Article for CO;capture having heat exchange capability
First Claim
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1. An article for removing CO2 from a gas stream, the article comprising:
- a plurality of intersecting walls having a porosity greater than 50 percent and outer surfaces that define a plurality of cells extending from one end to a second end of the article, the plurality of cells comprising at least a first subset of cells and a second subset of cells; and
a barrier layer disposed on the walls of each cell in the first subset of cells to form a plurality of heat exchange flow channels, the porosity of the walls on which the barrier layer is disposed being greater than 50 percent;
wherein the walls of each cell in the first and the second subset of cells comprise a CO2 sorbent material; and
wherein the walls of each cell in the second subset of cells form a plurality of reaction flow channels, and do not comprise a barrier layer.
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Abstract
An article comprising a plurality of intersecting walls having outer surfaces that define a plurality of cells extending from one end to a second end, wherein the walls forming each cell in a first subset of cells are covered by a barrier layer to form a plurality of heat exchange flow channels, and wherein the walls forming each cell in a second subset of cells different from the first subset of cells, comprise a CO2 sorbent and form reaction flow channels. Heat exchange flow channels allow quick and uniform heating and cooling of the sorbent body. The article may be useful, for example, for removing CO2 from a gas stream.
28 Citations
23 Claims
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1. An article for removing CO2 from a gas stream, the article comprising:
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a plurality of intersecting walls having a porosity greater than 50 percent and outer surfaces that define a plurality of cells extending from one end to a second end of the article, the plurality of cells comprising at least a first subset of cells and a second subset of cells; and a barrier layer disposed on the walls of each cell in the first subset of cells to form a plurality of heat exchange flow channels, the porosity of the walls on which the barrier layer is disposed being greater than 50 percent; wherein the walls of each cell in the first and the second subset of cells comprise a CO2 sorbent material; and wherein the walls of each cell in the second subset of cells form a plurality of reaction flow channels, and do not comprise a barrier layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification