Effect of geometrical configuration of reactor on a ZrP nano-dispersion process using ultrasonic irradiation

Fukunaga, Saki; Higashi, Sayaka; Horie, Takafumi; Sugiyama, Hiroaki; Kanda, Akihisa; Hsu, Tien-Pen; Tung, Kuo‐Lun; Taniya, Keita; Nishiyama, Satoru; Ohmura, Naoto

doi:10.1016/j.ultsonch.2018.11.008

Cited by 13 publications

(4 citation statements)

References 21 publications

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“…When the transducer is placed close to the bottom of the reactor, flat-bottomed vessels are generally the reactors of choice. However, Fukunaga et al 83 have recently shown that while the fragmentation performance in a flat bottom vessel largely depends on the horn position, it varies much less in a spherical bottom vessel. They concluded that spherical bottom vessels provide a large area of high acoustic pressure regions regardless of the horn position.…”

Section: Guidelines For Experimental Parametersmentioning

confidence: 99%

Sonoprocessing: From Concepts to Large-Scale Reactors

et al. 2021

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Intensification of ultrasonic processes for diversified applications, including environmental remediation, extractions, food processes, and synthesis of materials, has received attention from the scientific community and industry. The mechanistic pathways involved in intensification of ultrasonic processes that include the ultrasonic generation of cavitation bubbles, radical formation upon their collapse, and the possibility of fine-tuning operating parameters for specific applications are all well documented in the literature. However, the scale-up of ultrasonic processes with large-scale sonochemical reactors for industrial applications remains a challenge. In this context, this review provides a complete overview of the current understanding of the role of operating parameters and reactor configuration on the sonochemical processes. Experimental and theoretical techniques to characterize the intensity and distribution of cavitation activity within sonoreactors are compared. Classes of laboratory and large-scale sonoreactors are reviewed, highlighting recent advances in batch and flow-through reactors. Finally, examples of large-scale sonoprocessing applications have been reviewed, discussing the major scale-up and sustainability challenges.

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Section: Guidelines For Experimental Parametersmentioning

confidence: 99%

Sonoprocessing: From Concepts to Large-Scale Reactors

et al. 2021

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“…Furthermore, to enhance sonochemical oxidation, the combination with other advanced oxidation processes (AOPs) and the addition of oxidizing agents/dissolved gases/particulate matter has also been examined [1] , [2] , [3] , [4] , [5] , [6] , [7] , [8] , [9] , [10] . Recent studies have actively investigated geometric effects, such as changes in the size/shape of the reactor, as well as the transducer location and liquid level in the ultrasonic reactor [11] , [12] , [13] , [14] , [15] , [16] .…”

Section: Introductionmentioning

confidence: 99%

Effect of dissolved gases on sonochemical oxidation in a 20 kHz probe system: Continuous monitoring of dissolved oxygen concentration and sonochemical oxidation activity

Choi

Son

2023

Ultrasonics Sonochemistry

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Section: Introductionmentioning

confidence: 99%

“…Reportedly, geometric factors, including transducer position, liquid height/volume, and reactor shape, can significantly affect cavitation phenomena and sonochemical reactions [2] , [26] , [27] , [28] , [29] , [30] . Fukunaga et al investigated ultrasonic fragmentation rate of micro-sized particles under various reactors and probe positions [30] . Son et al tested various 20 kHz probe positions in a 500 mL laboratory beaker and reported that the highest sonochemical activity could be obtained when the probe was placed adjacent to the bottom of the beaker for the appropriate liquid volume [26] , [27] .…”

Section: Introductionmentioning

confidence: 99%