B133 Decomposition of Saccharides by In-Liquid Plasma and Simultaneous Ultrasonic Irradiation

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  • B133 液中プラズマと超音波の同時照射による糖類の分解(一般講演(3))

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The purpose of this study is to produce hydrogen gas from saccharide efficiently using 27.12 MHz radio-frequency (RF) in-liquid plasma. In order to enhance the production rate of hydrogen gas, ultrasonic irradiation was added to the plasma. The experiments were conducted adopting two different ultrasonic frequencies, 29 kHz using a horn-type transducer and 1.6 MHz using a piezoelectric transducer. When 29 kHz ultrasonic irradiation was added to the RF plasma in 0 to 10wt% glucose solution, the hydrogen production rate increased 4-17% from that without ultrasonic irradiation. When 1.6 MHz ultrasonic irradiation was applied to the RF plasma in 5wt% glucose solution, the gas production rate increased 90-150% from that without ultrasonic irradiation. The effects of ultrasonic atomization and agitation in the solution of nonvolatile glucose enhance a chemical reaction of the in-liquid plasma.

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