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air separation unit

A kind of air separation and one-part technology, applied in cold treatment separation, solidification, lighting and heating equipment, etc., can solve the problems of expanding installation area, increasing installation cost, increasing height, etc.

Active Publication Date: 2022-08-02
LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, installing above the low-pressure distillation column will greatly increase the height, and installing next to the low-pressure distillation column will increase the installation area
Where the low pressure distillation column is divided, the high pressure vessel end plates and distributors must be enlarged or a plurality of these high pressure vessel end plates and distributors must be installed, which increases installation costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] will use Figure 1A The air separation apparatus 1 of Example 1 will be described.

[0095] The air separation device 1 has a first distillation column (high pressure column), a second distillation column (low pressure column) and a crude argon distillation column comprising one or more spatially separated parts (eg at least one each upper and lower distillation columns). The second distillation column (low pressure column) is arranged at least partially beside the first distillation column (high pressure column) in the height direction, and the lower distillation column (low pressure part) of the crude argon distillation column is arranged at least partially above the first distillation column (high pressure column) ) above. As a result, the height of the air separation unit can be reduced.

[0096] The first distillation column 11 is arranged inside the first cold box 10a, and is provided with a first condenser 121 in a diagonal direction above its top 113 (arranged...

Embodiment 2

[0113] will use Figure 1B The air separation apparatus 1 of Example 2 will be described. Configurations different from those of Embodiment 1 will be described, and the same configurations will not be described again or only briefly.

[0114] The crude argon distillation column 30 is arranged inside the first cold box 10 and is provided with a second condenser 304 inside or above the top 303 thereof. The crude argon distillation column 30 may also be arranged inside a cold box separate from the first cold box 10 .

[0115] The pure argon distillation column is not necessary in Example 2 and can be omitted.

Embodiment 3

[0118] will use Figure 2A The air separation apparatus 1 of Example 3 will be described.

[0119] The air separation device 1 has a first distillation column (high pressure column), a second distillation column (low pressure column) and a crude argon distillation column comprising one or more spatially separated sections (eg at least one each upper and lower distillation columns). The second distillation column (low pressure column) is arranged at least partially beside the first distillation column (high pressure column) in the height direction, and the lower distillation column (low pressure part) of the crude argon distillation column is arranged at least partially above the first distillation column (high pressure column) ) above. As a result, the height of the air separation unit can be reduced.

[0120] The first distillation column 11 is arranged inside the first cold box 10 .

[0121] The second distillation column 21 is arranged inside the second cold box 20, inc...

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PUM

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Abstract

Problem: To provide an air separation unit capable of reducing the height share associated with the condenser installed at the top of the high pressure distillation column, compared to conventional air separation units, without reducing product production efficiency, increasing Large installation area and does not divide the low pressure distillation column. Solution to the problem: the air separation device 1 includes: a first distillation column 11, a first condenser 121 is provided at a position separated from its top 113, and a distillation column whose pressure is lower than that of the first distillation column 11; and : the second distillation column 21 arranged beside the first distillation column 11 , and at least a part of the crude argon distillation column or the whole of the crude argon distillation column arranged above the top 113 of the first distillation column 11 .

Description

technical field [0001] The present invention relates to an air separation device, in particular to a structural configuration capable of reducing installation area and height. Background technique [0002] Patent Document 1 discloses an air separation apparatus for producing products such as oxygen, nitrogen, and argon. The air separation unit includes various distillation columns, such as high pressure distillation columns, low pressure distillation columns and crude argon distillation columns, for the efficient production of these products. Although from a structural point of view, these distillation columns can take various layout configurations, it is desirable to reduce the installation area and installation height to achieve an optimized structure. [0003] Patent Document 2 discloses that a crude argon distillation column is installed in the upper part of the high-pressure distillation column. However, with this method, the condenser installed at the top of the high...

Claims

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Application Information

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IPC IPC(8): F25J3/04
CPCF25J3/04721F25J3/0489F25J2210/40F25J2215/50F25J2215/58F25J3/04872F25J3/04878F25J3/04884F25J3/04678F25J3/04727F25J3/04412F25J3/04703F25J2235/50F25J2235/58F25J2235/42
Inventor 广濑健二
Owner LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE