CAJ | 학술논문

催化剂是二英（PCDD/Fs）从头合成的关键因素，但已有研究仍不足。在实验室条件下利用模拟飞灰（MFA）研究不同金属催化剂对PCDD/Fs生成量及分布的影响。结果表明，ZnO抑制PCDD/Fs的生成，ZnCl2对PCDD/Fs生成催化作用远大于CdCl2，生成PCDD/Fs浓度分别为431.78、6.32 ng·g?1。ZnCl2催化下生成PCDD/Fs浓度是ZnO的338倍，CdCl2催化下生成PCDD/Fs浓度是CdO的3倍。Zn、Cd化合物催化下生成PCDD/Fs氯化程度低。利用主成分分析（PCA）研究催化剂对PCDD/Fs分布的影响，结果表明不同金属催化剂作用下，17种有毒PCDD/Fs分布变化显著。同时ZnCl2催化下，反应气氛中氧含量的提高导致PCDD/Fs生成量增加，但是对PCDD/Fs分布的影响有限。
최화제시이영（PCDD/Fs）종두합성적관건인소，단이유연구잉불족。재실험실조건하이용모의비회（MFA）연구불동금속최화제대PCDD/Fs생성량급분포적영향。결과표명，ZnO억제PCDD/Fs적생성，ZnCl2대PCDD/Fs생성최화작용원대우CdCl2，생성PCDD/Fs농도분별위431.78、6.32 ng·g?1。ZnCl2최화하생성PCDD/Fs농도시ZnO적338배，CdCl2최화하생성PCDD/Fs농도시CdO적3배。Zn、Cd화합물최화하생성PCDD/Fs록화정도저。이용주성분분석（PCA）연구최화제대PCDD/Fs분포적영향，결과표명불동금속최화제작용하，17충유독PCDD/Fs분포변화현저。동시ZnCl2최화하，반응기분중양함량적제고도치PCDD/Fs생성량증가，단시대PCDD/Fs분포적영향유한。
Catalyst is the key factor for formation of dioxins i.e. PCDD/Fs, for which there is not enough study currently. In this paper, the effect of different metal catalyst contained in model fly ash (MFA) on both PCDD/Fs concentration and distribution is studied under laboratory conditions. The results show that ZnO can inhibit the formation of PCDD/Fs. The catalytic effect of ZnCl2 on PCDD/Fs is far more obvious than that of CdCl2 and the concentrations of PCDD/Fs obtained are 341.78 and 16.32 ng·g?1, respectively. PCDD/Fs formed by ZnCl2 promotion is 338 times as many as that of ZnO, while the concentration of PCDD/Fs catalyzed by CdCl2 is twice more than that of CdO. Principal component analysis (PCA) is used to research the effect of catalyst on PCDD/Fs distribution. It is observed that the change of distribution for 17 toxic PCDD/Fs catalyzed by different metal catalyst is significant. Meanwhile, the PCDD/Fs concentration rises with increase of O2 content, but for PCDD/Fs distribution it has only limit influence.