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Title: Regenerable immobilized aminosilane sorbents for carbon dioxide capture applications

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, C.sub.12H.sub.28O.sub.4Ti). 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.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1159834
Assignee:
Georgia Tech Research Corporation (Atlanta, GA); U.S. Department of Energy (Washington, DC) NETL
Patent Number(s):
8,834,822
Application Number:
13/212,284
Research Org:
Georgia Tech Research Corporation, Atlanta, GA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Works referenced in this record:

Performance of immobilized tertiary amine solid sorbents for the capture of carbon dioxide
journal, January 2008
  • Gray, M. L.; Champagne, K. J.; Fauth, D.
  • International Journal of Greenhouse Gas Control, Vol. 2, Issue 1, p. 3-8
  • DOI: 10.1016/S1750-5836(07)00088-6