Effects of ultrasonic frequency and liquid height on sonochemical efficiency of large-scale sonochemical reactors

被引：173

作者：

Asakura, Yoshiyuki ^{[1
]}

Nishida, Tomoyuki ^{[2
]}

Matsuoka, Tatsuro ^{[2
]}

Koda, Shinobu ^{[2
]}

机构：

[1] Honda Elect Co Ltd, Aichi 4413193, Japan

[2] Nagoya Univ, Grad Sch Engn, Dept Mol Design & Engn, Chikusa Ku, Aichi 4648603, Japan

来源：

ULTRASONICS SONOCHEMISTRY | 2008年 / 15卷 / 03期

基金：

日本学术振兴会;

关键词：

ultrasound frequency; liquid height; scale-up; sonochemical reactor;

D O I：

10.1016/j.ultsonch.2007.03.012

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The sonochemical efficiency of a cylindrical sonochemical reactor has been investigated as a function of frequency and liquid height. The irradiation frequencies were 45, 129, 231 and 490 kHz. The liquid height was varied from 10 to 700 mm. The sonochemical efficiency of the cylindrical reactor was evaluated by potassium iodide (KI) dosimetry and calorimetry. In our study, the sonochemical efficiency depended on the frequency and liquid height; further, the plots of sonochemical efficiency against liquid height exhibit one or two peaks for each frequency. The sonochemical efficiency up to the first peak increased monotonically with the logarithm of the frequency, and the liquid height for the first peak was inversely proportional to the frequency. From these results, the optimum frequency for a sonochemical reactor can be determined if the liquid height is specified for scale-up of the sonochemical reactor. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：244 / 250

页数：7

共 46 条

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