US 12,331,255 B2
Oil demetallation and de-ashing processing by neutralization and centrifuging of flocculated heavy asphaltene hydrocarbon content
Mitch Mace, Saraland, AL (US); Ted Longsdorf, Saraland, AL (US); Alex Ortells, Saraland, AL (US); and Kenny Huy, Saraland, AL (US)
Assigned to Tradebe Environmental Services, LLC, Merrillville, IN (US)
Filed by Tradebe Environmental Services, LLC, Merrillville, IN (US)
Filed on Jun. 8, 2023, as Appl. No. 18/331,377.
Claims priority of provisional application 63/351,547, filed on Jun. 13, 2022.
Prior Publication US 2023/0399574 A1, Dec. 14, 2023
Int. Cl. C10G 53/10 (2006.01); B01D 17/02 (2006.01); B01D 17/04 (2006.01); B01D 21/01 (2006.01); B01D 21/26 (2006.01)
CPC C10G 53/10 (2013.01) [B01D 17/0214 (2013.01); B01D 17/0217 (2013.01); B01D 17/047 (2013.01); B01D 21/01 (2013.01); B01D 21/262 (2013.01); C10G 2300/205 (2013.01); C10G 2300/206 (2013.01); C10G 2400/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method to demetal and de-ash oil feedstock into marine fuel, the method comprising the steps of:
adding sulfuric acid to oil feedstock to form acid treated oil, the sulfuric acid to strip the oil feedstock of metals;
adding de-emulsifier to the acid treated oil feedstock to aid in phase separation;
settling the acid treated oil feedstock to separate into clarified oil, water, and a rag layer;
centrifuging the clarified oil with a centrifuge running in a 3 phase configuration to remove water and solids from the clarified oil;
adding triethanol amine (TEA) to the centrifuged clarified oil to flocculate asphaltenes in the centrifuged clarified oil, creating TEA treated oil; and
centrifuging the TEA treated oil with a centrifuge running in a 2 phase configuration to remove the asphaltenes from the TEA treated oil to create marine fuel.