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Reaction mechanism and dynamics of absorption of hydrogen sulphide in alkaline medium

��The reaction mechanism of absorption and dynamics of hydrogen sulphide In hydroxide solutions,alkaline buffer solutions and alcohol amine solutions have been discUssed in this paper, and the relative mathematical expressions are given also. In general,this reaction of absorption can be treated as the instantaneous unreversable reaction. Carbon dioxide is much different from hydrogen sulphide on the reaction mechanism in the alkaline medium described above.This reaction of absorption is believed as a rapid or slow pseudo first-order reaction.As treating the mixture of hydrogen sulphide and carbon dioxide with alkaline solutions,according to the difference in their reaction mechamism,one can choose the suitable conditions in order to absorb the former selectively.