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Full micro-bubble mass transfer tower tray

A technology of micro-bubbles and mass transfer towers, applied in chemical/physical/physicochemical processes, fractionation, chemical instruments and methods, etc., can solve problems such as poor gas-liquid contact effect, large liquid level drop, liquid back-mixing, etc., to achieve The effect of reducing the spacing of the trays, reducing the height and increasing the opening ratio

Inactive Publication Date: 2012-10-17
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a microbubble integrated mass transfer tray, which can overcome the poor gas-liquid contact effect, large liquid level drop, and easy Liquid leakage, liquid back-mixing and other shortcomings, and provide high mass transfer separation capacity and processing load under the premise of ensuring that the pressure drop is not high

Method used

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  • Full micro-bubble mass transfer tower tray
  • Full micro-bubble mass transfer tower tray
  • Full micro-bubble mass transfer tower tray

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The plate tower is composed of a tray support 2, a microbubble integrated mass transfer tray 1 set on the tray support 2, a downcomer liquid receiving structure (downcomer 4, liquid receiving tray 5, inlet weir 6 and outlet weir 3) , where the overall structure of the tray is as follows figure 1 As shown, the entire tray is composed of microbubble mass transfer materials, made of ceramics, fixed on the tray support ring on the inner wall of the tower by bonding, the pore volume fraction is 90%, and the pore diameter is 0.1mm. The material has a uniform pore size. The radial cross-sectional area of ​​the overall mass transfer material of the microbubbles accounts for 10% of the cross-sectional area of ​​the entire tower. The thickness of the mass transfer material is 1mm, and its structure is a sponge-like porous structure.

[0035] When the tray is working, the liquid falls from the downcomer. Since the entire tray is made of microbubble mass transfer material, the gas ...

Embodiment 2

[0037] The plate tower is composed of a tray support 2, a microbubble integrated mass transfer tray 1 set on the tray support 2, and a downcomer and liquid receiving structure (downcomer 4, liquid receiving tray 5, inlet weir 6 and outlet weir 3) , where the overall structure of the tray is as follows figure 2 As shown, the entire tray is composed of microbubble mass transfer materials, made of silicon carbide, and fixed on the tray support ring on the inner wall of the tower by a buckle method. The pore volume fraction is 50-90%, and the pore diameter is 0.1-5mm, the material is non-uniform pore diameter, the whole material is composed of upper and lower layers of materials with different pore diameters, the upper material pore diameter is 0.1mm, the next material pore diameter is 5mm, the radial cross-sectional area of ​​the microbubble overall mass transfer material occupies the entire tower 20% of the cross-sectional area, the thickness of the mass transfer material is 10mm...

Embodiment 3

[0040] The plate tower is composed of a tray support 2, a microbubble integrated mass transfer tray 1 set on the tray support 2, and a downcomer and liquid receiving structure (downcomer 4, liquid receiving tray 5, inlet weir 6 and outlet weir 3) , where the overall structure of the tray is as follows image 3 As shown, the entire tray is made of microbubble mass transfer material, made of resin, fixed on the tray support ring on the inner wall of the tower by screws, the pore volume fraction is 50%, the pore diameter is 5mm, and the material is Uniform pore size, the radial cross-sectional area of ​​the microbubble overall mass transfer material accounts for 30% of the cross-sectional area of ​​the entire tower, the thickness of the mass transfer material is 100mm, and its structure is a bundled porous structure.

[0041] When the tray is working, the liquid falls from the downcomer. Since the entire tray is made of microbubble mass transfer material, the gas phase passes upw...

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Abstract

The present invention relates to a full micro-bubble mass transfer tower tray. The whole tower tray is composed by a micro-bubble mass transfer material. A gas phase flows upward through pores on the tower tray. The whole tower tray surface is adopted as a bubbling area for gas-liquid contact. The full micro-bubble mass transfer material is fixed on a tower tray support ring on the inner wall of the tower by adopting adhering, snapping, screwing, inlaying or a combination method of adhering, snapping, screwing and inlaying. The radial cross-sectional area of the full micro-bubble mass transfer material is 10-90% of the cross-sectional area of the whole tower. According to the present invention, the whole tower tray is composed by the micro-bubble mass transfer material, such that the gas phase can be transferred upward through the pores on the tower tray; the micro-bubble structure can provide uniform micro-bubble gas distribution so as to increase the ??contact area of the gas and the liquid layer; the tower tray is particularly suitable for the case of large liquid phase load / small gas phase load; the operation flexibility can be increased, and the production capacity of the tower tray can be improved; and the gas phase passes through the liquid layer in the form of micro-bubbles, such that the amount of the liquid carried by the gas phase can be reduced so as to reduce the distance between the column plates and reduce the height of the rectification tower.

Description

technical field [0001] The present invention relates to an important equipment for gas-liquid contact for mass transfer and heat transfer in the fields of oil refining, petrochemical, chemical industry, etc. Mass transfer trays. Background technique [0002] The plate tower is a plate-by-plate contact gas-liquid mass transfer equipment. There are several layers of horizontal trays placed at a certain distance in the tower body. According to the different types of trays, the trays are opened with holes of different shapes and sizes, or installed with floating or fixed valves. Each layer of trays is close to the tower wall. There is a downcomer. During operation, the liquid flows from the upper tray through the downcomer to the lower tray by gravity, and flows through the tray horizontally. The outlet weir on the tray will maintain a certain thickness of the flowing liquid layer on the plate; the gas flows from the bottom of the tower. Pushed by the pressure difference, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/32B01D3/18
Inventor 李洪李鑫钢高鑫姜斌张劲松杨振明
Owner TIANJIN UNIV
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