Process for the Removal of Sulphur Compounds from Gas Mixtures

摘要

A process is described for the removal of sulphur compounds, especially H2S, from gas mixtures by scrubbing with a physical solvent which after the absorption of the sulphur compounds is regenerated and re-used. To improve the absorption and desorption of the sulphur compounds, and to make possible a separation of sulphur formed as a solid it is proposed to add to the solvent an oxidant to convert the sulphur compounds to elementary sulphur, as well as an additive accelerating the rate of reaction of the conversion and/or promoting the sedimentation of the sulphur formed. (ERA citation 12:010882)