Trace element mass balance around a coal-fired steam plant

Conference · Thu Jan 01 04:00:00 EST 1976 · Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States)

OSTI ID:7341960

Bolton, N E; Carter, J A; Emery, J F; Feldman, C; Fulkerson, W; Hulett, L D; Lyon, W S

In a collaborative effort between Oak Ridge National Laboratory and the Tennessee Valley Authority, mass balance measurements for some 41 elements have been made around the Thomas A. Allen Steam Plant in Memphis, Tennessee. For one of the three independent cyclone boilers at the plant, the concentration and flow rates of each element were determined for: (1) the coal, (2) the slag tank effluent, (3) the fly ash in the precipitator inlet and outlet (collected isokinetically at a representative series of duct locations determined by the gas flow profiles), and (4) fly ash in the stack gases (collected isokinetically at the 268-ft level). Measurements by neutron activation analysis, spark source mass spectroscopy (with isotope dilution for some elements), and atomic adsorption spectroscopy yielded an approximate balance (closure to within 30 percent or less) for many elements. Exceptions were those elements forming volatile compounds such as Hg. For most elements in the fly ash the newly installed electrostatic precipitators were extremely efficient. An exception seems to be Se.

• Research Organization: Oak Ridge National Lab., TN
• OSTI ID: 7341960
• Conference Information: Journal Name: Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States) Journal Volume: 18:4
• Country of Publication: United States
• Language: English

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ACTIVATION ANALYSIS
AEROSOL WASTES
ALKALINE EARTH METALS
ANTIMONY
ARSENIC
BERYLLIUM
CADMIUM
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMIUM
COAL
COMBUSTION
ELEMENTS
ENERGY SOURCES
ENVIRONMENTAL EFFECTS
FLY ASH
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUELS
ISOTOPE APPLICATIONS
ISOTOPE DILUTION
LEAD
MASS BALANCE
MASS SPECTROSCOPY
MERCURY
METALS
NICKEL
OXIDATION
POWER PLANTS
SELENIUM
SEMIMETALS
SPECTROSCOPY
THERMAL POWER PLANTS
TRACE AMOUNTS
TRACER TECHNIQUES
TRANSITION ELEMENTS
VANADIUM
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ZINC