Simultaneous CO{sub 2}/SO{sub 2} capture characteristics of three limestones in a fluidized-bed reactor
- Korea Institute of Energy Research, Daejeon (Republic of Korea)
Simultaneous CO{sub 2}/SO{sub 2} capture characteristics of three limestones were investigated in a pilot scale fluidized-bed reactor. For each of these sorbents, the measured CO{sub 2} capture capacity decreased as the number of cycles increased and as the SO{sub 2} concentration increased. On the other hand, the SO{sub 2} capture increased with the number of cycles and the SO{sub 2} concentration. The total calcium utilization decreased as the number of cycles increased, but the effect of SO{sub 2} concentration on the total calcium utilization depended on the sulfation pattern of limestone. For one limestone (with unreacted-core-type sulfation), the total calcium utilization decreased with increasing SO{sub 2} concentration. However, for the other two limestones (with uniform-type sulfation), the total calcium utilization was almost independent of SO{sub 2} concentration for the range investigated. The results show that SO{sub 2} reduces the CO{sub 2} capture capacity of limestone and indicate that the sulfation patterns affect the CO{sub 2} capture capacity. 17 refs., 11 figs., 3 tabs.
- OSTI ID:
- 20781463
- Journal Information:
- Energy and Fuels, Vol. 20, Issue 4; Other Information: hjryu@kier.re.kr; ISSN 0887-0624
- Country of Publication:
- United States
- Language:
- English
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