Masoud Navaei Shirazi - Department of Applied Chemistry and Chemical Engineering, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
Naser Hadi - Department of Applied Chemistry and Chemical Engineering, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
Aligoli Niaei - Department of Applied Chemistry and Chemical Engineering, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
Dariush Salari - Department of Applied Chemistry and Chemical Engineering, Faculty of Chemistry, University of Tabriz, Tabriz, Iran

Effect of the modified zeolites with different amount of phosphorous (P/HZSM-5) on catalytic performance for the methanol to propylne (MTP) process was investigated. The modification of catalysts were carried out by wet impregnation and dry impregnation methods and the effect ofthat objects were studied on the catalytic performance of HZSM-5 (SiO2/Al2O3=100) zeolites inMTP process. The investigation of product distribution showed that the selectivity to propylenedecreased with increasing phosphorous content. The higher propylene selectivity achieved withdry impregnation method.

Methanol to propylene, Propylene selectivity, HZSM-5 nano catalyst, P modification, Impregnation methods