	US 11,884,615 B2
	*Modified beta zeolitic (BEA) catalyst for isomerization of alkylated aromatics, and method for isomerization of alkylated aromatics**
Omer Refa Koseoglu, Dhahran (SA); and Robert Peter Hodgkins, Dhahramn (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Jan. 27, 2021, as Appl. No. 17/160,048.
Prior Publication US 2022/0234035 A1, Jul. 28, 2022
Int. Cl. C07C 5/27 (2006.01); B01J 21/06 (2006.01); B01J 29/70 (2006.01); B01J 29/12 (2006.01); B01J 29/14 (2006.01); B01J 37/00 (2006.01)

CPC C07C 5/2737 (2013.01) [B01J 21/063 (2013.01); B01J 21/066 (2013.01); B01J 29/126 (2013.01); B01J 29/146 (2013.01); B01J 29/7057 (2013.01); B01J 37/0009 (2013.01); C07B 2200/09 (2013.01); C07C 2521/06 (2013.01); C07C 2529/12 (2013.01); C07C 2529/14 (2013.01); C07C 2529/70 (2013.01)]

20 Claims

1. 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 framework-modified beta-type (*BEA) zeolite in which a portion of aluminum atoms constituting a zeolite framework thereof is substituted with zirconium atoms and/or hafnium atoms, wherein the framework-modified *BEA zeolite has a crystal lattice constant of a=1.260 to 1.270 nm, b=1.260 to 1.270 nm, and c=2.620 to 2.650 nm, a specific surface area of 400 to 800 m²/g, and a molar ratio of SiO₂to Al₂O₃of 10 to 70; and

the framework-modified *BEA zeolite being an active catalytic material or active support material;

wherein the ortho-xylene and/or meta-xylene are converted to para-xylene.