| abstract |
A cyclic process for the simultaneous removal of hydrogen sulfide and carbon dioxide from a variety of gas streams is disclosed. The gas stream containing the sour gases is contacted with a solution of the Fe (III) chelate of N-(2-hydroxyethyl) ethylene diamine triacetic acid in a CO 2 selective solvent. The hydrogen sulfide is converted to sulfur, the CO 2 is absorbed to produce a purified gas stream, and the Fe (III) chelate is converted to the Fe (II) chelate. The process includes sulfur removal and simultaneous regeneration of the solvent and the Fe (III) chelate. |