ABSORBENT COMPOSITION CONTAINING MOLECULES WITH A HINDERED AMINE AND A METAL SULFONATE, PHOSPHONATE OR CARBOXYLATE STRUCTURE FOR ACID GAS SCRUBBING PROCESS

摘要

An acid gas absorbent comprising a metal sulfonate, phosphonate or carboxylate of a hindered amine and a process for the selective removal Of H2S as well as other acidic components such as carbon disulfide, carbonyl sulfide and oxygen and sulfur derivatives of C1 to C4 hydrocarbons from mixtures containing such acidic components and CO2 using said absorbent.