Patent ID: 11970409
Assignee: REVIVE ENVIRONMENTAL TECHNOLOGY, LLC
Field: Environmental technology (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A method of destroying PFAS in a PFAS-containing mixture, comprising: subjecting the PFAS-containing mixture to a separation procedure comprising separating the PFAS-containing mixture into a PFAS-enriched fraction and a PFAS-depleted fraction;
heating at least a portion of the PFAS-depleted fraction to a temperature of at least 300° C. to form a heated PFAS-depleted fraction and wherein the PFAS-enriched fraction not being subjected to this heating step; and
prior to a supercritical destruction phase, combining the heated PFAS-depleted fraction with the PFAS-enriched fraction having a lower temperature than the heated PFAS-depleted fraction to form a hot PFAS-containing mixture; and
reacting the hot PFAS-containing mixture with an oxidant under supercritical conditions in the supercritical destruction phase.