Utilization of AFBC waste by-product as a FGD sorbent for circulating dry scrubbing

Technical Report · Thu Jun 01 04:00:00 EDT 1995

OSTI ID:121481

Neathery, J K; Schaefer, J; Stencel, J ^[1]

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1. Univ. of Kentucky, Lexington, KY (United States); and others

The Tennessee Valley Authority (TVA) is currently evaluating the feasibility of using atmospheric fluidized bed combustion (AFBC) by-product material as a supplemental sorbent in their circulating dry scrubber (CDS) reactor at the Center for Emissions Research. Spent FBC sorbent could be hydrated or slaked along with a pebble lime sorbent and injected as a slurry into the CDS reactor. A research program was successfully conducted by the Center for Applied Energy Research (CAER) to investigate the feasibility of using the available lime in spent AFBC sorbent as a co-sorbent for the CDS process. The reactor SO{sub 2} capture efficiency was used to gauge the performance of the various sorbent mixtures of Ca(OH){sub 2} and spent AFBC material at a nominal 1.3 Ca/S ratio. In nearly all cases, the SO{sup 2} capture results from lime/AFBC slurry tests were comparable to those of the lime-only baseline tests.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (United States)
• OSTI ID: 121481
• Report Number(s): EPRI-TR--105258-Vol.1; CONF-950332--Vol.1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
20 FOSSIL-FUELED POWER PLANTS
AIR POLLUTION CONTROL
DESULFURIZATION
DRY SCRUBBERS
FLUE GAS
FLUIDIZED-BED COMBUSTION
FLY ASH
FOSSIL-FUEL POWER PLANTS
PERFORMANCE
SLURRIES
SOLID WASTES
SULFUR DIOXIDE
USES