Flexsorb HP is a new, sterically hindered amine-promoted, potassium carbonate-based process for CO2 absorption from gases. Compared to the conventional diethanolamine (DEA) promoted process, it offers considerable capacity and rate advantages. It has outstanding stability toward the corrosion inhibitor V5+, which degrades DEA. Its amine promoter aging resistance is much superior to that of DEA. It can serve as a "drop in" technology that can be used in an existing plant, leading to capacity increase without any equipment modification. For grassroots applications it requires lower investments than DEA-promoted units.