Patent ID: 6276171
Filing Date: 2001-08-21
Classification: F25J,Y02E

Abstract:
An integrated apparatus for generating oxygen enriched fluid and/or power comprising a first air separation unit, a gas turbine comprising a combustor and an expander, a first compressor, means for sending air from the first compressor to the combustor and to the first air separation unit, means for sending combustor gases from the combustor to the expander, means for sending nitrogen from the first air separation unit to a point upstream of the expander and means for either compressing the nitrogen sent to a point upstream of the expander, further compressing the air sent to the first air separation unit from the first compressor or expanding the air sent to the combustor from the first compressorwherein the first air separation unit is one single column and the apparatus comprises means for sending liquid nitrogen from an external source to the top of the single column, the external source not being a condenser fed by gaseous nitrogen from the single column and means for removing gaseous nitrogen from the top of the single column and for removing oxygen-enriched fluid from the bottom of the column.