METHOD FOR CATALYTIC DESULPHURATION OF AN ACID GAS CONTAINING H2S

摘要

Method for catalytic desulphuration of an acid gas containing H2S, and optionally a quantity of at the most 3 % by volume of CS2 and/or COS, by contacting said acid gas and oxygen or air with a titanium oxyde based catalyst, at temperatures comprised between 100C and 600C. The catalyst employed comprises in addition to the titanium oxyde, a sulphate of an alkaline earth metal selected among Ca, Sr, Ba and Mg. Application to the desulphuration of acid gases which contain particularly less than 15 % by volume of H2S and therefore may not be processed in the conventional sulphur plants.