US 11,851,622 B1
Methods for processing a hydrocarbon oil feed stream utilizing a gasification unit and steam enhanced catalytic cracker
Aaron Chi Akah, Dhahran (SA); Qi Xu, Dhahran (SA); Musaed Salem Al-Ghrami, Dammam (SA); and Zhonglin Zhang, Dhahran (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Jul. 15, 2022, as Appl. No. 17/865,787.
Int. Cl. C10G 69/06 (2006.01); C10J 3/82 (2006.01); C01B 3/24 (2006.01); B01J 19/24 (2006.01)
CPC C10G 69/06 (2013.01) [B01J 19/245 (2013.01); C01B 3/24 (2013.01); C10J 3/82 (2013.01); B01J 2219/0004 (2013.01); C01B 2203/0266 (2013.01); C01B 2203/062 (2013.01); C10G 2300/301 (2013.01); C10G 2300/308 (2013.01); C10G 2300/4018 (2013.01); C10G 2400/20 (2013.01); C10G 2400/22 (2013.01); C10G 2400/30 (2013.01); C10J 2300/1603 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An integrated process for upgrading a hydrocarbon oil feed stream utilising a gasification unit and steam enhanced catalytic cracker, the method comprising:
solvent deasphalting the hydrocarbon oil stream to form at least a deasphalted oil stream and heavy residual hydrocarbons, the heavy residual hydrocarbons comprising at least asphaltenes;
processing the heavy residual hydrocarbons in a gasification unit to form syngas and gasification residue;
hydrotreating the deasphalted oil stream to form a light C5+ hydrocarbon stream and a heavy C5+ hydrocarbon stream;
steam enhanced catalytically cracking the light C5+ hydrocarbon stream in a first steam enhanced catalytic cracker to form a light steam enhanced catalytically cracked product comprising olefins, benzene, toluene, xylene, naphtha, or combinations thereof; and
steam enhanced catalytically cracking the heavy C5+ hydrocarbon stream in a second steam enhanced catalytic cracker to form a heavy steam enhanced catalytically cracked product comprising olefins, benzene, toluene, xylene, naphtha, or combinations thereof, and wherein,
a first ratio of gas hourly space velocity of steam to gas hourly space velocity of light C5+ hydrocarbon stream in the first steam enhanced catalytic cracker is less than a second ratio of gas hourly space velocity of steam to heavy C5+ hydrocarbon stream in the second steam enhanced catalytic cracker,
the first ratio is from 0.2 to 0.8, and
the second ratio is from 0.8 to 1.0.