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Column plate with porous surface

A technology of trays and porous layers, which is applied in the field of tray tower equipment, can solve problems such as porous surface compounding, and achieve the effects of uniform foam height, improved heat transfer, and improved efficiency

Active Publication Date: 2006-04-05
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0012] At present, there is no technology for plate tower equipment that combines porous surfaces on the tray to improve heat transfer efficiency and mass transfer efficiency

Method used

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  • Column plate with porous surface

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Embodiment Construction

[0033] Carbon steel is used as the material to process the sieve tray with a diameter of 100mm, the diameter of the sieve hole is 4mm, the opening rate is 10%, the width of the downcomer is 20mm, and the aluminum porous surface is processed on the surface of the carbon steel tray by spraying method. The layer thickness is 0.6 mm, the pore size is 100 microns, and the porosity is 30%.

[0034] In a depropanization rectification column with a diameter of 100 mm, the mass transfer performance of the sieve tray column of the present invention and a common sieve tray column was tested.

[0035] Adopt carbon three distillates raw material (molar composition is: propyne, propadiene: 2.57; Propylene: 70.36; Propane: 2.66; Butadiene: 11.92; Butene: 8.73; Butane: 0.25; Hexa-C8; 0.19; Benzene: 0.69; Toluene: 0.03) is raw material, test under the same plate number, opening ratio 10%, aperture 4mm, operating pressure, reflux ratio, test result is shown in Table 1.

[0036] project ...

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Abstract

This invention discloses one tower panel with multiple hole surface, which uses tower surface of gas liquid tower panel with one layer of multiple hole with gap rate of15-45% and with even hole radium of 10 to 200 micro meter with even thickness of 0.2 to 0.8 mm. The tower in this invention can keep effect core boiling status in small temperature difference to strengthen the heat transmission quality and to improve fine stilling rate at 8 percent.

Description

technical field [0001] The invention relates to a plate tower equipment used in gas-liquid mass transfer process. Background technique [0002] Distillation operation is an important separation process used in chemical industry, petroleum, light industry, medicine and other industries. In many processes, the cost of distillation tower accounts for a large proportion of the total equipment cost and operating cost, and distillation technology accounts for 95% of the sum of various petrochemical separation technologies. [0003] Tray tower is a kind of gas-liquid mass transfer equipment widely used in petrochemical production. It consists of a considerable number of trays. The liquid flows from the upper tray (i-1th tray) to the ith tray through the downcomer. , maintain a certain liquid layer on the tray, rely on the liquid level drop to flow through the tray, and then flow to the next layer (i+1th tray) tray through the downcomer, the gas is bubbling or spraying from bottom ...

Claims

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Application Information

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IPC IPC(8): B01D3/16
Inventor 戴伟廖丽华陈硕李东风李振虎程建民
Owner CHINA PETROLEUM & CHEM CORP
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