Emission characteristics of PCDD/Fs, PCBs, chlorobenzenes, chlorophenols, and PAHs from polyvinylchloride combustion at various temperatures
Emission characteristics of PCDD/Fs, PCBs, chlorobenzenes, chlorophenols, and PAHs from polyvinylchloride combustion at various temperatures
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DOI：
10.1080/10473289.2004.10470925
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发表时间：
2004-05-01
影响因子：
2.7
通讯作者：
Kim, MG
中科院分区：
文献类型：
--
作者：
Kim, KS;Hong, KH;Kim, MG
使用下游管式炉研究温度对聚氯乙烯 (PVC) 燃烧的影响，以形成多环芳烃 (PAH) 和氯化化合物。随着温度升高，产生的多环芳烃含量更高。氯化化合物在 600 摄氏度时达到峰值，在 300 和 900 摄氏度时排放量较低。多氯联苯 (PCB)、六氯苯、五氯苯、多氯二苯并对二恶英和多氯二苯并呋喃 (PCDD/F) 之间存在密切相关性 (R-2 = 0.97)。所有温度下的多环芳烃均在气相中进行分析。 PCDD/F 和 PCB 在 300 和 600 摄氏度时以固相形式排放，在 900 摄氏度时以气相形式释放。对于某些PAHs、氯苯和PCDD/Fs，推导了气固相与温度倒数之间半对数比例的数学方程。所提出的方程为 log（气相量/固相量）= -A/T + B，其中 T 是炉子温度，A 和 B 是常数，对于这些与气/固分布相关的物质，显示出良好的关系。
The effect of temperature on polyvinylchloride (PVC) combustion using a downstream tubular furnace was investigated for the formation of polycylcic aromatic hydrocarbons (PAHs) and chlorinated compounds. As the temperature increased, higher levels of PAHs were generated. Chlorinated compounds reached a peak at 600 degreesC, with low emissions recorded at 300 and 900 degreesC. There was a close correlation (R-2 = 0.97) among polychlorinated biphenyls (PCBs), hexachlorobenzene, pentachlorobenzene, and polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs). PAHs at all temperatures were analyzed in the gas phase. PCDD/Fs and PCBs were emitted as a solid phase at 300 and 600 degreesC and as a gas phase at 900 degreesC. For some PAHs, chlorobenzenes, and PCDD/Fs, a mathematical equation between the gas and solid phase and the reciprocal temperature in semilog proportion was derived. The proposed equation, which is log (amount in gas phase/amount in solid phase) = -A/T + B, where T is the temperature of the furnace and A and B are constants, for these species relating their gas/solid distributions showed a good relationship.