PROCESS AND APPARATUS FOR DRYING AND COMPRESSING A CO2-RICH STREAM

摘要

In a process for compressing a CO2-rich fluid containing water: the CO2-rich fluid is compressed in a compressor (61); upstream of the compression step, an antifreeze is mixed with the CO2-rich fluid containing water; the CO2-rich fluid containing antifreeze is cooled; water is separated from the cooled fluid; and the water-depleted cooled fluid; is compressed in the compressor, characterized in that: the CO2-rich fluid containing water is sent to a scrubbing column (3) fed, preferably at the top, with a water/antifreeze mixture (53), where it cools and is separated from the water, the water-depleted cooled fluid being extracted from the top of the column; a water/antifreeze mixture in the column is extracted at a level below the top; the mixture is cooled using the refrigeration from an apparatus for cooling and/or purifying the cooled fluid (55) compressed in the compressor (61); and the fluid is returned to the top of the column.