Modified USY zeolitic catalyst for isomerization of alkylated aromatics, and method for isomerization of alkylated aromatics
AssigneeSaudi Arabian Oil Company
InventorsOmer Refa Koseoglu, Robert Peter Hodgkins
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Abstract
The present invention relates to a catalyst for isomerization of alkylated aromatics such as mixed xylenes, using xylene isomerization catalyst particles including post-framework modified USY zeolite in which zirconium atoms and/or titanium atoms and/or hafnium atoms form a part of a framework of an ultra-stable Y-type zeolite.
Claims17
A process for isomerization of a hydrocarbon feed comprising ortho-xylene and/or meta-xylene comprising contacting the hydrocarbon feed with isomerization catalyst particles containing a framework-substituted ultra-stable Y-type (USY) zeolite in which a portion of aluminum atoms constituting a zeolite framework thereof is substituted with zirconium atoms and/or titanium atoms and/or hafnium atoms, the framework-substituted USY zeolite being an active catalytic material or active support material, wherein the ortho-xylene and/or meta-xylene are converted to para-xylene.
Dependencies are inferred from the claim text.