SYSTEM FOR RECOVERING ACID GASES FROM GAS STREAM

摘要

PROBLEM TO BE SOLVED: To provide a system for recovering acid gases from a gas stream.SOLUTION: A gas purification system includes a first section having a first solvent path and a first gas path. The first gas path is configured to flow a stripping gas to remove hydrogen sulfide (HS) and carbon dioxide (CO) from the first solvent path in a first vessel to produce a first gas mixture. The system also includes a second section having a second solvent path. The second solvent path is configured to flow a first solvent mixture to remove HS from the first gas mixture and COfrom the second solvent mixture within a second vessel. The second solvent mixture has a solvent saturated in COat a first pressure, the second vessel is operated at a second pressure, and the first and second pressures are within approximately 20% of one another.