公开(公告)号：US11945732B2

公开(公告)日：2024-04-02

申请号：US17529738

申请日：2021-11-18

Applicant: Viktor Cybulskis

Inventor： Viktor Cybulskis

IPC: C02F1/28 ,  C02F1/72 ,  C02F101/30 ,  C02F103/06

CPC classification number: C02F1/28 ,  C02F1/725 ,  C02F2101/30 ,  C02F2103/06 ,  C02F2201/78 ,  C02F2301/066 ,  C02F2303/14

Abstract: A two-stage treatment process for destroying per- and polyfluoroalkyl substances (PFAS) in an aqueous stream. The two-stage treatment process uses a combination of multifunctional crystalline molecular sieves, such as zeolites and zeotypes, to separate PFAS from the aqueous stream, catalytically decompose and defluorinate any PFAS molecules, and generate non-toxic waste products that are safe for disposal. The first stage includes adsorption of the PFAS within one of a pair of vessels containing porous, hydrophobic, hydrothermally stable molecular sieves, dehydration of the captured PFAS on the sieves, and catalytic ozonation of the captured PFAS molecules on the dried sieves. The second stage involves catalytic decomposition and neutralization of the ozonation results with one of a pair of vessels including a zeolite-supported CaO catalyst, catalytic oxidation of any toxic CO generated by the decomposition, and an acid wash for regeneration of the spent catalyst.

公开(公告)号：US12281030B2

公开(公告)日：2025-04-22

申请号：US18593151

申请日：2024-03-01

Applicant: Viktor Cybulskis

Inventor： Viktor Cybulskis

IPC: C02F1/28 ,  C02F1/72 ,  C02F101/30 ,  C02F103/06

Abstract: A two-stage treatment process for destroying per- and polyfluoroalkyl substances (PFAS) in an aqueous stream. The two-stage treatment process uses a combination of multifunctional crystalline molecular sieves, such as zeolites and zeotypes, to separate PFAS from the aqueous stream, catalytically decompose and defluorinate any PFAS molecules, and generate non-toxic waste products that are safe for disposal. The first stage includes adsorption of the PFAS within one of a pair of vessels containing porous, hydrophobic, hydrothermally stable molecular sieves, dehydration of the captured PFAS on the sieves, and catalytic ozonation of the captured PFAS molecules on the dried sieves. The second stage involves catalytic decomposition and neutralization of the ozonation results with one of a pair of vessels including a zeolite-supported CaO catalyst, catalytic oxidation of any toxic CO generated by the decomposition, and an acid wash for regeneration of the spent catalyst.

公开(公告)号：US20220356080A1

公开(公告)日：2022-11-10

申请号：US17529738

申请日：2021-11-18

Applicant: Viktor Cybulskis

Inventor： Viktor Cybulskis

IPC: C02F1/28 ,  C02F1/72

Abstract: A two-stage treatment process for destroying per- and polyfluoroalkyl substances (PFAS) in an aqueous stream. The two-stage treatment process uses a combination of multifunctional crystalline molecular sieves, such as zeolites and zeotypes, to separate PFAS from the aqueous stream, catalytically decompose and defluorinate any PFAS molecules, and generate non-toxic waste products that are safe for disposal. The first stage includes adsorption of the PFAS within one of a pair of vessels containing porous, hydrophobic, hydrothermally stable molecular sieves, dehydration of the captured PFAS on the sieves, and catalytic ozonation of the captured PFAS molecules on the dried sieves. The second stage involves catalytic decomposition and neutralization of the ozonation results with one of a pair of vessels including a zeolite-supported CaO catalyst, catalytic oxidation of any toxic CO generated by the decomposition, and an acid wash for regeneration of the spent catalyst.

公开(公告)号：US20240199446A1

公开(公告)日：2024-06-20

申请号：US18593151

申请日：2024-03-01

Applicant: Viktor Cybulskis

Inventor： Viktor Cybulskis

IPC: C02F1/28 ,  C02F1/72 ,  C02F101/30 ,  C02F103/06

CPC classification number: C02F1/28 ,  C02F1/725 ,  C02F2101/30 ,  C02F2103/06 ,  C02F2201/78 ,  C02F2301/066 ,  C02F2303/14

Abstract: A two-stage treatment process for destroying per- and polyfluoroalkyl substances (PFAS) in an aqueous stream. The two-stage treatment process uses a combination of multifunctional crystalline molecular sieves, such as zeolites and zeotypes, to separate PFAS from the aqueous stream, catalytically decompose and defluorinate any PFAS molecules, and generate non-toxic waste products that are safe for disposal. The first stage includes adsorption of the PFAS within one of a pair of vessels containing porous, hydrophobic, hydrothermally stable molecular sieves, dehydration of the captured PFAS on the sieves, and catalytic ozonation of the captured PFAS molecules on the dried sieves. The second stage involves catalytic decomposition and neutralization of the ozonation results with one of a pair of vessels including a zeolite-supported CaO catalyst, catalytic oxidation of any toxic CO generated by the decomposition, and an acid wash for regeneration of the spent catalyst.