Process for purifying inert gases

Details Process for purifying inert gases Process for purifying inert gases

1996-05-20

1999-02-16

Spitzer, Robert

Gas separation: processes

Compressing and indirect cooling of gaseous fluid mixture to...

And liquid contact

95186, 95187, 95228, 95237, B01D 5314, B01D 4700

Patent

active

058715630

ABSTRACT:
The invention relates to a process for the purification of an inert gas by subjecting the inert gas to a sorption treatment, especially gas scrubs. The invention comprises compressing the inert gas to a higher pressure before the sorption treatment, performing the sorption treatment at this higher pressure, and then expanding the purified inert gas. The advantages of the process of the invention can be seen to be essentially that, for example, streams of waste air which contain as impurities volatile solvents such as methyl chloride, isopropyl chloride, or dichloromethane, can be cleaned up with low consumption of energy and scrubbing liquid. Correspondingly, the equipment can have smaller dimensions.

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