New high-capacity, calcium-based sorbents - calcium silicate sorbents

Technical Report · Wed Jan 01 04:00:00 EST 1992

OSTI ID:6809948

Kenney, M E; Chiang, R K ^[1]

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1. Case Western Reserve Univ., Cleveland, OH (United States). Dept. of Chemistry

A search is being carried out for new calcium-based sorbents for S0[sub 2] in flue gas that are highly cost-effective. This search is focused on calcium silicates. These compounds are being investigated because evidence in the literature suggests that Ca(OH)[sub 2]-fly ash sorbents contain calcium silicates and because calcium, silicon, and oxygen (the elements in calcium silicates) are common and readily available. Five objectives were chosen for the first year of this effort. These were: (1) to collect information on the known calcium silicates, (2) to acquire a set of calcium silicates that are potential S0[sub 2] sorbents, (3) to identify the silicates in Ca(OH)[sub 2]-fly ash sorbents, (4) to build a bench-scale S0[sub 2] sorption system, and (5) to begin to test the sorption capacity of the calcium silicates acquired with the sorption system. During this first year, a detailed survey of the literature on calcium silicates was carried out. This survey uncovered more than thirty reasonably well-characterized calcium silicates. Enough of the silicate was acquired to permit informative testing of it as a sorbent in the sorption system once the system has been made fully operational.

• Research Organization: Ohio Coal Development Office, Columbus, OH (United States); Case Western Reserve Univ., Cleveland, OH (United States). Dept. of Chemistry
• Sponsoring Organization: STOFOH; Ohio State Government, Columbus, OH (United States)
• OSTI ID: 6809948
• Report Number(s): OCDO-93004572; ON: TI93004572; CNN: CDO/R-87-2C/B
• Country of Publication: United States
• Language: English

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