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    CO2 capture with a novel solid fluidizable sorbent: Thermodynamics and Temperature Programmed Carbonation-Decarbonation

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    Date
    2013
    Author
    Chowdhury, Muhammad B.I.
    Quddus, Mohammed
    deLasa, Hugo I.
    Advisor(s)
    Unknown advisor
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    Abstract
    Temperature Programmed Carbonation developed using a temperature programmed fixed bed unit. Sorbents are kept in contact with a gas stream containing a 10% CO2 mole fraction, and are subjected to a 5 C/min temperature ramp. Calcium carbonate, lithium orthosilicate and a novel lithium orthosilicate modified sorbent are considered for these runs. TPC-TPDC runs confirm thermodynamic predictions for thermal inversion points. Furthermore, TPD-TPDC runs show that the novel lithium orthosilicate based sorbent provides a very stable and increased CO2 sorption capacity over 10 absorption-regeneration cycles, while calcium carbonatetemperature programmed fixed bed unit. We develop TPC-TPDC runs using calcium carbonate and lithium orthosilicate. We are able to predict sorbent regeneration and temperature inversion points.
    DSpace URI
    http://hdl.handle.net/11073/8280
    External URI
    https://doi.org/10.1016/j.cej.2013.07.044
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