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Fluidized bed calcium looping: The effect of SO2 on sorbent attrition and CO2 capture capacity

Coppola, Antonio et al.

Chemical engineering journal. Volume 207/208 (2012); pp 445-449

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  • Title:
    Fluidized bed calcium looping: The effect of SO2 on sorbent attrition and CO2 capture capacity
  • Author: Coppola, Antonio;
    Montagnaro, Fabio;
    Salatino, Piero;
    Scala, Fabrizio
  • Found In: Chemical engineering journal. Volume 207/208 (2012); pp 445-449
  • Journal Title: Chemical engineering journal
  • Subjects: Fluidized bed--Calcium looping--CO2 capture--Attrition--Sulphation
  • Rights: Licensed
  • Abstract: Highlights Simulated calcium looping cycles were carried out in a fluidized bed. The influence of SO2on CO2capture capacity and particle attrition was studied. The presence of SO2had a detrimental effect on CO2capture capacity. The SO2concentration level affected the capacity less than anticipated. Attrition was only slightly affected by the presence of SO2. Abstract The CO2capture capacity and the extent of particle attrition during simulated calcium looping cycles in a fluidized bed were studied, with a focus on the influence of SO2in the flue gas. Five calcination/carbonation cycles (calcination at 850 °C and 20% CO2, carbonation at 700 °C and 16% CO2) were carried out with a reference limestone using different SO2concentrations during carbonation (110 and 1800 ppm). Attrition phenomena were characterized by following the modifications of bed sorbent particle size distribution and the elutriation rates of fines throughout conversion over repeated cycles. Results showed that the CO2capture capacity decreased with the cycles, as expected. The presence of SO2had a detrimental effect, but the SO2concentration affected the capacity less than anticipated. In-bed particle fragmentation was always limited, while the attrition rate decreased with the number of cycles, and was only moderately affected by the presence of SO2.
  • Identifier: System Number: ETOCvdc_100049579740.0x000001; Journal ISSN: 1385-8947; doi/10.1016/j.cej.2012.06.149
  • Publication Date: 2012
  • Physical Description: Electronic
  • Shelfmark(s): 3143.700000
  • UIN: ETOCvdc_100049579740.0x000001

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