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- W1985477922 abstract "The steam hydration reactivation characteristics of three limestone samples after multiple CO2 looping cycles are presented here. The CO2 cycles were performed in a tube furnace (TF) and the resulting samples were hydrated by steam in a pressure reactor (PR). The reactivation was performed with spent samples after carbonation and calcination stages. The reactivation tests were done with a saturated steam pressure at 200 °C and also at atmospheric pressure and 100 °C. The characteristics of the reactivation samples were examined using BET and BJH pore characterization (for the original and spent samples, and samples reactivated under different conditions) and also by means of a thermogravimetric analyzer (TGA). The levels of hydration achieved by the reactivated samples were determined as well as the conversions during sulphation and multiple carbonation cycles. It was found that the presence of a CaCO3 layer strongly hinders sorbent hydration and adversely affects the properties of the reactivated sorbent with regard to its behavior in sulphation and multiple carbonation cycles. Here, hydration of calcined samples under pressure is the most effective method to produce superior sulphur sorbents. However, reactivation of calcined samples under atmospheric conditions also produces sorbents with significantly better properties in comparison to those of the original sorbents. These results show that separate CO2 capture and SO2 retention in fluidized bed systems enhanced by steam reactivation is promising even for atmospheric conditions if the material for hydration is taken from the calciner." @default.
- W1985477922 created "2016-06-24" @default.
- W1985477922 creator A5084132907 @default.
- W1985477922 creator A5089317030 @default.
- W1985477922 date "2008-07-01" @default.
- W1985477922 modified "2023-10-15" @default.
- W1985477922 title "Sequential SO2/CO2 capture enhanced by steam reactivation of a CaO-based sorbent" @default.
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- W1985477922 doi "https://doi.org/10.1016/j.fuel.2007.08.022" @default.
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