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Foam ceramic annular filler

A ceramic foam and ring-shaped technology, which is applied in chemical/physical/physicochemical processes, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of low mass transfer efficiency, large specific surface area, and high mass transfer efficiency, and achieve improved The effect of large surface area, specific surface area, and low bulk density

Inactive Publication Date: 2005-10-05
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings of existing ceramic fillers such as surface contact or line contact, low porosity, small specific surface area, high bulk density, large resistance, and low mass transfer efficiency, and provide an open structure, stacking Ceramic foam annular packing with low density, large porosity, large specific surface area and high mass transfer efficiency

Method used

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Effect test

Embodiment 1

[0020] Ф25mm ceramic foam annular filler is used, the ceramic foam pore diameter of the torus (1) is 2mm, the diameter of the inner cavity (2) is 10mm, the packing height is 7.5mm, the ratio of height to diameter is 0.3, and the ratio of inner and outer diameters is 0.4.

[0021] Such as figure 1 , figure 2 As shown, the torus (1) of the ceramic foam ring packing is made of foam ceramics and has a unique three-dimensional network structure, which is similar to the structural characteristics of the composite expanded mesh packing. These small holes communicate with the packing surface and have a large specific surface area. Bulk density is small.

[0022] The middle of the packing structure is a cylindrical cavity (2). Such an open packing structure is conducive to further increasing the void ratio of the packing, reducing flow resistance, and at the same time facilitating the renewal of the packing surface and improving the mass transfer efficiency.

[0023] The packing str...

Embodiment 2

[0033] Ф50mm ceramic foam annular filler is used, the ceramic foam pore diameter of the torus (1) is 5mm, the diameter of the inner cavity (2) is 30mm, the packing height is 20mm, the ratio of height to diameter is 0.4, and the ratio of inner and outer diameters is 0.6.

[0034] The porosity of the ceramic foam filler of the present invention is as high as 94%, which is higher than that of Pall rings and saddle rings of the same material, and the specific surface area is 2156m 2 / m 3 , bulk density is only 204kg / m 3. The fluid resistance (i.e. the pressure drop of the packing layer) of the ceramic foam packing of the present invention is less than several other packings of the same size, which is 54% to 67% of the ceramic Pall ring and the saddle ring, and is 54% to 67% of the stainless steel Pall ring and the saddle ring. 67-75%, which indicates that the energy consumption of fluid passing through the packing layer is reduced. Compared with the Pall ring and the saddle rin...

Embodiment 3

[0036] Ф50mm ceramic foam ring packing, the ring body (1) has a ceramic foam hole diameter of 4mm, the inner cavity (2) has a diameter of 40mm, the packing height is 30mm, the ratio of height to diameter is 0.6, and the ratio of inner and outer diameters is 0.8.

[0037] The porosity of the ceramic foam filler of the present invention is 94%, which is higher than the Pall ring and saddle ring of the same material, and the specific surface area is 2016m 2 / m 3 , bulk density is only 195kg / m 3 . The fluid resistance (i.e. the pressure drop of the packing layer) of the ceramic foam filler of the present invention is less than several other fillers of the same size, which is 52% to 68% of the ceramic Pall ring and the saddle ring, and 52% to 68% of the stainless steel Pall ring and the saddle ring. 71-85%, which indicates that the energy consumption of fluid passing through the packing layer is reduced. Compared with the Pall ring and the moment saddle ring, the mass transfer u...

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Abstract

The present invention relates to a foamed ceramic annular filler. Said filler comprises annular body and cylindrical hollow cavity, and said filler is made up by adopting foamed ceramics with 3-D porous reticular structure as raw material, its specific surface area is large, void volume is high, and its mass transfer surface and surface replacement rate are good.

Description

technical field [0001] The invention relates to a packing for chemical mass transfer equipment, in particular to a ceramic packing for gas-liquid and liquid-liquid mass transfer equipment in packing tower devices in oil refining, petroleum, chemical, fine chemical, environmental protection and other equipment. Background technique [0002] Packing is the core component of chemical gas-liquid mass transfer equipment. Its function is mainly to provide sufficient contact surface for gas-liquid or liquid-liquid two phases, and to strengthen the mass transfer or heat transfer process between the two phases. The structure and performance of the packing have a decisive influence on the technical and economic indicators of the packed tower. It is a wide-ranging and large-volume product with significant social and economic benefits. [0003] The widely used random packing in the packed tower can be divided into two categories: solid packing and mesh packing. The mesh packing is made...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/30
Inventor 杨东杰邱学青楼宏铭庞煜霞
Owner SOUTH CHINA UNIV OF TECH
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