US 12,404,454 B2
System and process for converting waste plastic into fuel
Anthony F. Tenore, Yonkers, NY (US); David Fowler, Yonkers, NY (US); Oluwadare Oluwaseun, Yonkers, NY (US); and Anthony N. Tenore, Yonkers, NY (US)
Assigned to Braven Environmental, LLC, Yonkers, NY (US)
Filed by Braven Environmental, LLC, Yonkers, NY (US)
Filed on Sep. 14, 2023, as Appl. No. 18/467,217.
Application 16/907,595 is a division of application No. 15/641,471, filed on Jul. 5, 2017, granted, now 10,731,082.
Application 18/467,217 is a continuation of application No. 16/907,595, filed on Jun. 22, 2020, granted, now 11,773,330.
Claims priority of provisional application 62/493,445, filed on Jul. 5, 2016.
Prior Publication US 2024/0067880 A1, Feb. 29, 2024
Int. Cl. C10B 47/44 (2006.01); B01D 53/00 (2006.01); B30B 9/12 (2006.01); C10B 31/08 (2006.01); C10B 53/07 (2006.01); C10G 1/02 (2006.01); C10G 1/10 (2006.01); C10K 1/02 (2006.01); C10K 1/04 (2006.01)
CPC C10B 47/44 (2013.01) [B01D 53/002 (2013.01); B30B 9/121 (2013.01); C10B 31/08 (2013.01); C10B 53/07 (2013.01); C10G 1/02 (2013.01); C10G 1/10 (2013.01); C10K 1/026 (2013.01); C10K 1/04 (2013.01); B01D 2257/702 (2013.01); C10G 2300/1003 (2013.01); C10G 2400/02 (2013.01); C10G 2400/04 (2013.01); Y02P 20/133 (2015.11); Y02P 20/143 (2015.11)] 20 Claims
OG exemplary drawing
 
1. A pyrolysis system for processing plastic, comprising:
an extruder comprising an elongate cantilevered drive shaft connected to a drive coupling, the drive shaft being housed in a tubular barrel housing surrounded at least partially by one or more clamshell heaters, wherein the drive shaft includes auger flights; and
a reactor configured to process pre-processed material supplied via the extruder at an input end, the reactor comprising:
a hollow upper reactor tube including a first screw conveyor within the hollow portion of the upper reactor tube, configured to receive the pre-processed material;
a hollow lower reactor tube connected to the upper reactor tube via a connecting collar, including a second screw conveyor within the hollow portion of the lower reactor tube, configured to receive partially pyrolyzed material from the upper reactor tube; and
a plurality of clamshell heaters surrounding the upper and lower reactor tubes, defining a plurality of individual heating zones.