Effects of SO2 and SO3 on the formation of polychlorinated dibenzo-p-dioxins and dibenzofurans by de novo synthesis |
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| Authors: | Ke Shao Jian-hua Yan Xiao-dong Li Sheng-yong Lu Mu-xing Fu Ying-lei Wei |
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| Affiliation: | (1) Shimadzu Techno-Research Inc., 1 Nishinokyo-Shimoaicho, Nakagyo-ku Kyoto, 604-8436, Japan;(2) Japan PVC Environmental Affairs Council, Uchisaiwaicho 2-1-1, Chiyoda-ku Tokyo, 100-0011, Japan;(3) Department of Natural Sciences and Mathematics, Savannah State University, 13219 College Street, Savannah, GA 31404, USA;(4) Present address: Department of Natural Sciences and Mathematics, Savannah State University, P.O. Box 20600, Savannah, GA 31404, USA; |
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| Abstract: | The effects of SO2,SO3 on de novo synthesis of polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) were studied using model fly ashes incorporating copper oxide and activated carbon. It was found that the inhibitive effect of SO2 on PCDD/Fs formation is similar to that of SO3. To investigate the inhibition mechanism,CuSO4 formations from both CuO and CuCl2 were examined. The ability of SO3 to convert CuCl2 and CuO on a silica support into sulfate is much stronger than that of SO2. However,re... |
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| Keywords: | Cuprous chloride Model fly ash Sulfation Cupric chloride |
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