Abstract: The industrial application of NCMA solvent for CO2 removal in dry gas enrichment unit in Wuhan Co. Sinopec was reviewed. The results show that the NCMA solvent can improve CO2 absorption performance compared with MDEA. At the same throughput of the unit, the recycling amine solution rate to the dry gas absorption tower is dropped from 33t/h of MDEA to 14t/h of NCMA solvent and the concentration of CO2 in the treated gas also decreased from 400μL/L to less than 50μL/L. Meanwhile, the H2S loading of NCMA solvent and ability to remove mercaptan are higher than MDEA. Finally, the alkali consumption, electricity consumption and emissions of alkali waste of the process are all reduced by using NCMA solvent in stead of MDEA.