%0 Journal Article
	%A Jianwen Li and  Hongfang Ma and  Haitao Zhang and  Qiwen Sun and  Weiyong Ying
	%D 2014
	%J International Journal of Chemical and Molecular Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 91, 2014
	%T Catalytic Cracking of Butene to Propylene over Modified HZSM-5 Zeolites
	%U https://publications.waset.org/pdf/9998777
	%V 91
	%X Catalytic cracking of butene to propylene was carried out in a continuous-flow fixed-bed reactor over HZSM-5 catalysts modified by nickel and phosphorus. The structure and acidity of catalysts were measured by N2 adsorption, NH3-TPD and XPS. The results revealed that surface area and strong acid sites both decreased with increasing phosphorus loadings. The increment of phosphorus loadings reduced the butene conversion but enhanced the propylene selectivity and catalyst stability.

	%P 654 - 657