程序升温脱附法研究丙烯齐聚磷酸盐催化剂

STUDIES OF THE PHOSPHATE CATALYST FOR PROPENE OLIGOMERIZATION WITH TEMPERATURE PROGRAMMED DESORPTION

程序升温脱附法研究丙烯齐聚磷酸盐催化剂张晓东，徐铸德，潘声云，冯伟（浙江大学化学系．杭州３１００２７）关键词程序升温脱附，磷酸硼，丙烯，齐聚磷酸盐催化剂是一类有应用前景的固体酸催化剂．本文使用程序升温脱附（ＴＰＤ）方法研究用于丙烯齐聚的磷酸硼催化剂［...

Boron phosphate catalyst for propene oligomerization has been studied by TPD method. The results show that the TPD spectra reflect substantially the dehydration process of the free phosphoric acids on the catalyst surface, and the catalytic activity may mainly be attributed to these phosphoric acids. Calcination can severely affect the catalyst.When calcined in static air, all components of the surface acids seem to be reduced near evenly, while only the components which can dehydrate below the calclnation temperature are eliminated when calcined in flow nitrogen.