Butene Catalytic Cracking to Propylene over Iron and Phosphorus Modified HZSM-5

Butene Catalytic Cracking to Propylene over Iron and Phosphorus Modified HZSM-5

Type	Journal Article
Author	Jianwen Li
Author	Hongfang Ma
URL	Free Full Text Source:  http://www.waset.org/publications/10001877
Volume	9
Issue	5
Publication	International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering
Date	2015
Abstract	HZSM-5 zeolites modified by iron and phosphorus were applied in catalytic cracking of butene. N 2 adsorption and NH 3 -TPD were employed to measure the structure and acidity of catalysts. The results indicate that increasing phosphorus loading decreased surface area, pore volume and strong acidity of catalysts. The addition of phosphorus significan tly decreased butene conversion and promoted propylene selectivity. The catalytic performance of catalyst was strongly dependen t on the reaction conditions. Appropriate reaction conditions could suppress side reactions and enhance propylene selectivity.