AIR PURIFICATION SYSTEM AND METHOD FOR MAINTAINING NITROGEN AND OXYGEN RATIOS WITH REGENERATIVE PURIFICATION UNITS

摘要

The invention teaches a purification system which uses a series of operations, in a single unit, to purify air, while extending the life of the purification units. Air is passed through a coarse water trap to remove liquid. The semi-dry air, which is usually less than 3000 ppm of water vapor, is then passed through adsorbers (150 (1)-(3)), which remove the remaining moisture and all the carbon dioxide in a purification process. The drying of the air before passing it through the adsorbers (150 (1)-(3)) allows for greatly improved efficiency of air purification and extends the life of both the oxygen catalyst (200) and the adsorption columns (150 (1)-(3)). The present invention also flows the air to be purified through adsorption columns (150 (1)-(3)) twice, before and after passing the air through an oxygen catalyst unit (200). The oxidizing catalyst (200), which is heated to a temperature of approximately 300 degrees centigrade, converts carbon monoxide and hydrocarbons to H2O and CO2. The newly converted H2O and CO2 are then removed by the second pass through a second adsorption column in the second flow direction or downstream. The flows of air are then rotated with a third column, which is thermally regenerating with the facilitation of a regeneration air supply from the purified air.