Membrane separation of carbon dioxide
AssigneeNew Jersey Institute of Technology
InventorsKamalesh K. Sirkar, A. Sarma Kovvali, Hua Chen
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Abstract
A method for the separation of carbon dioxide from a gas mixture is described in which a dendrimer selective for carbon dioxide is present in an immobilized liquid membrane, the dendrimer being either in pure form or optionally with at least one solvent, such as but not limited to glycerol, polyethylene glycol, water, refrigerated methanol, NMP, or glycerol carbonate, the latter also having selective carbon dioxide properties as will be described below. In another embodiment, a dendrimer selective for carbon dioxide and capable of forming a film may be used in the method as the membrane itself, optionally with at least one solvent.
Claims5
A method for separating carbon dioxide from a gas mixture including carbon dioxide, comprising contacting an immobilized liquid membrane containing a dendrimer and an optional solvent, said solvent selected from the group consisting of glycerol, polyethylene glycol, water, refrigerated methanol, NMP, glycerol carbonate, and combinations thereof with said gas mixture, whereby at least some quantity of carbon dioxide is separated.
A method for separating carbon dioxide from a gas mixture including carbon dioxide, comprising
- in an absorbtion module,
- contacting a mobile liquid membrane containing a dendrimer and an optional solvent, said solvent selected from the group consisting of glycerol, polyethylene glycol, water, refrigerated methanol, NMP, glycerol carbonate, and combinations thereof with said gas mixture
- whereby at least some quantity of carbon dioxide is separated;
- and in a stripping unit,
- regenerating said dendrimer and optional solvent for subsequent reuse in the absorbing module.
Dependencies are inferred from the claim text.