HYDROCARBON GAS TREATMENT

摘要

Method for purification of a pressurized gas stream comprising acidic gases, wherein the method comprises - in a first absorption step bringing the pressurized gas stream in direct contact with a first absorption solution absorbing at least part of the acidic gases, obtaining a gas liquid mixture, - separating the gas liquid mixture in a partly purified pressurized gas stream and a first rich absorption solution, - in a second downstream absorption step bringing the partly purified pressurized gas in contact with a second absorption solution through a membrane contactor, obtaining a second rich absorption solution and a purified pressurized gas stream, - wherein the first and second absorption solutions comprise a physical absorbent, - and condensate is separated and extracted upstream the second absorption step. A system for purification of a pressurized gas stream is also disclosed.