US 12,473,499 B2
Light olefins yield improvement over light olefin selective catalyst
Khalid A. Al-Majnouni, Riyadh (SA); Wojciech Supronowicz, Riyadh (SA); Nabil Al-Yassir, Riyadh (SA); Talal Aldugman, Riyadh (SA); and Ahmed Alzenaidi, Riyadh (SA)
Assigned to SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom (NL)
Appl. No. 17/995,783
Filed by SABIC Global Technologies B.V., Bergen op Zoom (NL)
PCT Filed Mar. 22, 2021, PCT No. PCT/IB2021/052369
§ 371(c)(1), (2) Date Oct. 7, 2022,
PCT Pub. No. WO2021/214568, PCT Pub. Date Oct. 28, 2021.
Claims priority of provisional application 63/013,477, filed on Apr. 21, 2020.
Prior Publication US 2023/0167368 A1, Jun. 1, 2023
Int. Cl. C10G 11/05 (2006.01); B01J 29/08 (2006.01); B01J 29/40 (2006.01); C10G 11/14 (2006.01); C10G 11/18 (2006.01)
CPC C10G 11/182 (2013.01) [B01J 29/08 (2013.01); B01J 29/40 (2013.01); C10G 11/05 (2013.01); C10G 2300/1033 (2013.01); C10G 2300/708 (2013.01); C10G 2400/20 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for producing a light olefin, the method comprising:
(a) contacting a zeolite catalyst with a coke precursor comprising hexane, butadiene, or any combination thereof and forming a coke on the zeolite catalyst, to form a light olefin selective catalyst;
(b) contacting the light olefin selective catalyst with a hydrocarbon feed under conditions sufficient to catalytically crack at least a portion of the hydrocarbon feed to form a products stream comprising a light olefin and a spent catalyst;
(c) regenerating the spent catalyst to form a regenerated catalyst;
(d) using at least a portion of the regenerated catalyst as at least a portion of the zeolite catalyst in step (a); and
(e) repeating steps (a) to (d) at least two times, wherein the light olefin selective catalyst is more selective than the catalyst, in catalyzing formation of the light olefin by the catalytic cracking of the hydrocarbon feed;
wherein the catalyst to oil ratio in step (a) is 3 to 40 and the catalyst to oil ratio in step (b) is 3 to 40.