Two-stage serial fluidized bed oil-water separator

Abstract

The invention provides a two-stage serial fluidized bed oil-water separator. The two-stage serial fluidized bed oil-water separator comprises a first-stage fluidized bed, a second-stage fluidized bedand a pipeline, wherein the first-stage fluidized bed is arranged in the vertical direction; a liquid inlet is formed in the bottom of the first-stage fluidized bed; a liquid feeding distribution plate is arranged above the liquid inlet; oil absorption particles are stacked on the liquid feeding distribution plate; the second-stage fluidized bed and the first-stage fluidized bed are arranged in parallel; the height position of the second-stage fluidized bed is lower than that of the first-stage fluidized bed; a second feed opening in the bottom of the second-stage fluidized bed is communicatedwith a first discharge opening in the lower part of the first-stage fluidized bed through the pipeline; a second gas inlet is formed in the bottom of the second-stage fluidized bed; an electric heating coil is arranged above the second gas inlet; an air distributor is arranged above the electric heating coil. The two-stage serial fluidized bed oil-water separator provided by the invention can realize effective oil-water two-phase separation and recovery and reutilization of raw materials through fluidization of the fluidized beds and the adsorption action of the oil absorption particles.

Description

technical field [0001] The invention relates to the technical field of oil-water mixture separation, in particular to a two-stage serial fluidized bed oil-water separator. Background technique [0002] With the continuous development of domestic oilfields, most oilfields have entered the middle and late stage of development, the average comprehensive oil content in the produced fluid is less than 20%, and most oilfields will adopt the method of tertiary oil recovery as an important method for stabilizing production increase. means. Therefore, the treatment of oilfield sewage and chemical oily sewage has become one of the main problems faced by petrochemical enterprises. At present, the sewage treatment methods commonly used in China are the "old three sets", namely oil separation, flotation to remove oil, and filtration. Oil removal includes four methods: gravity, pressure, flotation and centrifugal force. [0003] Since oilfields usually produce a large amount of sewage ...

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Problems solved by technology

[0005] Aiming at the defects of low oil-water separation efficiency and high cost in the prior art, the technical problem to be solved by the present invention is to provide a two-stage serial fluidized bed oil-water separator, through the fluidization of the fluidized bed and the adsorption of oil-absorbing particles function, can make the oil-water mixture be separated efficiently and economically

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