SO{sub 2} removal and CO{sub 2} capture by limestone resulting from calcination/sulfation/carbonation cycles

Journal Article · Sat Oct 01 00:00:00 EDT 2005 · Energy and Fuels

OSTI ID:20674542

Li, Yan; Buchi, Steve; Grace, John R; Lim, C Jim ^[1]

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1. University of British Columbia, Vancouver, BC (Canada)

Experiments were conducted in a dual-environment thermogravimetric reactor to investigate the interaction between calcination, sulfation, and carbonation for a limestone that had previously been shown to sulfate primarily in an unreacted core manner. The results indicate that carbon dioxide (CO{sub 2}) can reactivate partially sulfated sorbent particles, contributing to an increase in overall calcium utilization efficiency. The ability of sorbents to recapture CO{sub 2} decreases when cycles of calcination and carbonation are performed, following a pattern similar to sulfation/hydration cycling. 16 refs., 10 figs., 3 tabs.

• OSTI ID: 20674542
• Journal Information: Energy and Fuels, Vol. 19, Issue 5; Other Information: [e-mail]; ISSN 0887-0624
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
SULFUR DIOXIDE
REMOVAL
CARBON DIOXIDE
CAPTURE
LIMESTONE
CALCINATION
SULFATION
THERMAL GRAVIMETRIC ANALYSIS