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US 12,215,292 B2Granted
Catalytic upcycling of polyolefins into lubricants
AssigneeUchicago Argonne, LLC
InventorsGokhan Celik, Kimaya Prakash Vyavhare, Robert M. Kennedy, Ryan Hackler, Ali Erdemir, Massimiliano Delferro
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Abstract
A method of upcycling polymers to useful hydrocarbon materials. A catalyst with nanoparticles on a substrate selectively docks and cleaves longer hydrocarbon chains over shorter hydrocarbon chains. The nanoparticles exhibit an edge to facet ratio to provide for more interactions with the facets.
Claims13
A method of producing a lubricant comprising:
- exposing, at a temperature of 150-350° C. and a pressure of 100-200 psi for 12-72 hours, a plurality of polymer molecules to a catalyst comprising a substrate having a plurality of catalytic nanoparticles deposited thereon;
- cleaving at least one carbon-carbon bond of a first polymer molecule of the plurality of polymer molecules;
- forming a plurality of hydrocarbon fragments from the cleaving;
- cleaving at least one carbon-carbon bond of a second polymer molecule of the plurality of polymer molecules;
- and
- forming a second plurality of hydrocarbon fragments.
3 more elements
A method of producing a lubricant comprising:
- exposing, at a temperature of 150-350° C. and a pressure of 100-200 psi for 12-72 hours, a plurality of polymer molecules to a catalyst comprising a substrate having a plurality of catalytic nanoparticles deposited thereon;
- and
- forming a plurality of hydrocarbon fragments from the plurality of polymer molecules by:
- cleaving at least one carbon-carbon bond of a first polymer molecule;
- cleaving at least one carbon-carbon bond of a second polymer molecule;
- and
- mixing the plurality of hydrocarbon fragments with poly-α-olefin, wherein the mixture comprises 10-40 wt % of the plurality of hydrocarbon fragments and having a molar mass distribution of from 400 to 1000 Da and 90-60 wt % poly-α-olefin.
4 more elements
Dependencies are inferred from the claim text.