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Ionic liquid-functionalized mesoporous sorbents and their use in the capture of polluting gases

Patent ·
OSTI ID:1234676
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A composite structure for capturing a gaseous electrophilic species, the composite structure comprising mesoporous refractory sorbent particles on which an ionic liquid is covalently attached, wherein said ionic liquid includes an accessible functional group that is capable of binding to said gaseous electrophilic species. In particular embodiments, the mesoporous sorbent particles are contained within refractory hollow fibers. Also described is a method for capturing a gaseous electrophilic species by use of the above-described composite structure, wherein the gaseous electrophilic species is contacted with the composite structure. In particular embodiments thereof, cooling water is passed through the refractory hollow fibers containing the IL-functionalized sorbent particles in order to facilitate capture of the gaseous electrophilic species, and then steam is passed through the refractory hollow fibers to facilitate release of the gaseous electrophilic species such that the composite structure can be re-used to capture additional gas.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Number(s):
9,233,339
Application Number:
13/868,600
OSTI ID:
1234676
Country of Publication:
United States
Language:
English

References (7)

Selective hydrogenation of cinnamaldehyde catalyzed by palladium nanoparticles immobilized on ionic liquids modified-silica gel journal March 2008
Ionic Liquids for the Convenient Synthesis of Functional Nanoparticles and Other Inorganic Nanostructures journal September 2004
Study on immobilized liquid membrane using ionic liquid and PVDF hollow fiber as a support for CO2/N2 separation journal April 2011
Hollow fiber-supported designer ionic liquid sponges for post-combustion CO2 scrubbing journal November 2012
Amine-oxide hybrid materials for acid gas separations journal January 2011
A new approach of ionic liquid containing polymer sorbents for post-combustion CO2 scrubbing journal February 2012
Hollow Fiber Adsorbents for CO 2 Removal from Flue Gas journal August 2009

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES