Use Of Cryogenic Nitrogen Generator For Oxygen Enrichment Of Air
Publication Date: 2003-Jul-03
The IP.com Prior Art Database
This disclosure proposes to supply oxygen-enriched air by injecting waste gas from a modified Cryogenic Nitrogen Generator. In order to minimise non-standard costs only minor modifications are implemented, such as: 1) use of a portion of the pure nitrogen product to regenerate the front-end adsorption beds; 2) use of a nitrogen expander to provide refrigeration; 3) use of nitrogen expansion energy to drive the compression of the oxygen enriched air.