Plasma-Catalytic Decomposition of 2,4-Dichlorophenol in a Dielectric Barrier Discharge with a Vermiculite ZiO2 Composite  

作　　者：Grigoriy I. Gusev Andrey A. Gushchin Vladimir I. Grinevich Ekaterina M. Baburina Ekaterina S. Severgina Natalya E. Gordina Grigoriy I. Gusev;Andrey A. Gushchin;Vladimir I. Grinevich;Ekaterina M. Baburina;Ekaterina S. Severgina;Natalya E. Gordina(Department of Industrial Ecology, Ivanovo State University of Chemical Technology, Ivanovo, Russia;Department of Technology of Inorganic Substances, Ivanovo State University of Chemistry and Technology, Ivanovo, Russia)

机构地区：[1]Department of Industrial Ecology, Ivanovo State University of Chemical Technology, Ivanovo, Russia [2]Department of Technology of Inorganic Substances, Ivanovo State University of Chemistry and Technology, Ivanovo, Russia

出　　处：《Advances in Chemical Engineering and Science》2023年第4期318-335,共18页化学工程与科学期刊（英文）

摘　　要：The paper presents comparative kinetic characteristics of the decomposition of 2,4-dichlorophenol in a dielectric barrier discharge and a combined plasma-catalytic process. Vermiculite containing 5% zirconium was used as a catalyst. The destruction processes of 2,4-DCP proceed efficiently, the degree of decomposition increases in the combined plasma-catalytic process by a factor of 1.33 and reaches 80%. The experimental results were processed according to the first-order kinetic law (R² > 0.97), according to which the effective constants (0.36 ± 0.04) and (0.51 ± 0.03) s^-1 and the decomposition rates of 2,4-DCP (106 and 123 μmol/l·s) when treating model solutions without a catalyst and with vermiculite + Zr 5%, respectively, and the energy costs are 0.012 and 0.017 molecules/100eV. The main decomposition products present in the solution have been determined to be carboxylic acids, aldehydes, the contribution of which does not exceed 2%, as well as chloride ions, and in the gas phase they are carbon dioxide and molecular chlorine (the share of which does not exceed 1.5% of total chlorine content in the system).The paper presents comparative kinetic characteristics of the decomposition of 2,4-dichlorophenol in a dielectric barrier discharge and a combined plasma-catalytic process. Vermiculite containing 5% zirconium was used as a catalyst. The destruction processes of 2,4-DCP proceed efficiently, the degree of decomposition increases in the combined plasma-catalytic process by a factor of 1.33 and reaches 80%. The experimental results were processed according to the first-order kinetic law (R² > 0.97), according to which the effective constants (0.36 ± 0.04) and (0.51 ± 0.03) s^-1 and the decomposition rates of 2,4-DCP (106 and 123 μmol/l·s) when treating model solutions without a catalyst and with vermiculite + Zr 5%, respectively, and the energy costs are 0.012 and 0.017 molecules/100eV. The main decomposition products present in the solution have been determined to be carboxylic acids, aldehydes, the contribution of which does not exceed 2%, as well as chloride ions, and in the gas phase they are carbon dioxide and molecular chlorine (the share of which does not exceed 1.5% of total chlorine content in the system).

关 键 词：2 4-Dichlorophenol Dielectric Barrier Discharge PLASMA Oxygen Treatment Water Treatment Catalyst ZIRCONIUM VERMICULITE 

分 类 号：O62[理学—有机化学]