超声波化学管流通反应器 超声波结晶和声音发生器

Ultrasonic field enhanced oil extraction can significantly improve the extraction efficiency, improve oil quality, save raw materials, and increase the amount of oil extracted. Bi Hongwei compared the homogenization method with ultrasonic extraction γ 2 linolenic acid, the results show that the ultrasonic method yields more oil, an increase of 12.8% compared to the homogenization method, and saves manpower. Extracting Peanut oil from peanuts can increase the yield of Peanut oil by 2.76 times. Gorodenrd et al. used ultrasonic extraction technology to extract oil from Sunflower seed, which increased the yield by 27%~28%. When the amount of cottonseed was the same, Cottonseed oil was extracted with ethanol. If the intensity of ultrasonic treatment was 1.39W/cm2, the amount of oil extracted in one hour was 8.3 times higher than that without ultrasonic treatment. At present, the extraction of Cod liver oil mainly adopts the dissolution method, with low oil yield and high temperature destroying vitamins. Ultrasound can also be used for the processing and extraction of animal oil, such as the extraction of cod Cod liver oil. Soviet scholars used 300, 600, 800 and 1500 kHz ultrasonic waves to extract cod liver oil, which could extract almost all the oil in the tissue within 2-5min, without damaging the vitamins, and the oil quality was better than the traditional method.

Ultrasonic fields can not only enhance the extraction process of substances by conventional fluids, but also enhance the extraction process of substances under supercritical conditions. Chen Jun et al. conducted an experimental study on ultrasonic enhanced supercritical CO2 fluid extraction process. Wheat germ oil was extracted from wheat germ. After Supercritical fluid extraction and ultrasonic field were added, the extraction rate of wheat germ oil increased by about 10%, and did not cause degradation of wheat germ oil. Ultrasonic extraction is very active in the research and application of oil extraction. The tests and applications that have been carried out involve the extraction of star anise oil, almond oil, clove oil, perilla oil, Oenothera biennis oil, 等.