US 12,290,801 B2
Catalyst for aromatization of alkanes having 4 to 7 carbon atoms, process of making, and process of aromatics preparation by using thereof
Metta Chareonpanich, Muang Nonthaburi (TH); Waleeporn Donphai, Muang Samutsakhon (TH); Pariyawalee Sangteantong, Mueang Prachuap Khiri Khan (TH); Yutthana Wongnongwa, Ubon Ratchathani (TH); Siriporn Jungsuttiwong, Ubon Ratchathani (TH); Sitthiphong Pengpanich, Bangkok (TH); and Kaew-Arpha Thavornprasert, Bangkok (TH)
Assigned to PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED, Bangkok (TH)
Appl. No. 18/547,178
Filed by PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED, Bangkok (TH)
PCT Filed Sep. 23, 2021, PCT No. PCT/TH2021/000055
§ 371(c)(1), (2) Date Aug. 21, 2023,
PCT Pub. No. WO2022/182301, PCT Pub. Date Sep. 1, 2022.
Claims priority of application No. 2101001110 (TH), filed on Feb. 25, 2021.
Prior Publication US 2024/0131503 A1, Apr. 25, 2024
Prior Publication US 2024/0226868 A9, Jul. 11, 2024
Int. Cl. B01J 37/02 (2006.01); B01J 23/08 (2006.01); B01J 23/62 (2006.01); B01J 29/44 (2006.01); B01J 37/08 (2006.01); B01J 37/34 (2006.01); C07C 5/41 (2006.01)
CPC B01J 37/0244 (2013.01) [B01J 23/08 (2013.01); B01J 23/62 (2013.01); B01J 29/44 (2013.01); B01J 37/0236 (2013.01); B01J 37/08 (2013.01); B01J 37/346 (2013.01); C07C 5/417 (2013.01); B01J 2229/20 (2013.01); C07C 2523/62 (2013.01)] 42 Claims
OG exemplary drawing
 
1. A catalyst for aromatization of alkanes having 4 to 7 carbon atoms comprising zeolite, at least 1 transition metal from group VIII transition metal in a range of 0.1 to 2% by weight based on the total weight of the catalyst, and at least 1 metal from group IIIA metal in a range of 0.1 to 5% by weight based on the total weight of the catalyst, wherein said catalyst is prepared from a process comprising:
a) contacting a zeolite with a solution comprising at least 1 transition metal salt from group VIII transition metal to form a first mixture;
b) treating and drying the first mixture obtained from step a) with a microwave at a power in a range from 400 to 1,000 watts to form a first dried mixture;
c) contacting the first dried mixture obtained from step b) with a solution comprising at least 1 group IIIA metal salt to form a second mixture;
d) treating and drying the second mixture obtained from step c) with a microwave at a power in a range from 400 to 1,000 watts to form a second dried mixture; and
e) calcining the second dried mixture obtained from step d) at a temperature less than or equal to 650° C.