화학공학소재연구정보센터
Petroleum Chemistry, Vol.57, No.3, 215-221, 2017
Butane-butylene fraction cracking over modified ZSM-5 zeolite
The effect of temperature (530-590A degrees C), weight hourly space velocity (2.5-7.0 h(-1)), and the Si/Al ratio of the ZSM-5 zeolite (30, 55, 80, 300) on the cracking of a butane-butylene fraction containing 85 wt % butylenes has been studied. The HZSM-5 zeolite has been modified with phosphorus. The effect of modification on the catalyst activity in cracking reactions has been studied. The ethylene and propylene yield achieves 38.4 wt % at a degree of conversion of butylenes of 81.5%. The ethylene to propylene ratio is 0.55.