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    Regenerable Immobilized Aminosilane Sorbents For Carbon Dioxide Capture Applications

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    8834822.pdf (511.4Kb)
    Date
    9/16/2014
    Author
    Gay, Mcmahan
    Choi, Sunho
    Jones, Christopher W.
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    Abstract
    A method for the separation of carbon dioxide from ambient air and flue gases is provided wherein a phase separating moiety with a second moiety are simultaneously coupled and bonded onto an inert substrate to create a mixture which is subsequently contacted with flue gases or ambient air. The phase-separating moiety is an amine whereas the second moiety is an aminosilane, or a Group 4 propoxide such as titanium (IV) propoxide (tetrapropyl orthotitanate, C₁₂H₂₈O₄Ti). The second moiety makes the phase-separating moiety insoluble in the pores of the inert substrate. The new sorbents have a high carbon dioxide loading capacity and considerable stability over hundreds of cycles. The synthesis method is readily scalable for commercial and industrial production.
    URI
    http://hdl.handle.net/1853/56923
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