| 摘要 |
A cyclic process for the removal of H2S from a sour gaseous stream is disclosed, the process being characterized by the reaction of the H2S to sulfur employing aqueous solutions of oxidizing polyvalent metal chelates of specified organic acids, and by the recovery of the sulfur from the solutions with specific extractants. The extractants are selected from compounds (and mixtures thereof) having the formula CnH2(n+1), wherein n is a whole number from 4 through 8, and the recovery may be made prior or subsequent to regeneration of the polyvalent metal chelate solution.
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