采用同轴放电管的高功率脉冲流光电晕反应器用于气体处理应用

S. Kato, K. Naito, K. Nawashiro, Y. Kawakita, M. Hakoda
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引用次数: 0

摘要

我们报告了我们的研究脉冲高功率流光电晕阅读器使用一个简单的同轴放电管用于工业气体处理过程,如臭氧产生和烟气清理。对于这些工艺的工业应用,更高的放电功率密度有利于实现更高的生产率。作为研究更高放电功率密度的第一步,我们对以干空气为原料的重复脉冲流光电晕放电特性进行了实验研究。结果表明,放电电流随重复率的增加而减小,随气体流量的增加而增大。实验获得的最大放电功率密度约为100 W/l (/spl sim/25 kV, /spl sim/75 A, /spl sim/100 ns, 170 pps, 0.3l)。在此条件下,气体温升约为20/spl sim/ 25%。由于它不会高到严重影响气体处理,因此可以在更高的放电功率密度下运行。本实验还测量了臭氧的生成,获得的最低臭氧能量成本为9/spl sim/10 Wh/gO/sub 3/,低于商用静音放电型臭氧发生器。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
High power pulsed streamer corona reactor using a coaxial discharge tube for gas treatment applications
We report on our investigations of a pulsed high power streamer corona reader using a simple coaxial discharge tube for industrial gas treatment processes, such as ozone generation and flue gas cleanup. For industrial usages of these processes, higher discharge power density is favorable to achieve higher productivity. As a first step of research aiming at the higher discharge power density, we examined experimentally characteristics of the repetitive pulsed streamer corona discharge using dry air as feed gas. As a result, the dependency that the discharge current decreases with repetition rate and increases with gas flow rate has been found. The maximum discharge power density of about 100 W/l (/spl sim/25 kV, /spl sim/75 A, /spl sim/100 ns, 170 pps, 0.3l) was obtained in this experiment. The gas temperature rise at this condition was about 20/spl sim/25 %. Because it is not so high as to affect gas treatment badly, it will be possible to operate at still higher discharge power density. We also measured generated ozone in this experiment and the lowest ozone energy cost obtained was 9/spl sim/10 Wh/gO/sub 3/, which was lower than that of a commercial silent discharge type ozonizer.
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