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Developemtn of an ozonizer using a ceramic honeycomb

使用陶瓷蜂窝的臭氧发生器的开发

基本信息

批准号：
60850055
负责人：
KONDO Y.
金额：
$ 1.22万
依托单位：
Toyota College of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research
财政年份：
1985
资助国家：
日本
起止时间：
1985 至 1987
项目状态：
已结题

项目摘要

To improve the production yield of ozone per the electric power constumption, attempts using some surface effects of metal oxides have been investigated.The first attermpt has been made by discharging between fine wires electrods which were inserted into a ceramic honeycode and flowing oexgen around the wires. In this case, the ozone yield was less than one for the ordinary ozonizer which consists of the metal electrode, dielectric, discharge gap and metal electrode. The ozone yield in the condition that the metal oxide was put into the discharge gap of the oedinary type ozonizer was obaserved systematically. Generaly, there was a large scatter of experimental results, sometimes we got very high ozone yield for a mewtal oxide, and next time we could not find any positive effiect for the same material. However after a lot of expreimental works, we have the following conclusion, some metal oxides in the discharge gap have negative effect for ozone production, and FeO , Cuo, ZnO, V205, MoO3, and WO3 inctrase the ozone yield than one for without metal oxide in the discharge gap. Especially, the equi-mol-mixture of V205 and MoO3 shows the largest ozone yield.It mas clarified by solvingBoltzaman equation that about 85% of electron enrgy is used for ozxone preduction in the most sutable condition of applied field strength/ gas pressure.

为了提高单位电能消耗臭氧的产量，利用金属氧化物的表面效应进行了一些尝试，第一次尝试是在插入陶瓷蜂窝的细导线电极之间放电，使氧气在导线周围流动。在这种情况下，臭氧产率小于一个普通的臭氧发生器，其中包括金属电极，电介质，放电间隙和金属电极。系统地研究了在常规型臭氧发生器放电间隙中加入金属氧化物时的臭氧产率。总的来说，实验结果有很大的分散性，有时我们得到了很高的臭氧产率的金属氧化物，下一次我们不能找到任何积极的效果相同的材料。但经过大量的实验研究，我们得出以下结论：放电间隙中存在的一些金属氧化物对臭氧的产生有负面影响，其中FeO、CuO、ZnO、V2 O 5、MoO 3、WO 3等金属氧化物的存在比不存在金属氧化物的情况下，臭氧的产生量增加。特别是V_（205）和MoO_3的等摩尔混合物具有最大的臭氧产率，通过求解Boltzaman方程可以看出，在最合适的场强/气压条件下，约85%的电子能量用于臭氧的产生。