Methods of storing and separating gases using microporous metal formates
AssigneePostech Academy-Industry Foundation
InventorsKimoon Kim, Hyunuk Kim, Kyeng Min Park, Denis G. Samsonenko, Yinyong Sun
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Abstract
Provided are methods of storing and separating acetylene or oxygen using microporous metal formates having a three-dimensional structure of metal and formate ion (HCOO−). Microporous metal formates used in the method selectively and stably adsorb a large amount of a specific gas within its structure. Therefore, those methods can be used in industrial appliances related to, for example, synthesis and transportation of high-purity gas.
Claims7
A method of storing acetylene, comprising contacting acetylene or an acetylene-containing gaseous mixture with microporous metal formates represented by Formula 1 so as to adsorb acetylene onto the microporous metal formats:
- where each formate ion is bound to three metallic ions Ms, each metallic ion M is bound to six formate ions, a composition ratio of the metallic ion M to the formate ion is 1:2, and the metal is Mg, Mn, Co, Zn, Ni or Fe.
A method of separating acetylene, comprising contacting an acetylene-containing gaseous mixture with microporous metal formates represented by Formula 1 so as to selectively adsorb acetylene onto the microporous metal formats:
- where each formate ion is bound to three metallic ions Ms, each metallic ion M is bound to six formate ions, a composition ratio of the metallic ion M to the formate ion is 1:2, and the metal is Mg, Mn, Co, Zn, Ni or Fe.
A method of storing oxygen, comprising contacting oxygen, or a gaseous mixture of nitrogen and oxygen with microporous metal formates represented by Formula 1 so as to adsorb oxygen onto the microporous metal formates:
- where each formate ion is bound to three metallic ions Ms, each metallic ion M is bound to six formate ions, a composition ratio of the metallic ion M to the formate ion is 1:2, and the metal is Mg, Mn, Co, Zn, Ni or Fe.
A method of separating oxygen, comprising contacting a gaseous mixture of oxygen and nitrogen with microporous metal formates represented by Formula 1 so as to selectively adsorb oxygen onto the microporous metal formates:
- where each formate ion is bound to three metallic ions Ms, each metallic ion M is bound to six formate ions, a composition ratio of the metallic ion M to the formate ion is 1:2, and the metal is Mg, Mn, Co, Zn, Ni or Fe.
Dependencies are inferred from the claim text.