Back to results
US 8,540,954 B2Granted
CO2—capture in molten salts
AssigneeUniversitetet for Miljo-og Biovitenskap Institutt for Matematiske Realfag og Teknologi
InventorEspen Olsen
Life of this patent
Estimating the term…
Abstract
The present invention concerns carbon dioxide capture from waste gas, where metal oxides dissolved in salt melts are used as absorbents.
Claims8
A method for the removal of carbon dioxide from a gas stream, comprising:
- a first step of contacting the gas stream with an absorption medium, wherein the absorption medium comprises molten salts containing at least one halide of an alkali or alkali earth metal that have a content of dissolved metal oxide which react with the carbon dioxide and create a metal carbonate, and
- a second step of heating the molten salts containing metal carbonate and releasing metal oxide and carbon dioxide,
- wherein the method is carried out at a temperature of 600 to 1600° C.
Dependencies are inferred from the claim text.