	US 11,866,389 B1
	Processes of forming metal-doped zeolite catalysts with enhanced mesoporosity
Yaming Jin, Dhahran (SA); Ziyauddin S. Qureshi, Dhahran (SA); Abdullah M. Aitani, Khobar (SA); Omer Refa Koseoglu, Dhahran (SA); Mohammad Naseem Akhtar, Dhahran (SA); and Hassan Saeed Al-Awad Alasiri, Dhahran (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA); and King Fahd University of Petroleum and Minerals, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA); and King Fahd University of Petroleum and Minerals, Dhahran (SA)
Filed on Sep. 7, 2022, as Appl. No. 17/939,281.
Application 17/939,281 is a division of application No. 17/011,008, filed on Sep. 3, 2020, granted, now 11,465,950.
Int. Cl. B01J 29/40 (2006.01); C07C 2/42 (2006.01); B01J 23/06 (2006.01); B01J 23/00 (2006.01); B01J 35/10 (2006.01); B01J 37/00 (2006.01); B01J 37/04 (2006.01); B01J 37/08 (2006.01); C10G 35/06 (2006.01); C10G 35/095 (2006.01)

CPC C07C 2/42 (2013.01) [B01J 23/00 (2013.01); B01J 23/06 (2013.01); B01J 29/405 (2013.01); B01J 35/1042 (2013.01); B01J 35/1047 (2013.01); B01J 37/0018 (2013.01); B01J 37/04 (2013.01); B01J 37/088 (2013.01); C10G 35/06 (2013.01); C10G 35/095 (2013.01); C07C 2523/06 (2013.01); C07C 2523/08 (2013.01); C07C 2529/04 (2013.01); C07C 2529/40 (2013.01); C10G 2300/1037 (2013.01); C10G 2300/70 (2013.01)]

16 Claims

1. A process of forming a catalyst for aromatizing hydrocarbons, the process comprising:

enhancing a mesoporosity of a zeolite support by a base-leaching treatment, an acid-leaching treatment, or both to form a zeolite support having enhanced mesoporosity;

impregnating zinc or gallium on the zeolite support having enhanced mesoporosity to disperse the zinc or gallium on the zeolite support having enhanced mesoporosity, wherein the impregnating comprises:

mixing the zeolite support having enhanced mesoporosity with a solution containing zinc or gallium;

forming a slurry comprising the zeolite support having enhanced mesoporosity and the solution;

removing water from the slurry to form a paste; and

calcining the paste to form a zinc- or gallium-doped zeolite catalyst having a mesopore volume of greater than 0.09 cm³/g and less than 0.20 cm³/g.