P-25 サーモグラフィーによる円筒型超音波反応器の評価(ポスターセッション)

概要

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Although the chemical reaction using ultrasonic cavitation is reported, it is still a laboratory level. The important subject to utilization is to scale up a sonochemical reactor. In order to scale up an efficient reactor, establish of the evaluation method of a sound field in the whole reactor is desirable. However, it is difficult to characterize and control the sound field of the large scale reator, since the many factors affect on the sound field, and it is not uniform in the whole reactor. Infrared thermography was applied to sound field evaluation of the reactor. The temperature distribution in the reactor was obtained as a function of the irradiation time. The results are compared with those of the luminol image and the chemical reaction of KI aqueous solution. The cylinder type reactor made of acrylate was used and the inner diameter was 70mm. The experiment was carried out at the frequency of 490kHz. The sample volume was 2L. Chemical reactions of luminol or KI aqueous solutions occur at the reactor upper part, which corresponds to the high temperature region in the reactor. In this work, we will discuss the relationship between the sonochemical efficiency and the temperature distribution in the reactor.
日本ソノケミストリー学会の論文
2004-11-11