Catalyst for life support system
AssigneeHamilton Sundstrand Space Systems International, Inc.
InventorsTimothy A. Nalette, Christopher Eldridge
Life of this patent
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Abstract
A catalyst for a life support system includes a plurality of titania support particles that define an average particle surface area. Platinum metal is disposed on the plurality of titania support particles such that a ratio of the average particle surface area to the percentage amount of the platinum metal is between 5 and 50 m2/% Pt g.
Claims20
A catalyst for a life support system, comprising:
- a plurality of titania support particles defining an average particle surface area, SA, wherein SA is a variable;
- and
- platinum metal disposed on the plurality of titania support particles in an amount, % Pt, wherein the % Pt is a percentage of a combined weight of the platinum metal and the plurality of titania support particles, such that a ratio of SA/% Pt is between 5 and 50 m2/% Pt g.
A life support system for a compartment that encloses an internal environment from an environment outside of the compartment with regard to any gas circulation between the internal environment and the surrounding environment, the life support system comprising:
- an air conditioning passage for fluid communication with the internal environment to receive air therefrom and discharge conditioned air thereto;
- and
- a catalyst disposed within the air conditioning passage to condition the air received from the internal environment, the catalyst including a plurality of titania support particles defining an average particle surface area, SA, wherein SA is a variable, and platinum metal disposed on the plurality of titania support particles in an amount, % Pt, wherein the % Pt is a percentage of a combined weight of the platinum metal and the plurality of titania support particles, such that a ratio of SA/% Pt is between 5 and 50 m2/% Pt g.
A method for processing a catalyst for a life support system, the method comprising:
- depositing platinum metal on a plurality of titania support particles that define an average particle surface area, SA, in an amount, % Pt, wherein the % Pt is a percentage of a combined weight of the platinum metal and the plurality of titania support particles, such that a ratio of SA/% Pt is between 5 and 50 m2/% Pt g.
Dependencies are inferred from the claim text.