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High performance hydrophobic solvent, carbon dioxide capture

US2015114226A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2015114226-A1
Application numberUS-201414525011-A
CountryUS
Kind codeA1
Filing dateOct 27, 2014
Priority dateOct 28, 2013
Publication dateApr 30, 2015
Grant date—

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  2. Abstract

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  5. First independent claim

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Abstract

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Methods and compositions useful, for example, for physical solvent carbon capture. A method comprising: contacting at least one first composition comprising carbon dioxide with at least one second composition to at least partially dissolve the carbon dioxide of the first composition in the second composition, wherein the second composition comprises at least one siloxane compound which is covalently modified with at least one non-siloxane group comprising at least one heteroatom. Polydimethylsiloxane (PDMS) materials and ethylene-glycol based materials have high carbon dioxide solubility but suffer from various problems. PDMS is hydrophobic but suffers from low selectivity. Ethylene-glycol based systems have good solubility and selectivity, but suffer from high affinity to water. Solvents were developed which keep the desired combinations of properties, and result in a simplified, overall process for carbon dioxide removal from a mixed gas stream.

First claim

Opening claim text (preview).

1 . A method comprising: contacting at least one first composition comprising carbon dioxide with at least one second composition to at least partially dissolve the carbon dioxide of the first composition in the second composition, wherein the second composition comprises at least one siloxane compound which is covalently modified with at least one non-siloxane group comprising at least one heteroatom. 2 . The method of claim 1 , wherein the heteroatom is nitrogen or ox…

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What does patent US2015114226A1 cover?
Methods and compositions useful, for example, for physical solvent carbon capture. A method comprising: contacting at least one first composition comprising carbon dioxide with at least one second composition to at least partially dissolve the carbon dioxide of the first composition in the second composition, wherein the second composition comprises at least one siloxane compound which is coval…
Who is the assignee on this patent?
Univ Carnegie Mellon, Nat Energy Technology Lab
What technology area does this patent fall under?
Primary CPC classification B01D53/1493. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Thu Apr 30 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).