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Dual-tower argon producing system and process thereof

A process and system connection technology, which is applied in the field of air separation, can solve the problems of large investment, difficulty, and complex three-tower argon production process, and achieve the effects of saving investment, simple control, and reducing liquid pipelines

Inactive Publication Date: 2010-07-21
KAIFENG AIR SEPARATION GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, the three-tower argon production process is complex, difficult and expensive

Method used

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  • Dual-tower argon producing system and process thereof
  • Dual-tower argon producing system and process thereof
  • Dual-tower argon producing system and process thereof

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Embodiment Construction

[0026] Such as figure 1 Shown, the present invention comprises air fractionation tower system and the argon making system that is connected with air fractionation tower system, and described argon making system is made of crude argon tower I (C3-1), thick argon tower II (C3-2), Condenser (K2) and circulating liquid argon pump (AP).

[0027] The crude argon column I is an integration of the crude argon column I (C3-1) and the refined argon column.

[0028] The crude argon tower I (C3-1) is divided into an upper section and a lower section, the upper section and the lower section of the crude argon tower I (C3-1) are packed towers, and the packed tower is composed of packing components and packing.

[0029] The condenser (K2) adopts a plate-fin structure, and the condenser (K2) is divided into room I and room II, wherein room I uses liquid air as a medium, and room II uses liquid argon as a working medium.

[0030] A two-tower argon production process has the following steps:...

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Abstract

The invention belongs to the technical field of space division, and in particular relates to a dual-tower argon producing system and a process thereof for producing argon by low temperature fractionation. The process comprises that: an air fractionating tower produces argon fraction containing 6 to 10 percent of argon GAR1; the argon fraction containing 6 to 10 percent of argon GAR1 is introduced into an argon roughening tower II (C3-2) to form argon fraction GAR2; the argon fraction GAR2 is introduced into an argon roughening tower I (C3-1); in the argon roughening tower I (C3-1), oxygen and nitrogen are removed through the rectification of an argon refining tower, and pure liquid argon is formed between the upper section and the lower section of the argon roughening tower I (C3-1), and is extracted to serve as a product. The system and the process have the advantages of simple process flow, low difficulty in controlling each part, investment conservation and high safety.

Description

Technical field: [0001] The invention belongs to the technical field of air separation, and in particular relates to a two-tower argon production system using low-temperature rectification to produce argon and a process thereof. Background technique: [0002] As the raw material gas of the air separation device, the air is a multi-component mixture, which has three states of gas, liquid and solid, and is in the gaseous state at normal temperature and pressure. The main components of dry air are oxygen, nitrogen, and argon, accounting for 20.95%, 78.118%, and 0.932% of the total volume, respectively. At a standard atmospheric pressure, the boiling points of oxygen, nitrogen, and argon are 77.36K, 90.118K, and 87.29K, respectively. Due to the difference in the boiling points of the three main components in the air, the boiling point difference between oxygen and nitrogen is about 12.7K, and the boiling point difference between oxygen and argon is about 2.8K. The separation o...

Claims

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Application Information

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IPC IPC(8): F25J3/08
Inventor 刘景武马源王庆波张丛权燕春福
Owner KAIFENG AIR SEPARATION GROUP
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