Zeolite catalysts with paired heteroatoms and methods thereof
AssigneesBASF SE, The Regents of the University of Cali Fornia
InventorsMichael Brandon SCHMITHORST, Subramanian PRASAD, Bradley F. CHMELKA, Ahmad MOINI, Vivek VATTIPALLI
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Abstract
The present disclosure relates to zeolite catalysts having an aging durability and improved catalytic activity. For example, the zeolite catalysts comprise a specific aluminum distribution, e.g., the positioning of two framework aluminum atoms in the zeolite structure at third-nearest-neighbor (3NN) relative positions in the framework. The zeolite catalysts have two tetrahedrally coordinated AI sites that are separated by two tetrahedrally coordinated Si sites. The disclosure is also directed to process and methods for their characterization and usage.
Claims20
A zeolite catalyst with paired aluminum atoms, wherein the paired aluminum atoms are third-nearest neighbors (3NN) in a zeolite structure and wherein the zeolite catalyst has an aging durability, an improved catalytic activity, or a combination thereof.
Dependencies are inferred from the claim text.