The Purification of Sour Associated Gas From Daqing Oilfield Using UDS Solvent

Kinetics of CO2 absorption into UDS (a multicomponent solvent) and MDEA solutions are measured in a disk column. Compared with MDEA, UDS shows greater absorption rate under the same operating conditions. The calculated activation energy E a for CO2 absorption into UDS is 44.92 kJ·mol−1, which is higher than that of MDEA. The atmospheric absorption experiment results indicate that UDS solution shows great superiority in removing sour compounds such as H2S and CO2 from oilfield associated gas as compared with MDEA.