共查询到19条相似文献,搜索用时 546 毫秒
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脉冲电晕等离子法烟气脱硫是年近来发展起来的一种物理和化学相结合的高新技术,具有广阔的发展前任本文结合我们自己开展的工作简要描述了脉冲电晕等离子法的脉冲电源和电极结构,介绍了目前研究广泛的三种脉冲电晕等离子法的脱硫原理。 相似文献
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脉冲电晕等离子体脱硫反应条件的优化 总被引:6,自引:0,他引:6
采用自行研制的超窄脉冲高压电源和等离子体反应器,研究脉冲电晕放电对模拟烟气中SO2的脱除规律,肯定了正脉冲电晕对SO2氧化脱除具有明显效果,并着重对脉冲电晕脱硫效果影响较大的脉冲电压峰值、间隙击穿频率、烟气温度、SO2初始浓度、烟气处理时间和脉冲重复频率等因素进行分析,指出优化反应条件的途径,为该技术的工业实用化研究提供理论和实验依据。 相似文献
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脉冲电晕放电降解CH2Cl2的初步研究 总被引:13,自引:0,他引:13
对高压脉冲电晕放电降解CH2Cl2进行初步研究,比较了正负脉冲电晕降解的活性,正脉冲电晕优于负脉冲电晕。探讨了脉冲形成电容Cp之值及反应器的电晕线材料对降解反应活性的影响。为进一步提高室温下CH2Cl2的降解,在反应器中加入BaTiO3为催化剂,在高压脉冲电场下,BaTiO3受激产生局部电晕,增强了电晕放电流性,提高了反应活性,CH2Cl2的转化率达90%以上。 相似文献
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本文针对脉冲电晕等离子体脱硫技术中的氨泄漏问题,采用无声放电电晕和高压直流电晕对氨气在加入反应器前进行活化处理。实验结果表明,利用电晕放电对氨气进行活化处理可显著提高脱硫效率,有效地减少氨泄漏 相似文献
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脉冲电晕对烟气中NOx和粉尘的脱除 总被引:1,自引:0,他引:1
本文采用自行研制的纳秒级窄脉冲电压发生器和等离子体反应器,在对脉冲电晕脱除SO_2过程进行了研究的基础上,继续对脉冲电晕脱除烟气中NO_x、粉尘的机理、规律及其影响因素进行研究,并探讨该方法集脱硫脱销、除尘为一体的可行性和实现方式.一、脉冲电晕脱除氮氧化物和粉尘的机理用脉冲电晕放电方法可获取低温常压下的非平衡 相似文献
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脉冲电晕法脱硫脱硝研究概述 总被引:12,自引:0,他引:12
本文概述了脉冲电晕脱硫脱硝研究所得的重要成果,着重总结了国内外有关电晕特性、反应机理、电源与反应器系统研究所得的重要结论。重点对该技术的前景作一展望。 相似文献
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In this paper, removal of NOx(namely DeNOx) from flue gas by radical injection combined with NaOH solution(26% by weight of NaOH in water) scrubbing was investigated. The experimental results showed that the steady streamer corona occurs through adjusting the flow rate of the oxygen fed into the nozzles electrode. The vapor in the oxygen has influence on the V-I characteristics of corona discharge. Both HNO2 and HNO3 come into being in the plasma reactor and the DeNOx efficiency in the plasma reactor is more than 60%. The overall DeNOx efficiency of the whole system reaches 81.7 % when the NaOH solution scrubbing is collaborated. 相似文献
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Non-thermal plasma technologies offer an innovative approach to decomposing various volatile organic compounds(VOCs). The decomposition of toluene from simulated flue gas was investigated using a pipe electrode with nozzles for the generation of free radicals. Corona characteristics and decomposition of toluene were investigated experimentally. In addition, the decomposition mechanism of toluene was explored in view of reaction rate. The experimental results showed that the humidity of additional gas has an important effect on corona characteristics and modes and stable streamer corona can be generated through optimizing flow rate and humidity of additional gas. Applied voltage, concentration of toluene, humidity of toluene and resident time are some important factors affecting decomposition efficiency. Under optimizing conditions, the decomposition efficiency of toluene can reach 80%. These results can give a conclusion that the corona radical shower technology is feasible and effective on the removal of toluene in the flue gas. 相似文献
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采用多针-板式电极,在70 m3/h烟气流量范围内,研究了水蒸气浓度、烟气流量、电场强度等因素对不饱和水蒸气正直流电晕放电烟气脱硫率的影响以及水蒸气电晕放电对脉冲放电烟气脱硫率的提高.研究结果表明,实验范围内,按照NH3∶SO2摩尔比为2∶1添加NH3的条件下,增加水蒸气流量、增强电场强度、减少烟气流量,烟气脱硫率能提高10%,达到60%左右.同时,水蒸气电晕放电能使脉冲放电的烟气脱硫率提高5%左右,达到90%以上. 相似文献
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IntroductionNowSO2 istheoneofmaingaspollutantsandthemaincauseofacidrainproblem .SO2removalby pulsecoronadischargeisanewDe SO2 techniquedevelopedduringlastten years(Masuda ,1 993;Mizuno ,1 986 ;Dinelli,1 990 ) .SO2 influegasisoxidizedbyactivatedradical(suchasOH ,HO2 ,NH2 ,O)w… 相似文献
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1IntroductionSincethe1970s,theCFCsandHalonsemitedbyhumanhavebeenwidelythoughtassubstanceswhichmaycauseozonedepletioninstrato... 相似文献
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