PROCESS OF REGENERATING A HIGH-BOILING SCRUBBING SOLUTION WHICH CONTAINS CO2 AND H2S

摘要

The washing solution having a boiling point above 100 DEG C at atmospheric pressure serves for gas purification at temperatures from 5 to 70 DEG C and is thus loaded at least with CO2 and H2S. For regeneration, the loaded washing solution is fed at a pressure of at least 2 bar and a temperature of at least 60 DEG C to a flash zone and flashed, an H2S-rich flash gas being discharged from the flash zone. The washing solution from the flash zone is subjected to hot regeneration, the washing solution being largely freed of the remaining loading by inert-gas stripping below its boiling point. A gas mixture containing inert gas is taken off from the hot regeneration and contacted with washing solution. ……