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首页> 外文会议>International Symposium on Supercritical Fluids Tome 1: Natural Products, Process amp; Equipment Development; 20030428-20030430; Versailles; FR >EFFECT OF HIGH-INTENSITY ULTRASOUND ON THE PARTICULATE ALMONDS OIL EXTRACTION KINETICS USING SUPERCRITICAL CO_2
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EFFECT OF HIGH-INTENSITY ULTRASOUND ON THE PARTICULATE ALMONDS OIL EXTRACTION KINETICS USING SUPERCRITICAL CO_2

机译：高强度超声对超临界CO_2萃取特定杏仁油动力学的影响

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The influence of high-intensity ultrasound on supercritical CO_2 extraction of oil from particulate almonds was studied. An ultrasonic transducer was installed inside a high pressure 5 L extractor and a power of 50W was applied during the extraction. All experiments were performed at 280 bar and 55℃ with and without ultrasound in order to examine the effects of the acoustic waves. The experimental results showed that the kinetic parameter, considering the process as a second order reaction, was improved about 30% due to ultrasonic radiation and the oil extraction yield was enhanced in about 20% at the end of the process (8.5 h). For design purposes, the experimental data were described applying two empirical models (Naik and Weibull) as well as the model proposed by Sovova.
机译：研究了高强度超声对颗粒杏仁超临界CO_2萃取油的影响。将超声换能器安装在高压5 L提取器内部，并在提取过程中施加50W的功率。所有实验均在280 bar和55℃的有无超声波下进行，以检查声波的影响。实验结果表明，考虑到该过程为二级反应，动力学参数由于超声辐射而提高了约30％，并且在该过程结束时（8.5小时），油的提取产率提高了约20％。为了设计目的，使用两个经验模型（Naik和Weibull）以及Sovova提出的模型描述了实验数据。

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