純酸素原料におけるオゾンの発生量の異常減少

概要

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While silent discharge ozonizer feeding high-grade pure oxygen is operated for many hours, the ozone concentration decreases remarkably with time. In the extreme case, the ozone concentration comes down to almost zero. Therefore, we call this “ozone zero phenomenon". The phenomenon was first discovered in about 1990 and various examinations were performed by many researchers. However, the explicit clarification has not yet been found. In order to clarify the mechanism of this phenomenon, the authors developed an ozone production system which consists of two ozonizers connected with cascade in the same direction with the flowing gas. With feeding the pure oxygen, ozone produced by the primary ozonizer was provided into the secondary ozonizer that causes the ozone zero phenomenon and both ozonizers were driven sequentially to observe the each response of the ozone concentration. Moreover, the same investigations were conducted by adding NOx and Ar from an external gas inlet attached between the primary and secondary ozonizers. It is found that the ozone zero phenomenon disappears and ozone concentration is recovered by adding NOx without electrical discharge. Therefore, the phenomenon is considered by decompositions of ozone produced at wall surface.
社団法人電気学会の論文
2005-06-01