Highly selective formation of propylene from methanol over high-silica EU-1 zeolite catalyst

High-silica EU-1 zeolite (SiO2/Al2O3=similar to 400) was tested in methanol to propylene (MTP) reaction and was found to be a very efficient catalyst. In comparison with the other three high-silica zeolites, i.e. ZSM-48, ZSM-5, and beta zeolites, a higher propylene selectivity (52%) and remarkably high propylene/ethylene (P/E) ratio (15) were obtained under the operating conditions of T=450 degrees C, P=0.1 MPa, and WHSV=1.5 h(-1). Besides, a substantially low amount of C5+ hydrocarbons, especially aromatics is another prominent feature of the product distribution over high-silica EU-1 catalyst. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.