RECOVERY OF SULFUR

摘要

In a process for the removal of H2S and optionally CO2, from a gaseous stream by contacting with a reactant solution containing a@ on or a chelate compound of a polyvalent metal and optionally an absorbent selective for CO2, the presence of an alkanediol having 4 to 12 C-atoms accelerates the oxidation H2S to sulphur and the regeneration of the reactant by @ the reduced reactant with an oxygen-containing gas.