Gas-phase and particle-phase PCDD/F congener distributions in the flue gas from an iron ore sintering plant  

作　　者：Xiaolong Liu Meng Ye Xue Wang Wen Liu Tingyu Zhu 

机构地区：[1]Beijing Engineering Research Center of Process Pollution Control,National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology,Institute of Process Engineering,Chinese Academy of Sciences

出　　处：《Journal of Environmental Sciences》2017年第4期239-245,共7页环境科学学报（英文版）

基　　金：supported by the State 863 Project(No.2013AA065102,2012AA062501);the National Natural Science Foundation of China(No.21207132)

摘　　要：The activated carbon injection-circulating fluidized bed（ACI-CFB）-bag filter coupling technique was studied in an iron ore sintering plant. For comparison, the removal efficiencies under the conditions without or with ACI technology were both evaluated. It was found that the polychlorinated dibenzo-p-dioxins and dibenzofuran（PCDD/F） removal efficiency for total international toxic equivalence quantity（I-TEQ） concentration was improved from 91.61% to 97.36% when ACI was employed, revealing that ACI was very conducive to further controlling the PCDD/F emissions. Detailed congener distributions of PCDD/Fs in the gas-phase and particle-phase of the Inlet and Outlet samples were determined. Additionally, the PCDD/F distribution for the Fly ash-with ACI sample of was also studied.The activated carbon injection-circulating fluidized bed（ACI-CFB）-bag filter coupling technique was studied in an iron ore sintering plant. For comparison, the removal efficiencies under the conditions without or with ACI technology were both evaluated. It was found that the polychlorinated dibenzo-p-dioxins and dibenzofuran（PCDD/F） removal efficiency for total international toxic equivalence quantity（I-TEQ） concentration was improved from 91.61% to 97.36% when ACI was employed, revealing that ACI was very conducive to further controlling the PCDD/F emissions. Detailed congener distributions of PCDD/Fs in the gas-phase and particle-phase of the Inlet and Outlet samples were determined. Additionally, the PCDD/F distribution for the Fly ash-with ACI sample of was also studied.

关 键 词：PCDD/Fs Congener distribution Iron ore sintering plant Flue gas Fly ash 

分 类 号：X757[环境科学与工程—环境工程]