초록

Sulfur is recovered from gases containing H2S and SO2 by absorption of the H2S and SO2 in a glycol absorbent, and reaction of the H2S and SO2 in solution in the absorbent in the presence of a solid catalyst.

대표청구항 ▼

A process for recovery of sulfur comprising the steps of (1) loading of an absorbent selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, and propylene glycol with a mixture of hydrogen sulfide and sulfur dioxide by absorbing hydrogen sulfide, sulfur dioxide,

A process for recovery of sulfur comprising the steps of (1) loading of an absorbent selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, and propylene glycol with a mixture of hydrogen sulfide and sulfur dioxide by absorbing hydrogen sulfide, sulfur dioxide, or mixtures thereof from waste gases that additionally contain carbon dioxide, oxygen or nitrogen and (2) reacting the hydrogen sulfide and sulfur dioxide, in solution in the absorbent, in contact with a solid catalyst, the active ingredient of which is alumina.