Trace Element Mass Balance Around a Coal-Fired Steam Plant
1975; American Chemical Society; Linguagem: Inglês
10.1021/ba-1975-0141.ch013
ISSN0065-2393
AutoresN. E. Bolton, J. A. CARTER, J.F. Emery, Cyrus Feldman, W. Fulkerson, L.D. Hulett, W. S. Lyon,
Tópico(s)Metallurgical Processes and Thermodynamics
ResumoMass balance measurements for 41 elements have been made around the Thomas A. Allen Steam Plant in Memphis, Tenn. For one of the three independent cyclone boilers at the plant, the concentration and flow rates of each element were determined for coal, slag tank effluent, fly ash in the precipitator inlet and outlet (collected isokinetically), and fly ash in the stack gases (collected isokinetically). 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% or less) for many elements. Exceptions were those elements such as mercury, which form volatile compounds. For most elements in the fly ash, the newly installed electrostatic precipitator was extremely efficient.
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