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Poly(allylamine)-Mesoporous Silica Composite Materials for CO2 Capture from Simulated Flue Gas or Ambient Air
被引:186
作者:
Chaikittisilp, Watcharop
[1
]
Khunsupat, Ratayakorn
[2
]
Chen, Thomas T.
[1
]
Jones, Christopher W.
[1
,2
]
机构:
[1] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA
[2] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA
关键词:
CARBON-DIOXIDE CAPTURE;
EXPANDED MESOPOROUS SILICA;
MOLECULAR-SIEVE;
HIGH-CAPACITY;
FLY-ASH;
ADSORPTION;
ADSORBENTS;
POLYETHYLENEIMINE;
SBA-15;
SEPARATION;
D O I:
10.1021/ie201584t
中图分类号:
TQ [化学工业];
学科分类号:
0817 ;
摘要:
Low-molecular-weight poly(allylamine) is prepared via free-radical polymerization, and the resulting polymer is impregnated into mesocellular silica foams at different amine loadings. The resulting poly(allylamine)-silica composites are demonstrated as effective adsorbents for the extraction of carbon dioxide from dilute (simulated flue gas) and ultradilute (simulated ambient air) gas streams. The composite adsorbents are shown to have comparable adsorption capacities to more-conventional poly(ethyleneirnine)-silica adsorbents. Potential advantages of poly(allylamine)-derived adsorbents are discussed.
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页码:14203 / 14210
页数:8
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