Low-temperature separation and extraction system and method of pure neon
An extraction system and low-temperature technology, applied in the field of low-temperature gas separation, can solve the problems of long process path, difficult operation, complex equipment, etc., and achieve the effect of short process path, high safety and simple equipment
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[0047] The low-temperature separation and extraction system for pure neon gas of the present invention includes a raw material buffer pressurization unit, a condensation separation nitrogen removal unit, an adsorption nitrogen removal unit, and a neon purification unit sequentially connected through pipelines.
[0048] Such as figure 1 As shown, the raw material buffer pressurization unit includes a low-pressure buffer tank 11 , a raw material compressor 12 and a medium-pressure buffer tank 13 connected in sequence through pipelines.
[0049] The mixture of neon, helium, nitrogen and hydrogen from the air separation unit is decompressed (10KPa(G)~50KPa(G)) and stored in the low-pressure buffer tank 11. The low-pressure buffer tank 11 also receives nitrogen from the condensation separation The gas separated from the top of the secondary separator 22 in the unit, the two parts of the gas are mixed and compressed to 4.0MPa (G) by the raw material compressor 12, and then enter the...
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