US 12,012,555 B2
Turbulent/fast fluidized bed reactor with baffles to maximize light olefin yields
Mayank Kashyap, Missouri City, TX (US)
Assigned to SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom (NL)
Appl. No. 17/626,761
Filed by SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom (NL)
PCT Filed Jul. 30, 2020, PCT No. PCT/IB2020/057228
§ 371(c)(1), (2) Date Jan. 12, 2022,
PCT Pub. No. WO2021/024119, PCT Pub. Date Feb. 11, 2021.
Claims priority of provisional application 62/883,072, filed on Aug. 5, 2019.
Prior Publication US 2022/0235281 A1, Jul. 28, 2022
Int. Cl. C10G 11/18 (2006.01); B01J 8/00 (2006.01); B01J 8/18 (2006.01); B01J 8/26 (2006.01); B01J 8/38 (2006.01); B01J 29/06 (2006.01)
CPC C10G 11/18 (2013.01) [B01J 8/0055 (2013.01); B01J 8/1845 (2013.01); B01J 8/26 (2013.01); B01J 8/388 (2013.01); B01J 29/06 (2013.01); B01J 2208/00017 (2013.01); B01J 2208/00539 (2013.01); B01J 2208/00557 (2013.01); B01J 2208/0084 (2013.01); B01J 2208/00911 (2013.01); C10G 2300/1044 (2013.01); C10G 2400/20 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of producing an olefin, the method comprising:
contacting, in a fast fluidized bed reactor, naphtha with catalyst particles of a fast-fluidized bed having a superficial gas velocity (SGV) in a range of 1 to 6.5 m/s and under first reaction conditions sufficient to produce a first product comprising one or more olefins and/or one or more aromatics;
flowing effluent of the fast fluidized bed reactor to a riser reactor, the effluent of the fast fluidized bed reactor comprising (1) unreacted hydrocarbons of the naphtha, (2) the first product, and (3) the catalyst particles; and
contacting, in the riser reactor, the unreacted hydrocarbons of the naphtha, the first product, and the at least some of the catalyst particles under second reaction conditions sufficient to produce a second product comprising one or more olefins.