US 11,945,732 B2
On-site destruction of recalcitrant perfluoroalkyl substances by molecular sieves
Viktor Cybulskis, North Syracuse, NY (US)
Assigned to SYRACUSE UNIVERSITY, Syracuse, NY (US)
Filed by Viktor Cybulskis, North Syracuse, NY (US)
Filed on Nov. 18, 2021, as Appl. No. 17/529,738.
Claims priority of provisional application 63/115,105, filed on Nov. 18, 2020.
Prior Publication US 2022/0356080 A1, Nov. 10, 2022
Int. Cl. C02F 1/28 (2023.01); C02F 1/72 (2023.01); C02F 101/30 (2006.01); C02F 103/06 (2006.01)
CPC C02F 1/28 (2013.01) [C02F 1/725 (2013.01); C02F 2101/30 (2013.01); C02F 2103/06 (2013.01); C02F 2201/78 (2013.01); C02F 2301/066 (2013.01); C02F 2303/14 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An apparatus for destroying recalcitrant perfluoroalkyl substances, comprising:
a first vessel having an adsorption bed formed from a porous, hydrophobic, hydrothermally stable molecular sieve;
a source of compressed air coupled to the first vessel for introducing compressed air into the first vessel;
a source of heat coupled to the first vessel that can selectively increase a temperature of the first vessel to a first temperature between 80 and 120 degrees Celsius and to a second temperature of at least 150 degrees Celsius;
a source of ozone coupled to the first vessel for introducing ozone into the first vessel;
a second vessel coupled to the first vessel to receive any off-gases from the first vessel and including a catalytic bed formed from a zeolite-supported CaO catalyst;
a catalytic oxidizer coupled to the second vessel and having a metal-oxide supported noble catalyst operating at a temperature of between 200 and 350 degrees Celsius; and
a source of a mineral acid coupled to the second vessel.