Oligomerization of Propene Over ZSM-5 Zeolite with Different Si/Al Molar Ratio

Propene oligomerization using ZSM-5 zeolite with different molar ratio of Si/Al and reaction condition was studied. The Si/Al ratio of zeolite reflects the number and strength of the acid sites. ZSM-5 zeolite of different Si/Al molar ratios in the range of 10-50 was first synthesized and then oligomerization reaction was carried using these zeolites at temperature 250 - 400 °C, weight hourly space velocity (WHSV) of propene 0.5-3.14 h-1 and atmospheric pressure. Analysis of the liquid product showed that by increasing the temperature up to 300 °C, the C11 + selectivity was increased and above this temperature, the C11 + hydrocarbons decreased. The results also, demonstrated that the C11 + content of the product reduced with increasing the WHSV. The synthesized ZSM-5 zeolites were characterized using XRD, FT-IR, SEM, EDX, TG-DTA, BET and NH3-TPD techniques.

کلیدواژه ها:

synthesis ، ZSM-5 ، zeolite ، characterization ، catalysis ، propene ، oligomerization ، liquid fuels