Process for the selective oxidation of hydrogen sulfhide

摘要

A process for the selective oxidation of hydrogen sulphide in a hydrogen sulphide containing feed gas to elemental sulphur, wherein the hydrogen sulphide containing feed gas ( 3 ), an inert liquid medium ( 5 ), and a molecular-oxygen containing gas ( 4 ) are supplied to a reaction zone ( 1 ) comprising at least one catalytic zone ( 2 ) comprising an oxidation catalyst to form elemental sulphur and a gaseous stream depleted in hydrogen sulphide ( 8 ), in which process the oxidation catalyst of each catalytic zone ( 2 ) is contacted with hydrogen sulphide and/or molecular-oxygen in the presence of inert liquid medium at a temperature in the range of from 120 to 160° C., under such conditions that the elemental sulphur formed is essentially in liquid form and is removed from the reaction zone with the inert liquid medium.