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  • Title: Clover leaf-shaped Al2O3 extrudate as a support for high-capacity and cost-effective CO2 sorbent.
    Author: Yan X, Zhang Y, Qiao K, Li X, Zhang Z, Yan Z, Komarneni S.
    Journal: J Hazard Mater; 2011 Sep 15; 192(3):1505-8. PubMed ID: 21775061.
    Abstract:
    Amine-functionalized clover leaf-shaped Al(2)O(3) extrudates (CA) were prepared for use as CO(2) sorbent. The as-synthesized materials were characterized by N(2) adsorption, XRD, SEM and elemental analysis followed by testing for CO(2) capture using simulated flue gas containing 15.1% CO(2). The results showed that a significant enhancement in CO(2) uptake was achieved with the introduction of amines into CA materials. A remarkably high volume-based capacity of 70.1mg/mL of sorbent of this hybrid material suggests that it can be potentially used for CO(2) capture from flue gases and other stationary sources, especially those with low CO(2) concentration. The novel adsorbent reported here performed well during prolonged cyclic operations of adsorption-desorption of CO(2).
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