| 摘要 |
<p>An air separation process for obtaining high purity oxygen and nitrogen comprises the steps of cooling compressed air in a heat exchanger to remove its water content; removing carbon dioxide from the dried air in an adsorption unit; further cooling the dry CO2-free air and passing the residue to a rectification column; regenerating the beds of the adsorption unit with waste nitrogen from the rectification column; and purging water from the heat exchanger with the effluent gas obtained from regeneration in the adsorption unit.</p> |
