OXYGENATE CONVERSION CATALYST, PROCESS FOR THE PREPARATION OF AN OLEFINIC PRODUCT, AND PROCESS FOR THE PREPARATION OF AN OXYGENATE CONVERSION CATALYST

摘要

An oxygenate conversion catalyst comprising both a first molecular sieve having one-dimensional 10-membered ring channels, and a second molecular sieve having more-dimensional channels, wherein the second molecular sieve comprises MEL-type aluminosilicate; a process for the preparation of an olefinic product in the presence of the oxygenate conversion catalyst, and a process for the preparation of an oxygenate conversion catalyst.