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首页> 美国政府科技报告 >Toxic emissions from a cyclone burner boiler with an ESP and with the SNOX demonstration and from a pulverized coal burner boiler with an ESP/wet flue gas desulfurization system.
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Toxic emissions from a cyclone burner boiler with an ESP and with the SNOX demonstration and from a pulverized coal burner boiler with an ESP/wet flue gas desulfurization system.

机译：具有Esp和sNOX演示的旋风燃烧器锅炉以及具有Esp /湿法烟气脱硫系统的煤粉燃烧器锅炉的有毒排放。

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Emission factors for VOC and aldehydes, dioxins/furans, and PAH/SVOC are presented in Tables 6--8, respectively. Each table includes results for Coal Creek, Niles Boiler, and the SNOX process. As shown in Table 6, benzene and toluene were measured in the Coal Creek, Niles Boiler, and SNOX stack emissions in highly variable concentrations. Over 90 percent of the VOC analyzed were not detected in the stack gases, and the emission factor for these VOC ranges from 1.1 to 1.4 (mu)g/MJ for the three systems. Emission factors for the four aldehydes that were measured range from 0.47 to 31 (mu)g/MJ for Coal Creek, 1.7 to 38 (mu)g/MJ for the Niles Boiler, and 3.6 to 167 (mu)g/MJ for the SNOX process. Acetaldehyde is at the highest concentration of the four aldehydes in all three units, a finding which is consistent with previous work. Dioxin/furan emission factors are provided in Table 7. Emission, factors for these compounds range from 0.40 to 6.51 pg/MJ for Coal Creek and 0.45 to 8.14 pg/MJ for the Niles Boiler. Dioxins/furans were not determined in the SNOX process. The compounds 1,2,3,4,6,7,8heptachlorodibenzo-p-dioxin, octachlorodibenzo-p-dioxin, and 2,3,7,8-tetrachlorodibenzofuran were detected in both units. The predominance of these species in high SO(sub 2) environments has been previously observed. All other 2,3,7,8 substituted dioxin/furan isomers listed in Table 8 were not detected in either unit. Table 8 lists the emission factors for PAH/SVOC. Emission factors range from 0.3 to 233 ng/MJ for Coal Creek, 0.5 to 273 ng/MJ for the Niles Boiler, and 0.3 to 130 ng/MJ for the SNOX process. Acetophenone is at the highest concentration of the PAH/SVOC in all three units. Naphthalene, dibenzofuran, phenanthrene, and fluoranthene are also present at relatively high concentrations in comparison to the other PAH/SVOC.

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