US 12,077,713 B2
Circular chemicals or polymers from pyrolyzed plastic waste and the use of mass balance accounting to allow for crediting the resultant products as circular
Ronald G. Abbott, Kingwood, TX (US); Scott G. Morrison, Kingwood, TX (US); Steven R. Horlacher, League City, TX (US); Jamie N. Sutherland, Kingwood, TX (US); Bruce D. Murray, Kingwood, TX (US); Jacob M. Hilbrich, Cleveland, TX (US); and Charles T. Polito, Humble, TX (US)
Assigned to Chevron Phillips Chemical Company LP, The Woodlands, TX (US)
Filed by Chevron Phillips Chemical Company LP, The Woodlands, TX (US)
Filed on Aug. 15, 2023, as Appl. No. 18/449,865.
Application 18/449,865 is a continuation of application No. 18/173,196, filed on Feb. 23, 2023, granted, now 11,746,297.
Application 18/173,196 is a continuation of application No. 17/934,619, filed on Sep. 23, 2022, granted, now 11,618,855, issued on Apr. 4, 2023.
Application 17/934,619 is a continuation of application No. 17/487,714, filed on Sep. 28, 2021, granted, now 11,479,726, issued on Oct. 25, 2022.
Claims priority of provisional application 63/084,311, filed on Sep. 28, 2020.
Prior Publication US 2023/0407183 A1, Dec. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C10B 53/07 (2006.01); C10G 45/26 (2006.01); C10G 45/50 (2006.01); C10G 51/02 (2006.01); C10G 57/02 (2006.01)
CPC C10B 53/07 (2013.01) [C10G 45/26 (2013.01); C10G 45/50 (2013.01); C10G 51/023 (2013.01); C10G 57/02 (2013.01); C10G 2300/1003 (2013.01); C10G 2400/04 (2013.01); C10G 2400/06 (2013.01); C10G 2400/20 (2013.01); C10G 2400/22 (2013.01); C10G 2400/28 (2013.01); C10G 2400/30 (2013.01)] 37 Claims
OG exemplary drawing
 
1. A process for producing chemicals or polymers from plastic waste, the process comprising:
(a) providing a pyrolysis oil from plastic waste;
(b) providing a petroleum-based feed, a fossil fuel-based feed, or a bio-based feed;
(c) introducing the pyrolysis oil and the petroleum-based feed, the fossil fuel-based feed, or the bio-based feed, each at a known feed rate, into a primary processing unit selected from a steam cracker, thereby providing a primary processing unit feed comprising the pyrolysis oil in a known concentration; and
(d) converting the primary processing unit feed into a primary processing unit output stream comprising circular ethylene, wherein the weight or the fraction of the circular ethylene attributable to the pyrolysis oil or plastic waste is determined by mass balance;
(e) transferring the circular ethylene to one or more secondary processing units comprising an olefin oligomerization unit, thereby providing one or more secondary processing unit feeds comprising the circular ethylene in a known concentration; and
(f) converting the one or more secondary processing unit feeds into one or more secondary processing unit output streams comprising at least one circular product selected from a C4-C30+ Normal Alpha Olefin (NAO), wherein the weight or the fraction of each circular product attributable to the pyrolysis oil or plastic waste is determined by mass balance.