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EVALUATION OF PILOT ESP PERFORMANCE WITH ELEVATED LOADINGS FROM SORBENT INJECTION PROCESSES
Citation:
Sedman, C., R. Valentine, AND N. Plaks. EVALUATION OF PILOT ESP PERFORMANCE WITH ELEVATED LOADINGS FROM SORBENT INJECTION PROCESSES. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/D-91/244 (NTIS PB92113117), 1991.
Description:
The paper gives results of an evaluation of pilot electrostatic precipitator (ESP) performance with elevated loadings from the advanced silicate (ADVACATE) sorbent injection process. Measurements were made of a calcium silicate sorbent injected into a duct upstream of an ESP. he concentration of ADVACATE sorbent submicron particles (=/< 1 micrometer) and projected ESP emissions tended to peak and began to decrease when the overall particulate matter addition rate to the gas stream approached and then exceeded 12 g/Nm3. he submicron fly ash, subjected to the same duct injection, increased linearly with increased injection rates from 3 to 24 g/Nm3. ossible explanation is in-duct agglomeration of fines by the coarse particles, similar to observations reported on cyclone performance evaluations. he duct, flue gas, and sorbent characteristics that affect agglomeration tendencies probably play a major role in the observations presented. ost of the ADVACATE material settled out of the gas stream. easurements of the gas-suspended residual particulate matter were used to model expected ESP performance. he encouraging results of the modeling suggest that collection of reacted ADVACATE sorbent in a ESP is manageable.
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EVALUATION OF PILOT ESP PERFORMANCE WITH ELEVATED LOADINGS FROM SORBENT INJECTION PROCESSES