High-power ultrasonic system for the enhancement of mass transfer in supercritical CO2 extraction processes

被引:31
|
作者
Riera, Enrique [1 ]
Blanco, Alfonso [2 ]
Garcia, Jose [3 ]
Benedito, Jose [4 ]
Mulet, Antonio [3 ]
Gallego-Juarez, Juan A. [1 ]
Blasco, Miguel [3 ]
机构
[1] CSIC, Inst Acust, Dpto Senales Sistemas & Tecnol Ultrason, Grp Ultrasonidos Potencia, Serrano 144, E-28006 Madrid, Spain
[2] CSIC, Inst Fis Appl, E-28006 Madrid, Spain
[3] Cent Tecnol AINIA, E-46980 Valencia, Spain
[4] Univ Politecn Valencia, Dpto Tecnol Alimentos, Grupo Analisis & Simulac Procesos Agroalimentar, E-46022 Valencia, Spain
来源
INTERNATIONAL CONGRESS ON ULTRASONICS, PROCEEDINGS | 2010年 / 3卷 / 01期
关键词
Ultrasonic processes; Power ultrasound; Mass transport; Supercritical Fluid extraction; Carbon dioxide; ASSISTED EXTRACTION; FLUID;
D O I
10.1016/j.phpro.2010.01.020
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Oil is an important component of almonds and other vegetable substrates that can show an influence on human health. In this work the development and validation of an innovative, robust, stable, reliable and efficient ultrasonic system at pilot scale to assist supercritical CO2 extraction of oils from different substrates is presented. In the extraction procedure ultrasonic energy represents an efficient way of producing deep agitation enhancing mass transfer processes because of some mechanisms ( radiation pressure, streaming, agitation, high amplitude vibrations, etc.). A previous work to this research pointed out the feasibility of integrating an ultrasonic field inside a supercritical extractor without losing a significant volume fraction. This pioneer method enabled to accelerate mass transfer and then, improving supercritical extraction times. To commercially develop the new procedure fulfilling industrial requirements, a new configuration device has been designed, implemented, tested and successfully validated for supercritical fluid extraction of oil from different vegetable substrates
引用
收藏
页码:141 / 146
页数:6
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