MODIFIED ZEOLITE OMEGA AND METHODS FOR PREPARING AND FOR USING SAME

摘要

"MODIFIED ZEOLITE OMEGA AND METHODS FOR PREPARING AND FOR USING SAME" A high surface area and high silica to alumina ratio form of zeolite Omega is synthesized by hydrothermal crystallization from reaction systems containing one or more alkali metal cations and one or more organic templating agents, modified by calcination at a temperature sufficient to decompose the organic templating agents, ion-exchange, steam calcination and treatment with a low-pH aqueous ammonium ion solution. The resulting modified zeolite Omega is significantly improved with respect to catalytic activity and adsorption capacities for large molecular species.