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US 11,577,224 B2Granted
Gas treatment method and materials
AssigneeHamilton Sundstrand Corporation
InventorRandolph Carlton McGee
Life of this patent
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Abstract
A method is disclosed in which a gas of hydrogen and nitrogen, or hydrogen and ammonia, or hydrogen, nitrogen, and ammonia, is introduced to a fluidized bed. The gas flows through the fluidized bed, and titanium dioxide particles are introduced to the fluidized bed to form a fluid mixture of the particles and gas in the fluidized bed. The particles are reacted with the gas in the fluid mixture to form particles including titanium dioxide and nitrogen. The particles can be disposed along an air flow path in operative communication with a light source for air treatment.
Claims10
An air treatment method, comprising:
- introducing a gas to a fluidized bed, said gas comprising hydrogen and ammonia, or comprising hydrogen, nitrogen, and ammonia;
- flowing the gas through the fluidized bed, and introducing particles comprising titanium dioxide to the fluidized bed to form a fluid mixture of the particles and gas in the fluidized bed;
- reacting the particles with the gas to form particles comprising titanium dioxide and nitrogen, wherein 5 atomic percent to 50 atomic percent nitrogen is integrated into an atomic lattice structure of the titanium dioxide;
- disposing the particles along an air flow path in operative communication with a light source;
- and
- activating the light source and contacting the particles with air to be treated.
3 more elements
Dependencies are inferred from the claim text.