MONOLITHIC ZEOLITE STRUCTURES WITH AND WITHOUT HIERARCHICAL PORE STRUCTURES AND METHODS FOR PRODUCING THE SAME

摘要

Monolithic zeolite structures with hierarchical pore structures and methods for producing monolithic zeolite structures without the use of a solid template are provided. A silica source, an alumina source, and a cation base are mixed to form a reaction mixture. The reaction mixture is aged under conditions sufficient to produce a precursor zeolite gel by hydrolysis. The precursor zeolite gel is heated at a temperature and for a period of time sufficient to crystallize and agglomerate the precursor zeolite gel into the monolithic zeolite structure. The addition of polymer to the reaction mixture provides the monolithic zeolite structure with a hierarchical pore structure.