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US 2025/0186967 A1Published application
Material to separate and pump oxygen
AssigneeArizona Board of Regents on behalf of Arizona State University
InventorsSteven Wilson, Christopher Muhich, Ellen B. Stechel, Ivan Ermanoski
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Abstract
A material for separating and pumping oxygen is disclosed. The material is a zeolite doped with a chemical element having an electron density of between 30 kJ/mol and 150 kJ/mol. The material is configured for controllable oxygen desorption between 150° C. and 300° C. and pumping the released oxygen into an area having an ambient pressure of less than 100 pascals.
Claims20
A method for separating oxygen from a gas stream within a system, the method comprising:
- (a) exposing a doped zeolite material to a gas stream containing O2 at a temperature ranging from −20° C. to 80° C.;
- (b) adsorbing O2 onto the surface of the doped zeolite material via an exothermic adsorption reaction;
- (c) isolating the doped zeolite material from the original gas stream;
- (d) heating the isolated doped zeolite material to a temperature ranging from 100° C. to 300° C., thereby releasing the adsorbed O2;
- and
- (e) removing the released O2 from the system.
3 more elements
Dependencies are inferred from the claim text.