US 11,713,287 B2
Energy efficient steam cracking process
Muhammad Kashif Nazir, Jubail Industrial (SA); Ahmad J. Al-Rebeh, Jubail Industrial (SA); Omar Hassan Al-Amoudi, Jubail Industrial (SA); and Saud S. Jebreen, Jubail Industrial (SA)
Assigned to SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom (NL)
Appl. No. 17/760,457
Filed by SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom (NL)
PCT Filed Feb. 11, 2021, PCT No. PCT/IB2021/051141
§ 371(c)(1), (2) Date Aug. 10, 2022,
PCT Pub. No. WO2021/161219, PCT Pub. Date Aug. 19, 2021.
Claims priority of provisional application 62/976,984, filed on Feb. 14, 2020.
Prior Publication US 2023/0134731 A1, May 4, 2023
Int. Cl. C10G 9/36 (2006.01); C07C 5/327 (2006.01)
CPC C07C 5/327 (2013.01) 20 Claims
OG exemplary drawing
 
1. A method for steam cracking of hydrocarbons, the method comprising:
(a) heating a hydrocarbon feed stream with a first quench water stream to form a heated hydrocarbon feed stream and a second quench water stream having a temperature lower than the first quench water stream;
(b) steam cracking the heated hydrocarbon feed stream to form a cracked stream comprising cracked gases;
(c) contacting the cracked stream with quench water to form a gaseous stream comprising quenched cracked gases and a crude water stream comprising heated quench water and pyrolysis gasoline; and
(d) separating the crude water stream to form the first quench water stream.