CIESC Journal
• 催化、动力学与反应器 • 上一篇 下一篇
范红玉,李小松,刘艳霞,刘景林,赵德志,朱爱民
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FAN Hongyu, LI Xiaosong, LIU Yanxia, LIU Jinglin, ZHAO Dezhi, ZHU Aimin
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Non-thermal plasmas(NTPs)technique has a great potential for indoor air purification, however, the high energy cost and secondary pollutants formation limit its practical application. To resolve these problems, a cycled storage-discharge(CSD)plasma catalytic process was explored for the removal of low-concentration toluene from indoor air in this study. The performance of toluene storage and plasma catalytic oxidation of adsorbed-state toluene over non-loaded and silver-loaded HZSM-5 catalysts was investigated. The experimental results showed that silver-loaded HZSM-5 catalysts gave a longer breakthrough time than non-loaded HZSM-5 catalysts at the storage stage(storage condition: 0.1 g·m-3 C7H8, 40% relative humidity(RH, 25℃), 2000 ml·min-1 flow rate of simulated air).With input power of 40 W, the adsorbed-state toluene could be almost oxidized to CO2 in 10 min at the discharge stage(carbon balance about 100%, CO2 selectivity 98.2%).It was further proved that there was no toluene desorbed during the process of plasma catalytic oxidation by on-line detection with mass spectrometry(MS)and Fourier transform infrared spectrometry(FTIR).Preliminary investigation on the stability of the CSD process for toluene removal was conducted. This study provides a novel plasma catalytic process for removing toluene from indoor air.
范红玉,李小松,刘艳霞,刘景林,赵德志,朱爱民. 循环的存储-放电等离子体催化新过程脱除室内空气中甲苯 [J]. CIESC Journal.
FAN Hongyu, LI Xiaosong, LIU Yanxia, LIU Jinglin, ZHAO Dezhi, ZHU Aimin. Cycled storage-discharge plasma catalytic process for toluene removal from indoor air[J]. .
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https://hgxb.cip.com.cn/CN/Y2011/V62/I7/1922