Abrégé

A system for breaking down a PFA (perfluoroalkyl or polyfluoroalkyl) compound includes a reactor vessel, a heater, and a catalyst. The reactor vessel is operable to hold influent that includes a PFA compound, an alkali, and water, while alkaline hydrolysis separates a fluorine atom from the PFA compound in the influent. The heater is operable to heat the influent to a temperature within the range of 100° Celsius to 700° Celsius. And the catalyst is operable to increase the rate at which alkaline hydrolysis separates a fluorine atom from a PFA compound. The catalyst includes a body that includes a transition metal, which is a d-block metal or a metal from any of the periodic table's groups 4-11. The body also has a shape configured to multiply a surface-area-to-volume ratio by at least 1.5 when the body is disposed in an influent experiencing alkaline hydrolysis.

Classes IPC  ?

• A62D 3/34 - Déshalogénation au moyen de réactifs susceptibles d'effectuer la dégradation
• A62D 3/35 - Procédés pour rendre les substances chimiques nuisibles inoffensives ou moins nuisibles en effectuant un changement chimique dans les substances par réaction avec des agents chimiques par hydrolyse
• A62D 3/36 - Détoxification au moyen de réactifs acides ou alcalins
• A62D 3/40 - Procédés pour rendre les substances chimiques nuisibles inoffensives ou moins nuisibles en effectuant un changement chimique dans les substances par chauffage pour effectuer une modification chimique, p. ex. par pyrolyse
• A62D 101/22 - Substances organiques contenant un halogène

Abrégé

A system for breaking down a PFA (perfluoroalkyl or polyfluoroalkyl) compound includes a reactor vessel, a heater, and a catalyst. The reactor vessel is operable to hold influent that includes a PFA compound, an alkali, and water, while alkaline hydrolysis separates a fluorine atom from the PFA compound in the influent. The heater is operable to heat the influent to a temperature within the range of 100° Celsius to 700°Celsius. And the catalyst is operable to increase the rate at which alkaline hydrolysis separates a fluorine atom from a PFA compound. The catalyst includes a body that includes a transition metal, which is a d-block metal or a metal from any of the periodic table's groups 4 - 11. The body also has a shape configured to multiply a surface-area-to-volume ratio by at least 1.5 when the body is disposed in an influent experiencing alkaline hydrolysis.

Classes IPC  ?

• B01J 41/05 - Procédés utilisant des échangeurs organiques sous forme fortement basique
• B01J 41/04 - Procédés utilisant des échangeurs organiques
• B09C 1/00 - Régénération de sols pollués

Abrégé

A system for breaking down a PFA (perfluoroalkyl or polyfluoroalkyl) compound includes a reactor vessel, a heater, and a catalyst. The reactor vessel is operable to hold influent that includes a PFA compound, an alkali, and water, while alkaline hydrolysis separates a fluorine atom from the PFA compound in the influent. The heater is operable to heat the influent to a temperature within the range of 100° Celsius to 700°Celsius. And the catalyst is operable to increase the rate at which alkaline hydrolysis separates a fluorine atom from a PFA compound. The catalyst includes a body that includes a transition metal, which is a d-block metal or a metal from any of the periodic table's groups 4 - 11. The body also has a shape configured to multiply a surface-area-to-volume ratio by at least 1.5 when the body is disposed in an influent experiencing alkaline hydrolysis.

Classes IPC  ?

• B01J 23/745 - Fer
• A62D 3/34 - Déshalogénation au moyen de réactifs susceptibles d'effectuer la dégradation
• B01J 41/04 - Procédés utilisant des échangeurs organiques
• B09C 1/00 - Régénération de sols pollués