Method for producing a moisture swing sorbent for carbon dioxide capture from air
AssigneeThe Trustees of Columbia University in the City of New York
InventorKlaus S. Lackner
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Abstract
Methods and systems for producing a moisture swing sorbent for carbon dioxide capture from air are disclosed. In some embodiments, the methods include the following: providing a heterogeneous ion-exchange material; soaking the material in deionized water; washing the material in hydroxide or carbonate solutions; rinsing the material in deionized water; collecting and titrating residuals of the soaking and the washing steps into a residual solution; measuring an amount of chloride in the residual solution; repeating all of the steps if the amount of chloride measured in the residual solution is greater than zero; and drying the material with either dry nitrogen gas or air free of carbon dioxide and water.
Claims14
A method for producing a moisture swing sorbent for carbon dioxide capture from air, said method comprising:
- providing a heterogeneous ion-exchange material;
- soaking said material in deionized water;
- washing said material in hydroxide or carbonate solutions;
- rinsing said material in deionized water;
- collecting and titrating residuals of said soaking and said washing steps into a residual solution;
- measuring an amount of chloride in said residual solution;
- repeating all of said steps if said amount of chloride measured in said residual solution is greater than zero;
- and
- drying said material with either dry nitrogen gas or air free of carbon dioxide and water.
Dependencies are inferred from the claim text.