US 12,139,671 B2
Systems and methods for recycling waste plastics
Sean Crawford, Tigard, OR (US); and Barry Cavinaw, Wilsonville, OR (US)
Assigned to AGILYX CORPORATION, Tigard, OR (US)
Filed by Agilyx Corporation, Tigard, OR (US)
Filed on Jun. 29, 2022, as Appl. No. 17/853,766.
Application 17/853,766 is a continuation of application No. 17/544,613, filed on Dec. 7, 2021, granted, now 11,407,947.
Claims priority of provisional application 63/123,965, filed on Dec. 10, 2020.
Prior Publication US 2023/0159830 A1, May 25, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C10G 1/10 (2006.01); B01J 6/00 (2006.01); C10B 53/07 (2006.01); C10B 57/02 (2006.01); C10B 57/06 (2006.01); C10B 57/08 (2006.01); C10G 1/02 (2006.01)
CPC C10B 57/06 (2013.01) [B01J 6/008 (2013.01); C10B 53/07 (2013.01); C10B 57/02 (2013.01); C10B 57/08 (2013.01); C10G 1/02 (2013.01); C10G 2300/1003 (2013.01); C10G 2300/202 (2013.01); C10G 2300/80 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method of processing a waste plastic feedstock, the method comprising:
pyrolyzing a supply of the waste plastic feedstock within a primary pyrolysis reactor to generate a primary hydrocarbon gas stream;
condensing out a tars product from the primary hydrocarbon gas stream from the primary pyrolysis reactor with a primary quenching apparatus;
pyrolyzing the tars product within a secondary pyrolysis reactor to generate a secondary hydrocarbon gas stream;
condensing out a supplemental hydrocarbon product from the secondary hydrocarbon gas stream from the secondary pyrolysis reactor with a secondary quenching apparatus for further processing;
discharging a primary altered hydrocarbon gas stream from the primary quenching apparatus;
discharging a supplemental altered hydrocarbon gas stream from the secondary quenching apparatus; and
combining the supplemental altered hydrocarbon gas stream from the secondary quenching apparatus with the primary altered hydrocarbon gas stream from the primary quenching apparatus to form a combined altered hydrocarbon gas stream for further processing.