B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 17/06 (2006.01) C02F 1/36 (2006.01)
Patent
CA 2536982
A method for demulsifying water-oil emulsions through ultrasonic action, comprises a step of making the water-oil emulsions flow through at least one ultrasonic acting region in a flow direction, wherein: within the ultrasonic acting region, a concurrent ultrasonic wave whose traveling direction is the same as the flow direction of the water-oil emulsions is generated by at least a one first ultrasonic transducer provided at the upstream end of the ultrasonic acting region, and at same time, a countercurrent ultrasonic wave whose traveling direction is opposite to the flow direction of the water-oil emulsions is generated by at least a one second ultrasonic transducer provided at the downstream end of the ultrasonic acting region; and the concurrent ultrasonic wave and the countercurrent ultrasonic wave act simultaneously on the water-oil emulsions which flow through the ultrasonic acting region, so as to demulsify the water-oil emulsions. After being demulsified, the water-oil emulsions gravity settle and separate, or settle and separate under an electric field, so as to be dewatered. The present invention can apply to various water-oil separating technologies in the procedures from mining to processing of crude oil.
L'invention concerne un procédé permettant de désémulsionner une émulsion huile-eau par application d'ultrasons, comprenant une étape qui consiste à faire circuler l'émulsion huile-eau à travers au moins une zone d'application d'ultrasons en suivant d'une direction de flux. Dans cette zone d'application d'ultrasons, une onde ultrasonore concourante qui présente la même direction que le flux d'émulsion, est générée par au moins un générateur ultrasonore qui est placé en amont de la zone à effet d'ultrasons, et une onde ultrasonore en contre-courant simultanée qui présente la direction opposée à la direction d'écoulement de l'émulsion, est générée par au moins un second générateur ultrasonore placé en aval de la zone d'application d'ultrasons, ladite onde concourante et ladite onde à contre-courant agissant simultanément sur l'émulsion qui circule à travers la zone à effet d'ultrasons, afin de la désémulsionner. L'émulsion désémulsionnée est déshydratée par précipitation, sous l'effet d'un champ électrique. Cette invention peut être appliquée dans les types de technologies de traitement de séparation huile/eau du pétrole brut, de l'exploitation à la transformation.
Da Jianwen
Gou Shequan
Han Ping
Zhang Jingyi
Zhang Yougui
China Petroleum & Chemical Corporation
Oyen Wiggs Green & Mutala Llp
LandOfFree
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