CO 2 absorbent and method for CO 2 capture
First Claim
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1. A method comprising:
- removing CO2 from a gas phase, wherein the gas phase is brought in contact with an aqueous suspension of super-paramagnetic particles made of a cross-bounded, porous polymer substrate, having CO2 absorbing functional nucleophilic groups grafted on a particle surface, where an absorbent is concentrated by magnetic separation of water and particles, and where the absorbent thereafter is regenerated by heating to release CO2 that is withdrawn and treated further for export from a plant.
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Abstract
A solid absorbent for absorption of CO2 from flue gas, comprising: a) particles made of a cross bounded, highly porous polymer substrate, and b) CO2 absorbing functional nucleophilic groups grafted on the particle surface, is described. A method for CO2 sequestration using the absorbent is also described.
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4 Claims
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1. A method comprising:
removing CO2 from a gas phase, wherein the gas phase is brought in contact with an aqueous suspension of super-paramagnetic particles made of a cross-bounded, porous polymer substrate, having CO2 absorbing functional nucleophilic groups grafted on a particle surface, where an absorbent is concentrated by magnetic separation of water and particles, and where the absorbent thereafter is regenerated by heating to release CO2 that is withdrawn and treated further for export from a plant. - View Dependent Claims (2, 3, 4)
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