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Degradation of toluene in flue gas by low temperature plasma catalysis |
SHANG Chao1, WEI Xian-Ge1, BAI Min-Dong2, DU Chang-Ming1 |
1. School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China; 2. College of the Environment&Ecology, Xiamen University, Xiamen 361102, China |
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Abstract A plasma micro discharge packed bed reactor and a plasma micro discharge packed bed reaction system were developed and porous ceramic was used as the packed bed material. The effects of residence time, catalyst loading, initial concentration, energy density and discharge voltage on the toluene removal ability of the reaction system were investigated by using the control variable method. The experimental results showed that the optimal parameter profile for above five factors was 1.1s, Co/Mn catalyst with catalyst loading of 15% and molar ratio of 0.25, 189.52mg/m3, 6000J/L and 9.5kV, respectively. Meanwhile, the characterization of the porous ceramic packed bed by SEM and XRD showed that Mn catalyst included Mn2O3 and Mn3O4 crystal, Co/Mn catalyst included CoMnO3 and MnO2 crystal, Fe/Mn catalyst included FeMnO3, Fe2O3 and Mn2O3 crystal, and the crystal particle of Mn catalyst was more uniform than that of Co/Mn catalyst and Fe/Mn catalyst.
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Received: 09 February 2020
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