TY - JOUR
T1 - Atmospheric oxidation of flue gases from coal-fired power plants-A comparison between conventional and scrubbed plumes
AU - Meagher, J. F.
AU - Stockburger, L.
AU - Bonanno, R. J.
AU - Bailey, E. M.
AU - Luria, M.
PY - 1981
Y1 - 1981
N2 - A series of plume samples was taken by instrumented aircraft to determine atmospheric oxidation rates of flue gases from coal-fired power plants. This study was carried out at two of TVA's large power plants: Colbert Steam Plant, located in Pride, Alabama, a conventional power plant that burns high (3.7%) sulfur coal; and Widows Creek Steam Plant, located at Stevenson, Alabama, which generates 29% of its electrical power from a boiler that burns high (3.9%) sulfur coal but that is equipped with a wet limestone SO2 scrubber. The average atmospheric oxidation rates at both sites were almost identical, indicating that the atmospheric oxidation rate is not significantly affected by the presence of a scrubber. The average morning rates for SO4= and NO3- formation for both the scrubbed and unscrubbed plumes were found to be 0.012 and 0.029 h-1 respectively. Rates larger by a factor of two were found for the afternoon measurements. For both parts of this study, the average rate for NO conversion to NO2 was found to be 0.51 h-1, and the rate for NOx removal was estimated to be 0.12 h-1. On one day during the second part of this study (August 23, 1978), net O3 production in the plume was observed. Net production of O3 was attributed to the mixing of the power plant plume with a polluted airmass transported from Chattanooga, Tennessee.
AB - A series of plume samples was taken by instrumented aircraft to determine atmospheric oxidation rates of flue gases from coal-fired power plants. This study was carried out at two of TVA's large power plants: Colbert Steam Plant, located in Pride, Alabama, a conventional power plant that burns high (3.7%) sulfur coal; and Widows Creek Steam Plant, located at Stevenson, Alabama, which generates 29% of its electrical power from a boiler that burns high (3.9%) sulfur coal but that is equipped with a wet limestone SO2 scrubber. The average atmospheric oxidation rates at both sites were almost identical, indicating that the atmospheric oxidation rate is not significantly affected by the presence of a scrubber. The average morning rates for SO4= and NO3- formation for both the scrubbed and unscrubbed plumes were found to be 0.012 and 0.029 h-1 respectively. Rates larger by a factor of two were found for the afternoon measurements. For both parts of this study, the average rate for NO conversion to NO2 was found to be 0.51 h-1, and the rate for NOx removal was estimated to be 0.12 h-1. On one day during the second part of this study (August 23, 1978), net O3 production in the plume was observed. Net production of O3 was attributed to the mixing of the power plant plume with a polluted airmass transported from Chattanooga, Tennessee.
UR - http://www.scopus.com/inward/record.url?scp=0019440370&partnerID=8YFLogxK
U2 - 10.1016/0004-6981(81)90279-1
DO - 10.1016/0004-6981(81)90279-1
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AN - SCOPUS:0019440370
SN - 0004-6981
VL - 15
SP - 749
EP - 762
JO - Atmospheric Environment
JF - Atmospheric Environment
IS - 5
ER -