机构地区: 浙江大学机械与能源工程学院能源清洁利用国家重点实验室
出 处: 《燃烧科学与技术》 2006年第3期253-256,共4页
摘 要: 以1,2,3-三氯苯作为前趋物,在管式炉中研究了其在垃圾焚烧飞灰表面低温生成二恶英的分布特性,运用高分辨气相色谱/低分辨质谱仪分别测定了气相和固相中的二恶英总量以及毒性当量I-TEQ值.实验结果表明, 250℃是1,2,3-三氯苯在飞灰表面生成二恶英的最佳温度,生成的二恶英主要分布在气相中,与五氯酚相比,氯苯属于反应活性低的二恶英前趋物. 1,2,3-trichlorobenzene spiked fly ash produced from municipal solid waste incineration were thermally treated under different temperatures in a tubular furnace. The concentration and I-TEQ value of PCDD/Fs in the flue gas and residue were detected by high resolution gas chromatograph coupled to low resolution mass spectrometry (HRGC/LRMS) respeetively. The results show that 250℃ is the optimum temperature for PCDD/Fs formation from 1,2,3-triehlorobenzne and fly ash. The plentiful PCDD/Fs were found in flue gas. Chlorobenzene was less reactive compared with pentaehlorophenol.
领 域: [动力工程及工程热物理]