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Drying tower for gas drying

A technology of gas drying and drying tower, which is applied in the direction of gas treatment, membrane technology, and dispersed particle separation, etc. It can solve the problems of large pressure drop in the gas drying process, and achieve the effect of large windward area, good technical effect and low flow rate

Inactive Publication Date: 2018-07-20
SINOPEC SHANGHAI ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is the problem of large pressure drop in the existing gas drying process, and a new drying tower for gas drying is provided, which has the advantage of small pressure drop in the gas drying process

Method used

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  • Drying tower for gas drying
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Embodiment 1

[0018] A gas drying tower with low pressure drop, its structure is shown in figure 1 , the drying tower is cylindrical, the size is OD800*5000mm, the air inlet size is OD150, the air outlet size is OD150, the built-in desiccant is color-changing silica gel particles, the particle size is 3mm, and the porosity is 0.4. The desiccant is in the shape of a ring in the drying tower For filling, the inner ring diameter is 150mm, the outer ring diameter is 700mm, and the filling height is 4800mm. 500m 3 Ammonia gas per hour, with a purity of 99%, a moisture content of 1%, a temperature of 30°C, and a pressure of 0.05 atm, enters the drying tower through the air inlet (1), then enters the gas distribution channel (4), and then passes through the desiccant In the layer (3), the moisture in the ammonia gas is absorbed by the desiccant, collects in the gas-collecting channel (5), and is discharged through the gas outlet (2). During the whole drying process, the pressure drop at the gas i...

Embodiment 2

[0020] A gas drying tower with low pressure drop, its structure is shown in figure 1 , the drying tower is cylindrical, the size is OD800*1400mm, the air inlet size is OD100, the air outlet size is OD100, the built-in desiccant is color-changing silica gel particles, the particle size is 1mm, and the porosity is 0.3. The desiccant is in the shape of a ring in the drying tower For filling, the inner ring diameter is 150mm, the outer ring diameter is 700mm, and the filling height is 1375mm. 200m 3 Ammonia gas per hour, with a purity of 99.5%, a moisture content of 0.5%, a temperature of 30°C, and a pressure of 0.05 atm, enters the drying tower through the air inlet (1), then enters the gas distribution channel (4), and then passes through the desiccant In the layer (3), the moisture in the ammonia gas is absorbed by the desiccant, and is collected in the gas-collecting channel (5), and then discharged through the gas outlet (2). During the whole drying process, the pressure dro...

Embodiment 3

[0022] A gas drying tower with low pressure drop, its structure is shown in figure 1 , the drying tower is cylindrical, the size is OD1200*26000mm, the air inlet size is OD250, the air outlet size is OD250, the built-in desiccant is color-changing silica gel particles, the particle size is 5mm, and the porosity is 0.6. The desiccant is in the shape of a ring in the drying tower For filling, the inner ring diameter is 250mm, the outer ring diameter is 1100mm, and the filling height is 25500mm. 30000m 3 Ammonia gas per hour, with a purity of 99.5%, a moisture content of 0.5%, a temperature of 30°C, and a pressure of 0.05 atm, enters the drying tower through the air inlet (1), then enters the gas distribution channel (4), and then passes through the desiccant In layer (3), after the moisture in the ammonia gas is absorbed by the desiccant, it collects in the gas collection channel (5), and then is discharged through the gas outlet (2). During the entire drying process, the press...

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Abstract

The invention relates to a drying tower for gas drying and mainly solves the problem of high pressure drop in the existing gas drying process. The drying tower for gas drying comprises a to-be-dried gas inlet and a dried gas outlet, wherein the tower is filled with a dryer in a circular manner; a channel between the dryer layer and the outer wall of the drying tower is a gas allocation channel, aspace defined in a circle of the dryer layer is a gas collecting channel, and after to-be-dried gas enters the drying tower, the to-be-dried gas firstly enters the allocation channel, then passes by the dryer layer and then is collected in the gas collecting channel to flow out; the pressure drop of the drying tower for gas drying is smaller than 10 kpa. By means of the technical scheme, the problem is better solved, and the drying tower can be used for gas drying.

Description

technical field [0001] The invention relates to a drying tower for gas drying. Background technique [0002] In the field of petrochemical industry, the obtained gas products or intermediate products often contain a small amount of moisture and fail to meet the standard, and a drying tower is required to remove the trace amount of water vapor in the gas. The pressure of some gas itself is not high, and the allowable pressure drop when passing through the drying tower is very low. As a result, the existing drying tower often needs to be made into a chunky pancake shape, the equipment occupies a large area, and the equipment cost is high. [0003] Patent CN 205156569U discloses a utility model of a calcium carbonate drying tower. There are not less than three layers of inclined drying towers inside the central frame of the tower body. Although the materials can be dried layer by layer, the gas passing through is reduced to some extent. The pressure drop of the drying bed, but...

Claims

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Application Information

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IPC IPC(8): B01D53/26B01D53/28B01D53/04
CPCB01D53/04B01D53/261B01D53/28B01D2253/106B01D2257/80
Inventor 刘肖肖贾微裴凯凯陈迎张艺徐曼张翼
Owner SINOPEC SHANGHAI ENG