Composite filler tower for extracting oil-water system

A composite, packed tower technology, applied in liquid solution solvent extraction and other directions, can solve the problems of poor droplet breakup and low mass transfer efficiency, and achieve the effect of efficient mass transfer and improved mass transfer efficiency.

Inactive Publication Date: 2007-11-21
TIANJIN UNIV
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  • Abstract
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Problems solved by technology

At present, the packings used in the extraction process are mainly random packings, such as Raschig rings, Pall rings, etc., while the general structured packings have poor crushing effect on droplets and low mass transfer efficiency, so they are rarely used in industry. [1]

Method used

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  • Composite filler tower for extracting oil-water system
  • Composite filler tower for extracting oil-water system

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Embodiment Construction

[0012] Below in conjunction with accompanying drawing the present invention is described in detail through the embodiment: adopt the extraction composite packing tower of kerosene (containing 30% tributyl phosphate)-acetic acid-water system to extract acetic acid in water with kerosene. The structure diagram of the extraction composite packed tower is shown in Figure 1. The total height of the extraction composite packed tower is 3000mm; the clarification section 1 is 600mm high and has an inner diameter of 110mm. It is equipped with a light phase outlet 9, and the outlet position is 150mm away from the top of the tower; the heavy phase feed Section 2 and light phase feed section 4 are both 400mm high, and a heavy phase distributor 8 and a light phase distributor 7 are respectively installed in the middle of the two feed sections. The diameter of the head disc is 60mm, and 26 small holes with a diameter of 1.5mm are evenly distributed; below the heavy phase feed section 2 is th...

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Abstract

The invention is concerned with a kind of extractive complex filling tower to oil-water system as the equipment for liquid-liquid mass transfer during the chemical industry production. The tower relates to fine part, heavy phase filling part, filling part, light phase filling part and settlement part from up to down. The filling part has at least two group complex filling units and each group complex filling unit has A, B and C filling layers from up to down. The A, B and C filling layer are all wave filling made up of more than two wave plates. The filling part of the tower uses filling with different structure to carry crash-assemble-speedup-crash again of the dispersed phase and it will enhance the mass transfer efficiency of extraction course.

Description

technical field [0001] The invention relates to a composite packed tower for oil-water system extraction, belonging to a device for liquid-liquid mass transfer in chemical production. Background technique [0002] The column equipment widely used in liquid-liquid extraction and separation is divided into two types: step-by-step contact type (such as sieve plate tower) and differential contact type (such as packed tower). Among them, the plate-type extraction tower relies on the plate holes to disperse the dispersed phase for many times and then aggregate, so that the liquid-liquid surface is renewed and the mass transfer between the phases is carried out. However, since the dispersed phase only relies on plate holes to disperse, and it is easy to form a layer of dispersed phase droplets on the surface of the sieve plate, the surface renewal frequency of the dispersed phase droplets is lower than that of the packed extraction tower, and the mass transfer flux is lower. The f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/04
Inventor 刘春江李健罗祎青袁希钢
Owner TIANJIN UNIV
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