Polymer-encapsulated carbon capture liquids that tolerate precipitation of solids for increased capacity
AssigneeLawrence Livermore National Security, LLC
InventorsRoger D. Aines, William L. Bourcier, Christopher M. Spadaccini, Joshuah K. Stolaroff
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Abstract
A system for carbon dioxide capture from flue gas and other industrial gas sources utilizes microcapsules with very thin polymer shells. The contents of the microcapsules can be liquids or mixtures of liquids and solids. The microcapsules are exposed to the flue gas and other industrial gas and take up carbon dioxide from the flue gas and other industrial gas and eventual precipitate solids in the capsule.
Claims19
A microcapsule for carbon dioxide capture from flue gas and other industrial gas as sources, comprising:
- a microcapsule body,
- a surface layer on said microcapsule body that is permeable o carbon dioxide wherein said surface layer includes carbon fibers, and
- stripping solvents encapsulated within said microcapsule body, wherein said stripping solvents are soluble to the carbon dioxide and wherein to the carbon dioxide migrates through said surface layer and is taken up by said stripping solvents separating the carbon dioxide capture from flue gas and other industrial gas.
A microcapsule for carbon dioxide capture from flue gas and other industrial gas sources, comprising:
- a microcapsule body,
- a surface layer on said microcapsule body that is permeable to carbon dioxide wherein said surface layer includes nanotubes, and
- stripping solvents encapsulated within said microcapsule body, wherein said stripping solvents are soluble to the carbon dioxide and wherein to the carbon dioxide migrates through said surface layer and is taken up by said stripping solvents separating the carbon dioxide capture from flue gas and other industrial gas.
An apparatus for carbon dioxide capture from flue gas and other industrial gas containing carbon dioxide, comprising:
- a system for exposing microcapsules having a coating and stripping material encapsulated in said microcapsules to the flue gas and other industrial gas containing carbon dioxide, wherein said coating is permeable to the carbon dioxide and wherein the carbon dioxide migrates through said coating and is taken up by said stripping material;
- and
- a system for driving off the carbon dioxide from said microcapsules thereby separating the carbon dioxide from the from flue gas and other industrial gas.
A method of carbon dioxide capture from flue gas and other industrial gas containing carbon dioxide, comprising the steps of:
- providing microcapsules having a coating and stripping material encapsulated in said microcapsules, wherein said coating is permeable to the carbon dioxide;
- exposing said microcapsules having a coating and stripping material encapsulated in said microcapsules to the flue gas and other industrial gas containing carbon dioxide, wherein the carbon dioxide migrates through said coating and is taken up by said stripping material;
- and
- separating the carbon dioxide from the flue gas and other industrial gas containing carbon dioxide by driving off the carbon dioxide from said microcapsules.
A method of separating carbon dioxide from a gas mixture including carbon dioxide, comprising the steps of:
- providing microcapsules having a coating and stripping solvents encapsulated in said microcapsules, wherein said coating is permeable to carbon dioxide;
- exposing said microcapsules having a coating and stripping solvents encapsulated in said microcapsules to the gas mixture including carbon dioxide, wherein the carbon dioxide migrates through said coating and is taken up by said stripping solvents;
- and
- separating the carbon dioxide from the gas mixture by driving off the carbon dioxide from said microcapsules.
Dependencies are inferred from the claim text.