Atmospheric xenon enrichment and purification method and device and method for preparing carbon molecular sieve
A purification method and purification device technology, applied in chemical instruments and methods, specific gas purification/separation, measurement devices, etc., can solve problems such as inability to judge and evaluate device operating status in time, improve xenon sampling efficiency, and reduce system performance. low power consumption, high degree of modularity
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[0075] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0076] In this embodiment, membrane dryers and membrane separators are first used to remove most of the water vapor, oxygen, carbon dioxide and part of nitrogen in the air, and the xenon in the air is initially concentrated; the membrane dryers use hollow fiber water removal membrane modules, membrane The separator is a combination of M branch series and / or parallel hollow fiber nitrogen-enriched membrane modules, M is greater than or equal to 2; then the treated gas is concentrated in three stages; the concentration process includes the process of step-by-step normal temperature adsorption and high temperature desorption on the concentration device , the concentration device in this embodiment is three kinds of carbon molecular sieve packed columns with different specifications, including the first stage carbon molecular sieve packed column, th...
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