US 11,999,913 B2
UMO-sourced, clean, efficient, non-catalytic cracking and re-refining methods and apparatus
Paul S. Moote, Highland, UT (US)
Assigned to Arizona Fuel Operations I LLC, Scottsdale, AZ (US)
Filed by Arizona Fuel Operations I LLC, Scottsdale, AZ (US)
Filed on May 11, 2021, as Appl. No. 17/317,685.
Claims priority of provisional application 63/071,170, filed on Aug. 27, 2020.
Claims priority of provisional application 63/055,594, filed on Jul. 23, 2020.
Claims priority of provisional application 63/025,785, filed on May 15, 2020.
Prior Publication US 2021/0355391 A1, Nov. 18, 2021
Int. Cl. C10G 55/04 (2006.01); B01J 19/00 (2006.01); B01J 19/24 (2006.01); C10G 7/00 (2006.01); C10G 9/00 (2006.01)
CPC C10G 55/04 (2013.01) [B01J 19/0026 (2013.01); B01J 19/2405 (2013.01); C10G 7/00 (2013.01); C10G 9/00 (2013.01); B01J 2219/00247 (2013.01); C10G 2300/1007 (2013.01); C10G 2300/202 (2013.01); C10G 2300/205 (2013.01); C10G 2300/307 (2013.01); C10G 2300/4006 (2013.01); C10G 2400/04 (2013.01)] 19 Claims
 
1. A system for cracking a used lubricating oil (ULO), the system comprising:
a furnace having a conduit passing through the furnace, the conduit configured to maintain a velocity of a flow of the ULO within the conduit, the ULO including metal-bearing molecules, the velocity associated with a turbulent flow regime effective to resist carbonization of the ULO while heating to a first temperature effective to crack the metal-bearing molecules in the ULO to form metal constituents cracked from the metal-bearing molecules;
a separator operably connected to in fluid flow communication and downstream of the furnace, the separator configured to remove, from the flow, metallic constituents cracked from the metal-bearing molecules;
a scavenger in fluid flow communication with the separator and configured to remove sulfur from the flow; and
a fractional distillation column in fluid flow communication with and downstream of the separator, the fractional distillation column configured to receive from the separator the flow and distill the flow into a plurality of streams, each stream of the plurality of streams is associated with a corresponding boiling temperature range.