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脉冲电晕反应器分解含氯有机废气实验研究 总被引:3,自引:0,他引:3
采用线-筒式电晕反应器对二氯甲烷和三氯乙烯有机废气的去除效果进行了实验研究.实验考察了峰值电压、脉冲频率、停留时间等因素对去除率的影响.研究结果表明峰值电压能显著影响有机废气的去除率,当峰值电压从17.5 kV提高到25 kV时,二氯甲烷和三氯乙烯的去除率分别从8%和39%上升到31%和76%.随着脉冲频率的提高,有机物的去除率也上升.实验还发现,增加气体停留时间,有利于提高二氯甲烷和三氯乙烯的去除率.通过FR-IR对分解产物的分析,发现最终分解产物为CO,CO2,H2O和HCl. 相似文献
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??The microstructure and properties of die steels with Ti and without Ti at different austenitizing temperatures were studied through the combination of thermodynamic calculation and experiment. The results show that the total solution temperature of Cr23C6, Cr7C3, VC, V2C, V8C7, MoC, Mo2C and TiC is 748. 2, 952. 7, 977. 3, 632. 9, 1116. 0, 1131. 2, 645. 3 and 1044. 1??, respectively. Hardness and impact toughness both increase with the increase in temperature. When the austenitizing temperature is above 1200 ??, it has a greater influence on the hardness. Toughness of die steel with Ti is better than that without Ti. The grain becomes coarse and the amount of martensite increases with the increase of temperature. The average grain size of the die steel with Ti is 21. 4??m smaller than that without Ti, and the size of the undissolved phase of the former is about 0. 2??m smaller than that of the latter. 相似文献
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长江水系航道得天独厚的自然条件和区位优势,决定其在西部大开发的基础设施建设中占有十分重要的地位和作用。加快长江航运的建设。以长江干流和西部地区主要通航河流为建设重点,打通数条水上运输大通道,既是西部大开发的重要内容,又将促进西部大开发战略目标的早日实现。长江干流是西部地区的出海大通道,且有较好基础,整体优势十分明显,应作为西部水运通道的重中之重。另几条河流的腹地范围相对较小,是区域性水运通道,且多 相似文献
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