Experimental and theoretical study of acetic-acid decomposition by a pulsed dielectric-barrier plasma in a gas–liquid two-phase flow
Experimental and theoretical study of acetic-acid decomposition by a pulsed dielectric-barrier plasma in a gas–liquid two-phase flow
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气液两相流中脉冲介电势垒等离子体分解乙酸的实验和理论研究
DOI：
10.1088/0963-0252/20/3/034015
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发表时间：
2011
影响因子：
3.8
通讯作者：
K. Yasuoka
中科院分区：
文献类型：
--
作者：
Y. Matsui;N. Takeuchi;K. Sasaki;R. Hayashi;K. Yasuoka
在气液两相流中，使用脉冲介电屏障等离子体演示了醋酸作为持久性物质在水中的分解。等离子体由35 kV， 200 Hz脉冲电压驱动，在浓度为10-40 mgTOC l−1的20 ml溶液中的氧泡中产生。用离子色谱法和吸光度法分别分析了溶液中离子种类和过氧化氢的浓度。60 min后，乙酸被血浆完全分解。对OH、H和O自由基发射强度的光学测量表明，本研究中生成的OH自由基处于基态。通过数值计算分析了气相自由基生成过程和液相自由基分解过程。在计算溶液中总有机碳（TOC）和H2O2浓度时，需要考虑o自由基诱导OH自由基的生成。考虑等离子体-水相互作用过程，得到的醋酸分解数据与实验结果吻合较好。
Decomposition of acetic acid as a persistent material in water was demonstrated using a pulsed dielectric-barrier plasma in a gas–liquid two-phase flow. The plasma was driven by 35 kV, 200 Hz pulsed voltages and generated in oxygen bubbles in 20 ml solution having a concentration of 10–40 mgTOC l−1. The concentrations of ion species and hydrogen peroxide in the solution were analyzed by ion chromatography and absorptiometry, respectively. After 60 min of operation, the acetic acid was completely decomposed by the plasma. Optical measurements of the emission intensities of OH, H and O radicals suggest that the generated OH radicals are in the ground state in this study. A numerical calculation was carried out to analyze the radical generation processes in the gas phase and decomposition in the liquid phase. O-radical-induced generation of OH radical needed to be considered in the calculation of total organic carbon (TOC) and H2O2 concentrations in the solution. By considering such plasma–water interaction processes, data for the decomposition of acetic acid, which were in good agreement with experimental results, were obtained.
影响因子：
1.5
作者：
Katayama, Hiroshi;Honma, Hiroyuki;Yasuoka, Koichi
通讯作者：
Yasuoka, Koichi
DOI：
--
发表时间：
2007
期刊：
影响因子：
--
作者：
K. Yasuoka;H. Katayama and S. Ishii
通讯作者：
H. Katayama and S. Ishii