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Refining technique for extracting high purity helium from highly hydrogenous raw helium

A high-purity helium and process technology, applied in the fields of inert gas compounds, inorganic chemistry, non-metallic elements, etc., can solve the problems of difficulty in achieving economic benefits and low extraction efficiency, and achieve the effect of improving efficiency and high economic benefits.

Active Publication Date: 2017-01-11
四川空分设备(集团)有限责任公司
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Problems solved by technology

However, the extraction efficiency of the existing methods for extracting helium is low, and it is difficult to achieve higher economic benefits

Method used

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  • Refining technique for extracting high purity helium from highly hydrogenous raw helium
  • Refining technique for extracting high purity helium from highly hydrogenous raw helium

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Embodiment

[0045] see figure 1 with figure 2 , this embodiment provides a high-purity helium refining process for extracting crude helium with high hydrogen content, which can be used for high-purity extraction of crude helium raw materials with high hydrogen content extracted from liquefied natural gas, so as to obtain high-purity helium products. The high-hydrogen crude helium extraction and high-purity helium refining process greatly improves the efficiency of helium extraction and can achieve higher economic benefits. In this embodiment, the high-purity helium refining process for extracting high-purity helium from high-hydrogen-containing crude helium is performed by a high-purity helium refining system for extracting high-purity helium from high-hydrogen-containing crude helium.

[0046] The refining process for extracting high-purity helium from crude helium with high hydrogen content includes:

[0047] Raw material supply S100: supply crude helium raw materials, oxygen, liquid...

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Abstract

The invention provides a refining technique for extracting high purity helium from highly hydrogenous raw helium; the refining technique includes: dehydrogenation of raw helium: removal of hydrogen from raw helium; dehydration: dehydration of the dehydrogenated raw helium; denitrification: denitrification of the dehydrated raw helium; the refining technique for extracting high purity helium from highly hydrogenous raw helium greatly improves the efficiency of extraction of helium gas, and can bring more economic benefits.

Description

technical field [0001] The invention relates to the technical field of helium gas extraction, in particular to a refining process for extracting high-purity helium from crude helium with high hydrogen content. Background technique [0002] Helium is a kind of inert gas and an important strategic material. As a protective gas and ultra-low temperature refrigerant, it has very important uses in aerospace, national defense, semiconductor production, nuclear magnetic resonance and gas leak detection. Helium mainly exists in natural gas, and the extraction of helium from natural gas is the main industrial source of helium. At present, there are three main methods for extracting helium from natural gas, namely cryogenic separation, membrane separation and pressure swing adsorption. However, the extraction efficiency of the existing methods for extracting helium is low, and it is difficult to achieve higher economic benefits. Contents of the invention [0003] The purpose of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B23/00
CPCC01B23/0094C01B2210/0004C01B2210/0021C01B2210/0031C01B2210/0046C01B2210/0053C01B2210/0062
Inventor 魏义江江蓉刘可植向润清
Owner 四川空分设备(集团)有限责任公司