US 11,898,107 B1
Systems and methods for processing hydrocarbon feedstocks
Ki-Hyouk Choi, Dhahran (SA); Joo-Hyeong Lee, Dhahran (SA); Mohammed Saad Aldossary, Dhahran (SA); and Ali Mahmoud Al-Somali, Dhahran (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Dec. 16, 2022, as Appl. No. 18/067,234.
Int. Cl. C10G 45/26 (2006.01); B01D 11/04 (2006.01); B01J 3/00 (2006.01); B01D 17/04 (2006.01); B01D 19/00 (2006.01); B01D 53/02 (2006.01)
CPC C10G 45/26 (2013.01) [B01D 11/0407 (2013.01); B01D 11/0492 (2013.01); B01D 17/047 (2013.01); B01D 19/0068 (2013.01); B01J 3/008 (2013.01); B01D 53/02 (2013.01); C10G 2300/202 (2013.01); C10G 2300/206 (2013.01); C10G 2300/207 (2013.01); C10G 2300/301 (2013.01); C10G 2300/308 (2013.01); C10G 2300/4006 (2013.01); C10G 2300/4012 (2013.01); C10G 2300/4081 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for processing a hydrocarbon feedstock, the method comprising:
contacting the hydrocarbon feedstock and a product emulsion with supercritical carbon dioxide in a supercritical carbon dioxide extraction unit to form at least an extract emulsion and a pitch emulsion;
contacting at least a portion of the pitch emulsion with supercritical water in a supercritical water gasification unit to form a gasified product;
separating the gasified product into at least a product gas and the product emulsion, the product emulsion comprising water and one or more hydrocarbons; and
recycling at least a portion of the product emulsion to the supercritical carbon dioxide extraction unit, wherein contacting the product emulsion with the supercritical carbon dioxide breaks at least a portion of the product emulsion.