US 12,030,219 B2
Plastic blending methods, systems, and apparatus for efficiently reducing carbon footprints in refining systems and petrochemical processing systems
Venkata Krishnan Ramanujam, Sugar Land, TX (US); Srinivas Rajabahadur Arcot, Fulshear, TX (US); and Venkata Appala Nuti, Katy, TX (US)
Assigned to J Ray McDermott S. A, Houston, TX (US)
Filed by J. RAY MCDERMOTT, S.A., Houston, TX (US)
Filed on Apr. 5, 2022, as Appl. No. 17/657,993.
Claims priority of provisional application 63/171,380, filed on Apr. 6, 2021.
Prior Publication US 2022/0314497 A1, Oct. 6, 2022
Int. Cl. B29B 17/04 (2006.01); C10G 1/00 (2006.01)
CPC B29B 17/04 (2013.01) [C10G 1/002 (2013.01); B29B 2017/0468 (2013.01); C10G 2300/1003 (2013.01); C10G 2300/4081 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A plastic conversion unit, comprising:
a primary hopper configured to receive a plastic supply;
a primary shredder comprising an outlet and an inlet coupled to an outlet of the primary hopper, the primary shredder being configured to crush the plastic supply to a first granule size that is less than 5 millimeters;
a primary classifier comprising an outlet and an inlet coupled to the outlet of the primary shredder, the primary classifier configured to separate a portion of the plastic supply that are larger than the first granule size;
a secondary hopper comprising an outlet and an inlet coupled to the outlet of the primary classifier, the secondary hopper configured to receive the plastic supply of the first granule size from the primary classifier;
a secondary granulator comprising an outlet and an inlet coupled to the outlet of the secondary hopper, the secondary granulator being configured to crush the plastic supply to a plastic stock having a second granule size that is within a range of 10 nanometers to 0.1 microns; and
a secondary classifier comprising an outlet and an inlet coupled to the outlet of the secondary granulator, the secondary classifier being configured to separate the plastic stock to remove a portion having a granule size that is greater than 10 nanometers and generate a plastic feedstock.