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Low-energy-consumption preparation method for preparing argon and nitrogen gases

A technology with low energy consumption and gas, which is applied in the field of preparation of argon and nitrogen gas with low energy consumption. It can solve the problems of cumbersome methods, high cost, and inability to meet high purity, and achieve the effect of low energy consumption and simple steps.

Pending Publication Date: 2021-10-29
云南安锋气体有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in the preparation process, the industrial purity is often ≥99.9-99.99%, which cannot meet the needs of high purity. The purity of high-purity gas is ≥99.999-99.9999%, and the preparation of high-purity gas is often cumbersome, expensive, and poor in stability.

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  • Low-energy-consumption preparation method for preparing argon and nitrogen gases

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preparation example Construction

[0023] A method for preparing argon and nitrogen gas with low energy consumption, comprising the following steps:

[0024] 1) Send the liquid in the low-temperature liquid storage tank with a purity of 99.99% to the vaporizer for gasification, and the vaporized gas is purified in the purifier; the liquid is one of liquid argon or liquid nitrogen;

[0025] 2) The gas processed by the purifier passes through the impurity remover and then undergoes a purity test. After the purity test is qualified, the gas is sent to a diaphragm compressor, pressurized at 0mpa-15mpa, and loaded into a vacuum bottle. The shell of the impurity remover A composite membrane is provided in the body, the separation membrane includes a base membrane and an effective separation layer, the effective separation layer is a copolymer of tetrafluoroethylene and a perfluorinated solvent, the thickness of the effective separation layer is 0.1-0.5 μm, and the The base film includes 6-12 parts of polyethylene gly...

Embodiment 1

[0036] 1) Send the liquid in the low-temperature liquid storage tank with a purity of 99.99% to the vaporizer for gasification, and the vaporized gas is purified in the purifier; the liquid is one of liquid argon or liquid nitrogen;

[0037] 2) The gas processed by the purifier passes through the impurity remover and then undergoes a purity test. After the purity test is qualified, the gas is sent to a diaphragm compressor, pressurized at 0mpa-15mpa, and loaded into a vacuum bottle. The shell of the impurity remover A composite membrane is provided in the body, the separation membrane includes a base membrane and an effective separation layer, the effective separation layer is a copolymer of tetrafluoroethylene and a perfluorinated solvent, the thickness of the effective separation layer is 0.1-0.5 μm, and the The base film includes 12 parts of polyethylene glycol, 70 parts of polyethylene resin, 7 parts of dispersant, 6 parts of nano-silicon carbide, 8 parts of nanofiber, 6 pa...

Embodiment 2

[0051] 1) Send the liquid in the low-temperature liquid storage tank with a purity of 99.99% to the vaporizer for gasification, and the vaporized gas is purified in the purifier; the liquid is one of liquid argon or liquid nitrogen;

[0052] 2) The gas processed by the purifier passes through the impurity remover and then undergoes a purity test. After the purity test is qualified, the gas is sent to a diaphragm compressor, pressurized at 0mpa-15mpa, and loaded into a vacuum bottle. The shell of the impurity remover A composite membrane is provided in the body, the separation membrane includes a base membrane and an effective separation layer, the effective separation layer is a copolymer of tetrafluoroethylene and a perfluorinated solvent, the thickness of the effective separation layer is 0.1-0.5 μm, and the The base film includes 6 parts of polyethylene glycol, 50 parts of polyethylene resin, 3 parts of dispersant, 4 parts of nano-silicon carbide, 3 parts of nanofiber, 3 par...

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Abstract

The invention discloses a low-energy-consumption preparation method for preparing argon and nitrogen gases, which comprises the following steps: 1) feeding a liquid substance with the purity of 99.99% in a low-temperature liquid storage tank into a vaporizer for vaporizing, and purifying the vaporized gas in a purifier, wherein the liquid substance is one of liquid argon or liquid nitrogen; (2) enabling the gas treated by the purifier to pass through an impurity remover and then to be subjected to purity detection, after the purity detection is qualified, feeding the gas into a diaphragm compressor to be pressurized by 0mpa-15mpa, and filling the gas into a vacuum gas bottle, wherein a composite film is arranged in a shell of the impurity remover; and (3) carrying out qualification test on the gas filled in the vacuum gas bottle, and sending the qualified gas to a warehouse for storage. By adopting the method for producing the argon and nitrogen gases disclosed by the invention, the requirements of the market on the argon and nitrogen gases can be met, and the requirements on the purity of the argon and nitrogen gases can be met while the yield is ensured, so that the purity of the argon and nitrogen gases reaches 99.9996% or above.

Description

technical field [0001] The invention relates to the technical field of argon and nitrogen gas processing, in particular to a method for preparing argon and nitrogen gas with low energy consumption. Background technique [0002] Due to the high content of argon and nitrogen in the air, it is often used as protective gas, carrier gas, dilution gas, standard gas, etc., and is widely used in many industries of the national economy. Argon is used as a representative of the discussion below, and the process technology is also applicable to other inert gases. [0003] At present, in the preparation process, the industrial purity is often ≥99.9-99.99%, which cannot meet the needs of high purity. The purity of high-purity gas is ≥99.999-99.9999%, and the preparation of high-purity gas is often cumbersome, costly, and poor in stability. Contents of the invention [0004] The invention provides a method for preparing argon and nitrogen gas with low energy consumption. [0005] The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B21/04C01B23/00B01D53/22B01D67/00B01D69/12B01D71/26B01D71/32F17C5/00
CPCC01B23/0047C01B21/0444B01D69/12B01D71/26B01D71/32B01D67/0079B01D67/0002B01D53/228F17C5/00F17C2221/014F17C2221/016F17C2223/0123B01D2256/10B01D2256/18
Inventor 鲁侠刘光继邓小波
Owner 云南安锋气体有限公司
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