Effects of the concentration of emulsion of oil-in-water on the propagation velocity and attenuation

7th Brazilian Congress on Metrology

Silva, L.S.F.^1 ; Bibiano, D.S.^1 ; Figueiredo, M.K.K.^1 ; Costa-Félix, R.P.B.^1

Laboratory of Ultrasound (Labus), Direc. of Scientific and Industrial Metrology (Dimci), National Institute of Metrology, Quality and Technology (Inmetro), Av. Nossa Sra. das Graças 50, RJ, Duque de Caxias

ZIP 25250-020, Brazil^1

关键词: Oil-in-water;    Propagation velocities;    Ultrasonic attenuation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/575/1/012005/pdf
DOI  :  10.1088/1742-6596/575/1/012005

来源: IOP

【 摘 要 】

Soybean oil is an important feedstock for production of biodiesel that generates about 20 % of oily effluents. This paper studied the effect of concentration of soybean oil-inwater emulsions, in the range from 6 000 to 14 000 ppm, on the propagation velocity and ultrasonic attenuation. The Emission-Reception method has shown that the propagation velocity depends linearly on the concentration. The behavior of attenuation is similar to the velocity. Thus, both parameters can be used to measure oils and greases content in water.