CIESC Journal ›› 2010, Vol. 61 ›› Issue (1): 86-90.
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YAN Mi,LI Xiaodong,ZHANG Xiaoxiang,LU Shengyong,YAN Jianhua
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严密,李晓东,张晓翔,陆胜勇,严建华
Abstract:
The effect of water on the formation of polychlorinated dibenzo-p-dioxins(PCDDs)and dibenzofurans(PCDFs)from precursor was investigated by the experiments with a fixed-bed reactor:the reactant mixture with different moisture of 123-TrCB and CuCl2 for metal-catalyzed formation,that of 123-TrCB and fly ash for surface-catalyzed formation. The experimental results show that the water has the following effects:first,suppressing the formation of PCDD/Fs as less its yield;second,inhibiting chlorination reaction as lower chlorination degree;third,having different effect on PCDDs and PCDFs as lower ratio of PCDFs/PCDDs.The explanations might be the competitive adsorption of water vapor with TrCB on active sites of the fly ash and the catalysis of copper was weakened chloride because of its oxidative conversion to copper oxide.
Key words: 水, 二噁英, 催化, 燃烧
水,
关键词: 水, 二噁英, 催化, 燃烧
YAN Mi, LI Xiaodong, ZHANG Xiaoxiang, LU Shengyong, YAN Jianhua. Effect of water on catalyzed formation of polychlorinated dibenzo-p-dioxins and dibenzofurans from precursor[J]. CIESC Journal, 2010, 61(1): 86-90.
严密, 李晓东, 张晓翔, 陆胜勇, 严建华. 水对前驱物催化合成二噁英的影响 [J]. 化工学报, 2010, 61(1): 86-90.
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