연속식 흐름 가스상물질의 전자선 분해반응에서 전류 세기가 반응효율 및 kinetics에 미치는 영향
Effects of Current Intensity on the Reaction Efficiency and Kinetics of Gas Compound Decomposition by Electron Beam in a Continuous Flow System
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Electron beam technology has recently attracted attention as one of the powerful air pollution controlmethods. In this study, methyl mercaptan decomposition by electron beam in a continuous gas flow system wasstudied. To this, the effect of gas flowrate, which is one of important operating variables in the continuous gas flowelectron beam process, on methyl mercaptan treatment efficiency was studied. In particular, the treatment efficiencyand the reaction kinetics of methyl mercaptan decomposition were compared when calculated based on the absorbeddose and when calculated based on the current intensity of electron beam. When based on the electron beam absorbeddose, the treatment efficiency and 1st-order reaction constant increased as the gas flowrate was increased, contraryto the trends in general chemical reactions. However, when based on the current intensity, the treatment efficiencyand 1st-order reaction constant increased as the gas flowrate was decreased, which can be theoretically explained. This is due to the fact that the current intensity increased as the gas flowrate was increased, resulting in improved theelectron beam treatment efficiency. In conclusion, it is necessary to consider not only the absorbed dose but also thecurrent intensity of electron beam in order to explain the results of reaction efficiencies and kinetics in the continuousflow electron beam gas treatment process.
Abstract
Electron beam technology has recently attracted attention as one of the powerful air pollution controlmethods. In this study, methyl mercaptan decomposition by electron beam in a continuous gas flow system wasstudied. To this, the effect of gas flowrate, which is one of important operating variables in the continuous gas flowelectron beam process, on methyl mercaptan treatment efficiency was studied. In particular, the treatment efficiencyand the reaction kinetics of methyl mercaptan decomposition were compared when calculated based on the absorbeddose and when calculated based on the current intensity of electron beam. When based on the electron beam absorbeddose, the treatment efficiency and 1st-order reaction constant increased as the gas flowrate was increased, contraryto the trends in general chemical reactions. However, when based on the current intensity, the treatment efficiencyand 1st-order reaction constant increased as the gas flowrate was decreased, which can be theoretically explained. This is due to the fact that the current intensity increased as the gas flowrate was increased, resulting in improved theelectron beam treatment efficiency. In conclusion, it is necessary to consider not only the absorbed dose but also thecurrent intensity of electron beam in order to explain the results of reaction efficiencies and kinetics in the continuousflow electron beam gas treatment process.
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