyridine IR spectra are used to characterize the surface acidity of Zr/HZSM 5 catalysts and the result shows the moderately acid strong sites is beneficial to form heavy products such as trimer, tetramer, pentamer etc