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US 12,441,668 B2Granted
Method of processing waste plastic and pyrolysis oil from waste plastic
AssigneeSabic Global Technologies B.V.
InventorsNicolas Goyheneix, Raul Velasco Pelaez, Robert Schucker, Ravichander Narayanaswamy, Navin Asthana, Alexander Stanislaus
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Abstract
Systems and methods for processing plastic derived pyrolysis oil are disclosed. A plastic derived pyrolysis oil and/or plastic are processed in a catalytic cracking unit and/or a thermal cracking unit under reaction conditions sufficient to produce a gaseous stream comprising propylene and a liquid stream. The liquid stream is further processed to produce additional propylene.
Claims19
A method of processing a pyrolysis oil, the method comprising;
- processing a pyrolysis oil obtained from pyrolysis of a plastic in a catalytic cracking unit, a hydrocracking unit, and/or a thermal cracking unit under reaction conditions sufficient to produce a gaseous stream comprising propylene and a liquid stream with a boiling range of 35 to 400° C.;
- and
- processing the liquid stream to produce additional propylene,
- wherein a portion of the pyrolysis oil or the entire pyrolysis oil is blended with vacuum residue to form a first pyrolysis oil blend, and the first pyrolysis oil blend is processed in the thermal cracking unit.
1 more element
A method of processing a plastic, the method comprising:
- forming a pyrolysis oil from a plastic and blending the pyrolysis oil with vacuum residue to form a pyrolysis oil blend;
- thermal-cracking, in a thermal cracking unit, the pyrolysis oil blend to produce a gaseous stream comprising propylene and a liquid stream having a boiling range of 35 to 400° C.;
- and
- processing the liquid stream to produce additional propylene.
1 more element
Dependencies are inferred from the claim text.