REMOVAL OF HYDROGEN SULFIDE FROM GASEOUS MIXTURE BY SECONDARY AMINO COMPOUND HAVING EXTREME THREE-DIMENSIONAL OBSTACLE

摘要

The selective removal of H2S gas from a normally gaseous mixture containing H2S and CO2 is accomplished by contacting the gaseous mixture with an absorbent solution comprising a severely sterically hindered secondary aminoether alcohol having a cumulative --Es value (Taft's steric hindrance constant) greater than about 1.75 whereby H2S is selectively absorbed from the mixture.