Saturation of Ammonia Storage Materials in Containers
AssigneeAmminex A/X
InventorsJakob Svagin, Ulrich Quaade, Ryan Bradley, Johnny Johansen, Henning Schmidt, Tue Jchannessen
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Abstract
A method of saturating reversible ammonia storage materials inside a container for the purpose of achieving high volumetric ammonia storage capacity and containers filled with the materials are disclosed.
Claims24
A method for obtaining an ammonia storage material, which can reversibly absorb and desorb ammonia, wherein the material can be in unsaturated form void of ammonia, partially saturated form wherein the average saturation with ammonia is less than the saturation obtained when the material has absorbed ammonia in the maximum theoretical amount, and fully saturated form wherein the material has absorbed ammonia in the maximum theoretical amount, in a container comprising a container volume with a degree of saturation with ammonia corresponding to at least about 75% of the theoretical maximum ammonia storage capacity of said ammonia storage material in said container volume the method comprising:
- a) providing said container comprising said container volume, wherein said container volume is filled with a granular or powdered form or a coherent or semi-coherent porous form of said partially saturated ammonia storage material in a molar amount that corresponds to at least about 75% of the molar amount of the fully saturated material, which would fill the container volume completely in form of a single crystal;
- said partial saturation corresponding to a saturation of the storage material with ammonia to such a degree that the bulk volume of the partially saturated storage material under ambient pressure essentially equals the container volume;
- b) further saturating said partially saturated ammonia storage material with ammonia to a desired degree of saturation corresponding to at least about 75% of the theoretical maximum ammonia storage capacity of said ammonia storage material in said container volume without agitation.
The method claim of 1 wherein said obtaining of said partially saturated material is accomplished by mixing unsaturated or partially saturated material and a differently partially saturated material or fully saturated material.
The method claim of 1 further comprising actively removing absorption heat while partially or further saturating said storage material.
A method for obtaining an ammonia storage material, which can reversibly absorb and desorb ammonia, wherein the material can be in unsaturated form void of ammonia, partially saturated form wherein the average saturation with ammonia is less than the saturation obtained when the material has absorbed ammonia in the maximum theoretical amount, and fully saturated form wherein the material has absorbed ammonia in the maximum theoretical amount, in a container comprising a container volume, comprising
- a) providing said container;
- b) providing an unsaturated granular or powdered ammonia storage material void of ammonia in a molar amount, which is equal to at least about 75% the molar amount of fully saturated material, when this would fill the container volume completely in form of a single crystal, outside the container;
- c) optionally filling the material provided in b) into the container;
- d) obtaining a granular or powdered ammonia storage material which is partially saturated with ammonia to such a degree that its bulk volume essentially equals the container volume, from the granular or powdered ammonia storage material provided in b) or c) under ambient pressure, the material being agitated when said obtaining is accomplished inside the container;
- e) filling the container volume completely with the partially saturated material, if obtained outside the container,
- f) and optionally further supplying ammonia with agitation, until the partially saturated material is a coherent or semi-coherent porous material.
A container comprising a container volume filled with an ammonia storage material, which reversibly absorbs and desorbs ammonia, with a degree of saturation under ambient pressure corresponding to at least about 75% of theoretical maximum ammonia storage capacity of said ammonia storage material in said container, wherein said ammonia storage material is in a coherent or semi-coherent form.
A container of an arbitrary shape comprising a container volume filled with a partially saturated ammonia storage material, which reversibly absorbs and desorbs ammonia, said filled container being obtainable by
- a) providing an unsaturated granular ammonia storage material void of ammonia in a molar amount, which is equal to at least 75% of the molar amount of fully saturated material, which would fill the container volume completely in form of a single crystal, outside the container;
- b) optionally filling the material provided in a) into the container;
- c) obtaining a granular ammonia storage material which is partially saturated with ammonia to such a degree that its bulk volume essentially equals the container volume, from the granular ammonia storage material provided in a) or b) under ambient pressure, the material being agitated when said obtaining is accomplished inside the container;
- d) completely filling the container volume with the partially saturated material, if obtained outside the container.
Dependencies are inferred from the claim text.