The manner null which removes the sulfur chemical compound which exists in the residual gas of Claus type sulfur factory residual gas die, recovers the said chemical compound with sulfur configuration

摘要

A residual gas is processed by hydrogenation and hydrolysis (1) to combine the sulphur compounds into a single compound H2S, cooling (4, 10) to a temperature within a range Υ-180 °C, where Υ is the dew point of the water in the gaseous effluent from the hydrogenation and hydrolysis step, and selective catalytic oxidation (2a) of the H2S into sulphur at a temperature within the range Υ-180 °C, wherein a sulphur deposit is formed on the catalyst and the sulphur-loaded catalyst is periodically regenerated (2b), followed by cooling of the regenerated catalyst within the range Υ-180 °C to enable reuse in the catalytic oxidation step.