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Air Separation Low Purity Oxygen Production Disclosure Number: IPCOM000019367D
Publication Date: 2003-Sep-12

Publishing Venue

The Prior Art Database


There are many process cycles designed to meet the wide variety of different product requirements of cryogenic air separation plants. One of the most economic arrangements for the production of low purity (95%) gaseous oxygen, at reasonable pressures (say, 6 bar), is known as the "mixing column cycle." This requires a separate column to produce the product oxygen. This research note describes how this column can be fitted inside an existing column at an overall reduced cost.